Standard ECMA-273 Feb r uar y 1 9 9 8
Standardizing
Information
and
Communication
Systems
Case for 120 mm DVD-RAM Disks
P h o n e : + 4 1 2 2 8 4 9 . 6 0 . 0 0 - F a x : + 4 1 2 2 8 4 9 . 6 0 . 0 1 - U R L : h t t p : / / www. e c m a . c h - I n t e r n e t : h e l p d e s k @ e c m a . c h
.
Standard ECMA-273 Feb r uar y 1 9 9 8
Standardizing
Information
and
Communication
Systems
Case for 120 mm DVD-RAM Disks
P h o n e : + 4 1 2 2 8 4 9 . 6 0 . 0 0 - F a x : + 4 1 2 2 8 4 9 . 6 0 . 0 1 - U R L : h t t p : / / www. e c m a . c h - I n t e r n e t : h e l p d e s k @ e c m a . c h MB Ecma-273.doc
12-02-98 16,10
.
Brief History
ECMA Technical Committee TC31 was established in 1984 for the standardization of Optical Disks and Optical Disk Cartridges (ODC). Since its establishment, the Committee has made major contributions to ISO/IEC toward the development of International Standards for 80 mm, 90 mm, 120 mm, 300 mm, and 356 mm media. Numerous standards have been developed by TC31 and published by ECMA, almost all of which have also been adopted by ISO/IEC under the fast-track procedure as International Standards. In February 1997 a group of ten Companies, known as the DVD Forum, proposed to TC31 to develop standards for the optical disks known as DVD disks. TC31 accepted this proposal and started the work that has led to standards ECMA-267(1997) ECMA-268 (1997)
120 mm DVD-Read-Only Disk 80 mm DVD-Read-Only Disk
Further work, supported by nine members of the DVD Forum, has been undertaken for a rewritable disk known as DVD-RAM which has led to Standard ECMA-272 (1998)
120 mm DVD Rewritable Disk (DVD-RAM)
ECMA Technical Committee TC15 is responsible for the development and maintenance of Standards and Technical Reports for volume and file structure for optical disks. This ECMA Standard specifies a case for use with the disk specified in Standard ECMA-272 so as to form an optical disk cartridge. Three Types are specified that allow to meet the requirements of applications for which such cartridges are used. It is expected that a corresponding International Standard will be adopted by ISO/IEC.
This ECMA Standard has been adopted by the General Assembly in February 1998.
.
- i -
Table of Contents Section 1 - General
1
1 Scope
1
2 Conformance
1
3 Reference
1
4 Definitions
1
4.1 Cartridge 4.2 Case
1 1
5 Conventions and notations
1
5.1 Representation of numbers 5.2 Names
1 1
6 General description of the case
2
6.1 General description of the Type 1 case 6.2 General description of the Type 2 case 6.3 General description of the Type 3 case
2 2 2
7 General requirements
3
7.1 Environments
3
7.1.1 Test environment 7.1.2 Operating environment 7.1.3 Storage environment 7.1.4 Transportation
4 3 4 4
7.2 Temperature shock 7.3 Safety requirement 7.4 Flammability
4 4 4
Section 2 - Dimensional and Mechanical characteristics of the case
4
8 Dimensional characteristics
4
8.1 Dimensions of the Type 1 case
4
8.1.1 Overall dimensions 8.1.2 Location hole 8.1.3 Alignment hole 8.1.4 Reference surfaces 8.1.5 Insertion slots 8.1.6 Detents 8.1.7 Gripper slots 8.1.8 Write-inhibit hole 8.1.9 Sensor holes 8.1.10 Sensing areas 8.1.11 Spindle and head windows 8.1.12 Shutter shape 8.1.13 Path for shutter opener 8.1.14 Label area
5 6 6 6 6 7 7 8 8 9 9 10 10 11
- ii -
8.1.15 Identification marks for Sides A and B
11
8.2 Dimensions of the Type 2 case
23
8.2.1 Overall dimensions 8.2.2 Location hole 8.2.3 Alignment hole 8.2.4 Reference surfaces 8.2.5 Insertion slot 8.2.6 Detents 8.2.7 Gripper slots 8.2.8 Write-inhibit hole 8.2.9 Sensor holes 8.2.10 Sensing areas 8.2.11 Spindle and head windows 8.2.12 Shutter shape 8.2.13 Path for shutter opener 8.2.14 Label area 8.2.15 Identification mark for Side A 8.2.16 Opening and opening cover for taking the disk out of the case
23 24 24 24 25 25 26 26 26 27 27 28 29 29 29 30
8.3 Dimensions of the Type 3 case
40
8.3.1 Sensor holes 8.3.2 Opening and opening cover
41 41
9 Mechanical characteristics
41
9.1 Material 9.2 Mass 9.3 Edge distortion 9.4 Compliance 9.5 Shutter opening force
41 41 41 41 41
10 Interface between the case used as cartridge and a drive
41
10.1 Capture cylinder 10.2 Inner dimensions of the case
41 42
11 Orientation of the disk in the case
44
11.1 Two-sided disk (Type 2S) in case Type 1 11.2 One-sided disk (Type 1S) in case Types 1, 2 and 3
44 44
Annex A - Position of the case relative to the Reference Planes
45
Annex B - Edge distortion test
47
Annex C - Compliance test
49
Annex D - Examples of an opening cover for Type 2 or Type 3 cases
51
Annex E - Transportation
53
Section 1 - General 1
Scope This ECMA Standard specifies the characteristics of a case for use with 120 mm DVD-RAM disks as specified in Standard ECMA-272. The present ECMA Standard specifies three related, but different implementations of such cases, viz. Type 1
Provides a case for a one-sided (Type 1S) or a two-sided (Type 2S) DVD-RAM disk such that the disk can not be removed from the case. This case is reversible.
Type 2
Provides a case for a one-sided DVD-RAM disk (Type 1S) such that the disk may be removed from the case. This case is not reversible.
Type 3
Provides a case into which a one-sided DVD-RAM disk (Type 1S) may be inserted, then used as a cartridge. This case is not reversible.
This ECMA Standard specifies
the environments in which the cases are to be operated and stored; the dimensional and mechanical characteristics of the case, so as to provide mechanical interchangeability between data processing systems; This ECMA Standard provides for mechanical interchange between optical disk drives. Together with Standard ECMA-272 for 120 mm DVD-RAM disks and a standard for volume and file structure, it provides for full data interchange between data processing systems.
2
Conformance A claim of conformance with this ECMA Standard shall specify the Type implemented. A case shall be in conformance with this ECMA Standard if it meets the mandatory requirements specified herein for its Type.
3
4
Reference ECMA-129
Information Technology Equipment - Safety (1994)
ECMA-272
120 mm DVD Rewritable Disk (DVD-RAM) (1998)
Definitions For the purpose of this ECMA Standard the following definitions apply.
4.1
Cartridge A device consisting of a case containing a rewritable disk.
4.2
Case The housing for an optical disk, that protects the disk and facilitates disk interchange.
5 5.1
Conventions and notations Representation of numbers A measured value is rounded off to the least significant digit of the corresponding specified value. For instance, it implies that a specified value of 1,26 with a positive tolerance of + 0,01 and a negative tolerance of - 0,02 allows a range of measured values from 1,235 to 1,275.
5.2
Names The names of entities, e.g. specific sides, etc. are given a capital initial.
- 2 -
6 6.1
General description of the case General description of the Type 1 case (Figure 1) The case is a rigid protective container of rectangular shape. Sides A and B of the case are identical as far as the features given here are concerned. References to Sides A and B of the case can be changed to B or A respectively. When the opening of the one is a head and spindle window for the spindle and the optical head of the drive, that of the other is an access window for the disk clamping apparatus. A shutter uncovers the windows upon insertion into the drive, and automatically covers them upon removal from the drive. The case has features that enable a drive to reject a mis-inserted cartridge, to inhibit writing, sensor holes, detents for autoloading and a vertical use, gripper slots for an autochanger, label areas and side identification marks. Sides A and B of the case have the same configuration.
6.2
General description of the Type 2 case (Figure 2) The Type 2 case has the same features as the Type 1 case, but with some differences. The shape of the case is different on Side A and on Side B. Side A does not need to have a location hole, an alignment hole, Reference Surfaces, a write-inhibit hole, sensor holes and sensing areas. The case has an opening closed by a cover. This cover can be opened. In open position, the disk can be taken out of the case. Sensor hole A1 is originally closed. When the disk has been removed from the case, then this hole remains permanently open, indicating that the original disk contained in the case has been removed at least once or has been replaced by another disk.
6.3
General description of the Type 3 case (Figure 2) The Type 3 case is identical with Type 2 case except that the sensor hole A1 is always open. C ase S id e A R efe ren ce su rface S 3 Iden tifica tio n m ark o f C ase S ide A
E d g e fo r sh u tter op e ner
D isk S ide B
S h u tte r
R efe ren ce su rface S 1 R efe ren ce su rface S 4 L o cation h ole
Se n sor ho les for disk Sid e B
D ete nt for auto loa d in g
W rite-in hib it ho le for disk Sid e B
Inse rtion slot Sp in dle an d head w ind ow s
L ab el a rea
R efe ren ce su rface S 2 A lig n m en t ho le
D ete nt for vertical u se
G ripp e r slo t 97-0092-A
S e n sin g area
Figure 1 - General view of the Type 1 case, seen from Side A
- 3 -
C ase S ide A
Id entification m ark of C a se Side A D isk Side B
E dg e for the shutter ope ner S hutter
D e tent for autoloading
D e tent for v ertic al u se
In sertion slot S pindle and head w indo w s
L a b el area O p ening c ove r G rippe r slot
97-0093-A
Figure 2 - General view of the Type 2 and Type 3 cases, seen from Side A
7
General requirements
7.1 7.1.1
Environments Test environment The test environment is the environment where the air immediately surrounding the case has the following properties: Temperature Relative humidity Atmospheric pressure
: 23 °C ± 2 °C : 50 % ± 5 % : 86 kPa to 106 kPa
No condensation on or in the case or cartridge shall occur. Before testing, the case or cartridge shall be conditioned in this environment for 48 hours minimum. Unless otherwise stated, all tests and measurements shall be made in this test environment. 7.1.2
Operating environment This ECMA Standard requires that a case which meets all requirements of this ECMA Standard in the specified test environment provides mechanical interchange over the specified ranges of environmental parameters in the operating environment. When the case according to this ECMA Standard contains a DVD-RAM disk according to Standard ECMA-272, they constitute together a cartridge. This cartridge shall meet the requirements of this clause and provides for data interchange.
- 4 -
The operating environment is the environment where the air immediately surrounding the case or cartridge has the following properties: Temperature : 5 °C to 60 °C Relative humidity : 3 % to 85 % Absolute humidity : 1 g/m3 to 30 g/m3 Temperature gradient : 10 °C /h max. Relative humidity gradient : 10 %/h max. No condensation on or in the case or cartridge shall occur. If the case or cartridge has been exposed to conditions outside those specified in this clause, it shall be acclimatized in the operating environment for at least 2 h before use. 7.1.3
Storage environment The storage environment is defined as an environment where the air immediately surrounding the case or cartridge has the following properties. Temperature Relative humidity Absolute humidity Atmospheric pressure Temperature gradient
: -10 °C to 50 °C : 3 % to 85 % : 1 g/m3 to 30 g/m3 : 75 kPa to 106 kPa : 10 °C /h max.
Relative humidity gradient : 10 %/h max. No condensation on or in the case or cartridge shall occur. 7.1.4
Transportation This ECMA Standard does not specify requirements for transportation; guidance is given in annex E.
7.2
Temperature shock The case shall be withstand a temperature shock of up to 20C when inserted into, or removed from, the drive.
7.3
Safety requirement The case shall satisfy the safety requirements of Standard ECMA-129, when used in the intended manner or in any foreseeable use in an information processing system.
7.4
Flammability The case shall be made from materials that comply with the flammability class for HB materials, or better, as specified in Standard ECMA-129.
Section 2 - Dimensional and Mechanical characteristics of the case 8
Dimensional characteristics The dimensions of the case shall be referred to three orthogonal Reference Planes X, Y and Z. The case shall be constrained such that four reference surfaces S1 to S4 on Side B of the case lie in Reference Plane Z. The intersection of the three planes defines the centre of the location hole. The centre of the alignment hole shall lie on the intersection of Reference Planes X and Z. Refer to annex A. A dimension of a feature referenced to one of the planes is the shortest distance from the feature to the plane. Side A of the Type 1 case is referred to the three orthogonal Reference Planes X, Y' and Z', where -
8.1
Y' is a plane parallel to Reference Plane Y at a nominal distance of 102,0 mm, Z' is a plane parallel to Reference Plane Z at a nominal distance of 8,0 mm.
Dimensions of the Type 1 case The dimensions of the Type 1 case shall be measured in the test environment. The dimensions of the case in an operating environment can be estimated from the dimensions specified in this clause.
- 5 -
8.1.1
Overall dimensions (Figure 3) The total length of the case shall be L101 = 135,5 mm ± 0,4 mm. The distance from the top of the case to Reference Plane X shall be + 0,3 mm
L102 = 112,5 mm
0,2 mm
with the width L103 = 3,6 mm min. from the left-hand and right-hand edges of the case. The distance from the bottom of the case to Reference Plane X shall be L104 = 23,0 mm ± 0,2 mm. The total width of the case shall be + 0,0 mm
L105 = 124,6 mm
0,5 mm.
The distance from the left-hand side of the case to Reference Plane Y shall be + 0,2 mm
L106 = 113,3 mm
0,4 mm.
The distance from the right-hand side of the case to Reference Plane Y shall be + 0,1 mm
L107 = 11,3 mm
0,3 mm.
The two corners of the top shall be rounded with a radius R101 = 4,0 mm ± 0,2 mm centred at L108 = 4,0 mm ± 0,1 mm from the edge of the case and L109 = 3,5 mm ± 0,1 mm from the top of the case. The two corners of the bottom shall be rounded with a radius R102 = 4,0 mm ± 0,2 mm. In the zones delimited by L110 = 6,0 mm from the left-hand and right-hand edges of the case, there shall be the continuous guide areas running from the top to Reference Plane X of the case, with a width L111 = 0,8 mm min. the thickness of the case shall be + 0,2 mm
L112 = 8,0 mm
0,1 mm.
The eight long edges of the case shall be rounded with a radius R103 = 0,5 mm ± 0,1 mm.
- 6 -
8.1.2
Location hole (Figure 3) The centre of the location hole shall coincide with the intersection of Reference Planes X, Y and Z. The diameter of the hole shall be + 0,05 mm
D101 = 4,00 mm
0,00 mm
its depth shall be L113 = 1,2 mm min. The room below the location hole shall be free up to L114 = 5,0 mm min. below Reference Plane Z The diameter of the free room shall be at least equal to D101. The lead-in edges shall be rounded with a radius R104 = 0,5 mm ± 0,1 mm. 8.1.3
Alignment hole (Figure 3) The centre of the alignment hole shall lie on the intersection of the Reference Planes X and Z at a distance L115 = 102,0 mm ± 0,2 mm from Reference Plane Y. The alignment hole shall have a substantially rectangular shape. Its dimensions shall be + 0,05 mm
L116 = 4,00 mm
0,00 mm + 0,2 mm
L117 = 5,6 mm
0,0 mm
its depth shall be equal to L113. The room below the alignment hole shall be free up to at least L114. The dimensions of the free room shall be at least L116 and L117. The lead-in edges shall be rounded with a radius R104. 8.1.4
Reference surfaces (Figure 4) There shall be four reference surfaces S1, S2, S3 and S4 on Side B of the case. Surfaces S1 and S2 shall be circular with a diameter D102 = 7,0 mm min. S1 shall be centred on the location hole, and S2 shall be centred on the alignment hole. Surfaces S3 and S4 shall be rectangular with dimensions L118 = 8,2 mm max. L119 = 110,2 mm max. from Reference Plane Y and L120 = 87,0 mm max. L121 = 108,0 mm min. from Reference Plane X, except in the areas of the detents for autoloading.
8.1.5
Insertion slots (Figure 5) The case shall have two symmetrical insertion slots.
- 7 -
The bottom of the slots shall be at a distance L123 = 60,0 mm ± 0,2 mm from Reference Plane X. The depth measured from the edge of the case shall be + 0,2 mm
L124 = 2,0 mm
0,0 mm.
The side of the insertion slots parallel to Reference Plane Z shall be at a distance L125 = 2,5 mm ± 0,1 mm from Reference Plane Z. The width of the insertion slots shall be + 0,2 mm
L126 = 3,0 mm
0,0 mm.
The slots shall have a lead-in slope defined by L127 = 7,0 mm ± 0,2 mm from the top of the case and an angle
101 = 7,5 ± 1,0. 8.1.6
Detents (Figure 5) The case shall have two symmetrical detents intended for autoloading. The detents shall be through Side A and Side B. The position and dimensions of the detents are specified by R105 = 0,5 mm max. L128 = 100,5 mm ± 0,3 mm L129 = 93,0 mm ± 0,3 mm L130 = 3,3 mm ± 0,1 mm L131 = 2,5 mm ± 0,1 mm. The outside edges of the detents shall be rounded off with a radius R106 = 0,5 mm ± 0,1 mm. The bottom of the case shall have two symmetrical detents intended for clamping a cartridge in case of vertical use. Their dimensions shall be L132 = 3,0 mm ± 0,1 mm L133 = 3,0 mm ± 0,1 mm L134 = 1,0 mm ± 0,1 mm The centre of one of these detents lies on Reference Plane Y, the centre of the other is at a distance L135 = 102,0 mm ± 0,3 mm from Reference Plane Y. Both centres are at a distance L136 = 4,0 mm ± 0,1 mm from Reference Plane Z.
8.1.7
Gripper slots (Figure 5) The case shall have two symmetrical gripper slots. The slots shall be through Sides A and B. Each slot shall have a depth of
- 8 -
+ 0,3 mm
L137 = 3,0 mm
0,0 mm
from the edge of the case and a width of + 0,3 mm
L138 = 4,0 mm
0,0 mm.
The upper edge of the slot shall be at + 0,0 mm
L139 = 11,0 mm
0,3 mm
from Reference Plane X. The corners of the slot shall be rounded off by a radius R107 = 0,5 mm ± 0,2 mm. 8.1.8
Write-inhibit hole (Figure 6) The case with a two-sided disk shall have a write-inhibit hole on both Sides A and B. The case with a one-sided disk shall have a write-inhibit hole on Side B only. The write-inhibit hole shall have a device for opening and closing the hole. The hole at the right-hand side of Side B of the case, is the write-inhibit hole for Side A of the disk. The protected side of the disk shall be identified either by an indication on the case or by the fact that the device for Side A of the disk can only be operated from Side A of the case. When writing and erasing on Side A of the disk are not allowed, the write-inhibit hole shall be open. It shall have a diameter D103 = 3,0 mm min. The position of its centre shall be specified by L140 = 18,5 mm ± 0,2 mm L141 = 9,0 mm ± 0,2 mm on Side B of the case. The hole shall extend below Reference Plane Z by L142 = 5,0 mm min. with a diameter equal at least to D103. When writing and erasing of the disk are allowed, the write-inhibit hole shall be closed by the write protect device. The write protect device shall not be recessed from Reference Plane Z by more than 0,3 mm.
8.1.9
Sensor holes (Figure 6) The case shall have three sensor holes on Side B. The set of holes on Side B of the case, A1, A2 and A3 pertains to Side A of the disk. The holes shall have a diameter of D104 = 3,0 mm min. and the positions of their centres shall be specified by L140 and L144 = 7,5 mm ± 0,2 mm L145 = 3,5 mm ± 0,2 mm L146 = 2,0 mm ± 0,2 mm. The room below the holes shall be free up to L147 = 5,0 mm min. Reference Plane Z
- 9 -
The diameter of the free room shall be at least equal to D104. The holes are permitted to extend through Side A. When a hole for Side A of the disk is closed, the closure shall not be recessed from Reference Plane Z by more than 0,3 mm. Side A of the case shall have corresponding sensor holes B1, B2 and B3 with the diameter D104. The functions of the sensor holes are specified in table 1. Table 1 - Use of the sensor holes
Sensor hole
Function Closed
A1
Open
The original disk has The original disk has been taken not been taken out out or a disk has been put in
A2
Active side
Non active side
Case for a Case for a two-sided disk one-sided disk Closed
Closed
Closed
Closed
A3
Reserved
Closed
Closed
B1
The original disk has The original disk has been taken not been taken out out or a disk has been put in
Closed
Closed
Closed
Open
Closed
Closed
B2
Active side
B3 8.1.10
Condition
Non active side Reserved
Sensing areas (Figure 6) The case shall have two sensing areas on Side B used by drives for the detection of a cartridge. The first area shall be limited by Reference Planes X and Y, the bottom and the right-side of the case. The second area shall be limited by Reference Plane X, a plane parallel to Reference Plane Y at a distance equal to L115, the bottom and the left-hand side of the case. These areas may be recessed from Reference Plane Z by 0,3 mm max., except for the reference surfaces S1 and S2, the gripper slots and the sensor holes.
8.1.11
Spindle and head windows (Figure 7) The dimensions of the window are referenced to a centreline, located at a distance L150 = 51,0 mm ± 0,1 mm from Reference Plane Y. The width of the window from the top of the case to L151 = 50,0 mm max. shall be + 0,2 mm
L152 = 19,5 mm
0,0 mm
and + 0,2 mm
L153 = 19,5 mm
0,0 mm.
The top of the window shall be specified by R108 = 60,7 mm min. originating from the intersection of L150 and L154 = 40,0 mm ± 0,1 mm. The width of the window from L151 to L154 shall be given by L155 = 17,0 mm min.
- 10 -
and L156 = 17,0 mm min. The bottom of the window shall be the arc of the semi-circle which smoothly joins the sides of the window, specified by a radius R109 = 17,0 mm min. and its centre shall be defined by the intersection of L150 and L154. The area bounded by R108 and top of the case shall be recessed from Reference Plane Z by L157 = 2,55 mm min. over the width of window. 8.1.12
Shutter shape (Figure 8) The case shall have a spring-loaded shutter completely covering the spindle and head windows when the case is not inside a drive. The shutter shall be free to slide in a recessed area of the case. The shutter shall not protrude beyond Reference Planes Z or Z' by more than 0,15 mm. When introduced into a drive, the shutter shall be moved so as to uncover the spindle and head windows. It shall have a pair of guide and edges against which the shutter opening mechanism of the drive can act to open the shutter. The shutter can be shifted rightwards or leftwards. Both guide edges shall be located at + 0,2 mm
L158 = 112,0 mm
0,4 mm.
from Reference Plane X. When the shutter is closed, the right-hand opener edge shall be at L159 = 38,0 mm ± 0,4 mm and the left-hand opener edge shall be L160 = 64,0 mm ± 0,4 mm. from Reference Plane Y. The depth of each opener edge shall be + 0,2 mm
L161 = 3,0 mm
0,0 mm
from L158 and the top shall be rounded off with a radius R110 = 0,5 mm max. The length of the guide edges measured from the corresponding opener edge shall be L162 = 7,0 mm min. The intersection of the guide edges and the opener edges shall be rounded with a radius R111 = 0,5 mm max. Other corners of the guide and opener edges shall be rounded with a radius R112 = 1,0 mm max. 8.1.13
Path for shutter opener (Figures 9 and 10) When the shutter is moved rightwards until the left opener edge is at a distance L163 = 26,5 mm, from Reference Plane Y, the windows shall be open over
- 11 -
L164 = 16,5 mm min. from L150 and over an arc of R113 = 17,0 mm min. originating at the intersection of L150 and L154. The left opener edge shall be at L165 = 26,0 mm max. from Reference Plane Y, when the shutter is in its right-hand end position. When corresponding the position of the right opener edge is L166 = 75,5 mm, the windows shall be open at L164 from L150 and with a radius R113 originating at the intersection of L150 and L154. The position of the right opener edge shall be L167 = 76,0 mm min. when the shutter is in its left-hand end position. 8.1.14
Label area (Figure 11) The case shall have three label areas on Side A and Side B and on the bottom side, with dimensions Sides A and B: L168 = 10,0 mm ± 0,2 mm L169 = 13,0 mm ± 0,2 mm L170 = 76,0 mm ± 0,3 mm R114 = 2,0 mm ± 0,2 mm Bottom: L171 = 13,0 mm ± 0,2 mm L172 = 76,0 mm ± 0,3 mm L173 = 5,0 mm ± 0,2 mm L174 = 97,0 mm ± 0,3 mm L175 = 1,0 mm ± 0,2 mm L176 = 6,0 mm ± 0,2 mm. The label area shall be recessed by 0,2 mm min. on all three sides.
8.1.15
Identification marks for Sides A and B (Figure 12) Side A and Side B shall be identified by an identification mark provided on a concave part on the right-hand side of Side A and Side B, respectively. On Side A, this concave part presents a small round projection, on Side B two such projections are provided. The position and dimensions of these identification marks shall be as follows. Side A: + 0,1 mm
R115 = 0,5 mm
0,0 mm
R116 = 18,0 mm ± 1,0 mm + 0,1 mm
L178 = 0,5 mm
0,0 mm
L179 = 7,0 mm ± 0,3 mm
- 12 -
L180 = 5,0 mm ± 0,3 mm + 0,1 mm
L181 = 0,6 mm
0,0 mm
Side B: + 0,1 mm
R115 = 0,5 mm
0,0 mm
R116 = 18,0 mm ± 1,0 mm + 0,1 mm
L178 = 0,5 mm
0,0 mm
L179 = 7,0 mm ± 0,3 mm L180 = 5,0 mm ± 0,3 mm + 0,1 mm
L181 = 0,6 mm
0,0 mm
L182 = 3,2 mm ± 0,3 mm.
- 13 -
Y L R101
L
L
11 0 L 108
103 L 108
103 R 101
L1 0 9
L101
L
11 0
L
R 103
R
R 103
R103
103
L109
L
111
111
L1 0 2
L
L1 0 4
X
11 6
D101
A
A
R102 L
R1 0 2
L
11 7
107
L
11 5 L1 0 6 L R
Z
105 R
103
103
Z
L 11 2 R 103
R 103 R1 0 4
L
11 4
R
104
L 11 3
L 11 3
S ec tio n A -A (L a rg er sca le ) 97-00 95-A
Figure 3 - Overall dimensions
L
11 4
Z
- 14 -
Y
S4
S3
L
L 11 8 11 9
L1 2 1
L1 2 0
D
S2
S1
102
D 102
L
11 5
97-0096-A
Figure 4 - Reference surfaces
X
- 15 -
L 12 6
α 10 1 L
Z
Y
α10 1
L
13 1
L 12 4
12 7 R
L 13 0
L
L 12 5
10 6
R
10 5
12 8 L 12 9 L 12 3 X
R L
10 7
13 9
R
10 7
L 13 8 L
13 7
Y
Z B L
L13 3
13 5
L 13 2
L 13 2
B
L 13 4
S e ction B -B (L a rg er sca le ) 97 -00 97-A
Figure 5 - Insertion slots, detents and gripper slots
L
Z 13 3 L13 6
- 16 -
Y
S id e B
L
14 4 L 14 0
X
A1 C D10 3
D
A2 A3 D 10 4 D C L
14 6
L 14 1 Y
L 14 5
Y’
S id e A
L
L 14 4 14 0
B 1
D
B2
B3 D
10 4 L 14 6 L 14 5 L 14 1
10 3
Z
Z
D 10 3
D 10 3
L Section C -C (L arger scale ) W riting perm itted
Z
14 2 Section C -C (L arger scale ) W riting inhib ited
Z D 10 4
L Section D -D (L arger scale ) C losed
14 7
Section D -D (L arger scale ) O pen
Figure 6 - Write-inhibit hole, sensor holes and sensing areas
X
- 17 -
L1 5 7
Z L
153
R
L
L
Y
152
108
L
156
155
L R
L
109
151
154 X
L
150
97-0099-A
Figure 7 - Spindle and head windows
- 18 -
R
11 2 R 11 2
L 162 L
160 L
159 L 162
F L Z
161
R 111
Y
S e ctio n F -F F
R
11 0
L1 5 8
X
97-0100-A
Figure 8 - Shape of the shutter
- 19 -
Y L1 6 3
L
164
R
11 3
L1 5 4
L
X
150 L 165
Y
X
97-0101-A
Figure 9 - Shutter in just right-hand open position (top) and maximum right-hand open position (bottom)
- 20 -
L 166
Y
L 164
R
11 3 L 154
X
L1 5 0
L
167
Y
X
97-0102-A
Figure 10 - Shutter in just left-hand open position (top) and maximum left-hand open position (bottom)
- 21 -
Y
L1 6 8 X
R11 4
L 169
L 170
L
L1 7 6
L1 7 5
174
L1 7 2
97-0103-A
Figure 11 - Label areas
L
171
L173
Z
- 22 -
Y
Y
L 17 9
H
Y'
X
X L17 9
G
H
L18 0
L18 0 Sid e B
R
116
G
Sid e A
R 115
R 115
L 17 8
R L 18 1
116
R 115
L 18 2
S ection H -H (L arger scale)
S ection G -G (L arger s cale)
97 -01 04-A
Figure 12 - Identification marks of Side A and B
L 17 8
L 18 1
- 23 -
8.2
Dimensions of the Type 2 case The dimensions of the Type 2 case shall be measured in the test environment (see 7.1.1). The dimensions of the case in an operating environment (see 7.1.2) can be estimated from the dimensions specified in this clause.
8.2.1
Overall dimensions (Figure 13) The total length of the case shall be L201 = 135,5 mm ± 0,4 mm. The distance from the top of the case to Reference Plane X shall be + 0,3 mm
L202 = 112,5 mm
0,2 mm
with the width L203 = 3,6 mm min. from the left-hand and right-hand edges of the case. The distance from the bottom of the case to Reference Plane X shall be L204 = 23,0 mm ± 0,2 mm. The total width of the case shall be + 0,0 mm
L205 = 124,6 mm
0,5 mm.
The distance from the left-hand side of the case to Reference Plane Y shall be + 0,2 mm
L206 = 113,3 mm
0,4 mm.
The distance from the right-hand side of the case to Reference Plane Y shall be + 0,1 mm
L207 = 11,3 mm
0,3 mm.
The two corners of the top shall be rounded with a radius R201 = 4,0 mm ± 0,2 mm centred at L208 = 4,0 mm ± 0,1 mm from the edge of the case and L209 = 3,5 mm ± 0,1 mm from the top of the case. The two corners of the bottom shall be rounded with a radius R202 = 4,0 mm ± 0,2 mm. In the zones delimited by L210 = 6,0 mm from the left-hand and right-hand edges of the case, there shall be the continuous guide areas running from the top to Reference Plane X of the case, with a width L211 = 0,8 mm min.
- 24 -
the thickness of the case shall be + 0,2 mm
L212 = 8,0 mm
0,1 mm.
The eight long edges of the case shall be rounded with a radius R203 = 0,5 mm ± 0,1 mm. L210 and L211 shall be defined on Side A as well as Side B. 8.2.2
Location hole (Figure 13) The centre of the location hole shall coincide with the intersection of Reference Planes X, Y and Z. The diameter of the hole shall be + 0,05 mm
D201 = 4,00 mm
0,00 mm
its depth shall be L213 = 1,2 mm min. The room below the location hole shall be free up to L214 = 5,0 mm min. below Reference Plane Z The diameter of the free room shall be at least equal to D201. The lead-in edges shall be rounded with a radius R204 = 0,5 mm ± 0,1 mm. 8.2.3
Alignment hole (Figure 13) The centre of the alignment hole shall lie on the intersection of the Reference Planes X and Z at a distance L215 = 102,0 mm ± 0,2 mm from Reference Plane Y. The alignment hole shall have a substantially rectangular shape. Its dimensions shall be + 0,05 mm
L216 = 4,00 mm
0,00 mm + 0,2 mm
L217 = 5,6 mm
0,0 mm
its depth shall be equal to L213. The room below the alignment hole shall be free up to at least L214. The dimensions of the free room shall be at least L216 and L217. The lead-in edges shall be rounded with a radius R204. 8.2.4
Reference surfaces (Figure 14) There shall be four reference surfaces S1, S2, S3 and S4 on Side B of the case. Surfaces S1 and S2 shall be circular with a diameter D202 = 7,0 mm min. S1 shall be centred on the location hole, and S2 shall be centred on the alignment hole. Surfaces S3 and S4 shall be rectangular with dimensions L218 = 8,2 mm max. L219 = 110,2 mm max.
- 25 -
from Reference Plane Y and L220 = 87,0 mm max. L221 = 108,0 mm min. from Reference Plane X, except in the areas of the detents for autoloading. 8.2.5
Insertion slot (Figure 15) The case shall have an insertion slot on its right-hand side. The bottom of the slots shall be at a distance L223 = 60,0 mm ± 0,2 mm from Reference Plane X. The depth measured from the edge of the case shall be + 0,2 mm
L224 = 2,0 mm
0,0 mm.
The side of the insertion slot parallel to Reference Plane Z shall be at a distance L225 = 2,5 mm ± 0,1 mm from Reference Plane Z. The width of the insertion slot shall be + 0,2 mm
L226 = 3,0 mm
0,0 mm.
The slots shall have a lead-in slope defined by L227 = 7,0 mm ± 0,2 mm from the top of the case and an angle
201 = 7,5 ± 1,0. 8.2.6
Detents (Figure 15) The case shall have two symmetrical detents intended for autoloading. The detents shall not extend through Side A. The position and dimensions of the detents are specified by R205 = 0,5 mm max. L228 = 100,5 mm ± 0,3 mm L229 = 93,0 mm ± 0,3 mm L230 = 3,3 mm ± 0,1 mm L231 = 2,5 mm ± 0,1 mm. The outside edges of the detents shall be rounded off with a radius R206 = 0,5 mm ± 0,1 mm. The depth of the detents shall be L232 = 6,5 mm ± 0,2 mm. The bottom of the case shall have two symmetrical detents intended for clamping a cartridge in case of vertical use. Their dimensions shall be L233 = 3,0 mm ± 0,1 mm L234 = 3,0 mm ± 0,1 mm L235 = 1,0 mm ± 0,1 mm
- 26 -
The centre of one of these detents lies on Reference Plane Y, the centre of the other is at a distance L236 = 102,0 mm ± 0,3 mm from Reference Plane Y. Both centres are at a distance L237 = 4,0 mm ± 0,1 mm from Reference Plane Z. 8.2.7
Gripper slots (Figure 15) The case shall have two symmetrical gripper slots. The slots shall not extend through Side A. Each slot shall have a depth of + 0,3 mm
L238 = 3,0 mm
0,0 mm
from the edge of the case and a width of + 0,3 mm
L239 = 4,0 mm
0,0 mm.
The upper edge of the slot shall be at + 0,0 mm
L240 = 11,0 mm
0,3 mm
from Reference Plane X. The corners of the slot shall be rounded off by a radius R207 = 0,5 mm ± 0,2 mm. The depth of the gripper slots shall be L241 = 6,5 mm ± 0,2 mm. 8.2.8
Write-inhibit hole (Figure 16) The case shall have a write-inhibit hole on Side B. The write-inhibit hole shall have a device for opening and closing the hole. When writing and erasing on Side A of the disk are not allowed, the write-inhibit hole shall be open. It shall have a diameter D203 = 3,0 mm min. The position of its centre shall be specified by L242 = 18,5 mm ± 0,2 mm L243 = 9,0 mm ± 0,2 mm on Side B of the case. The hole shall extend below Reference Plane Z by L244 = 5,0 mm min. with a diameter equal at least to D203. When writing and erasing of the disk are allowed, the write-inhibit hole shall be closed by the write protect device. The write protect device shall not be recessed from Reference Plane Z by more than 0,3 mm.
8.2.9
Sensor holes (Figure 16) The case shall have three sensor holes on Side B. The set of holes on Side B of the case, A1, A2 and A3 pertains to Side A of the disk. The holes shall have a diameter of
- 27 -
D204 = 3,0 mm min. and the positions of their centres shall be specified by L242 and L246 = 7,5 mm ± 0,2 mm L247 = 3,5 mm ± 0,2 mm L248 = 2,0 mm ± 0,2 mm. The room below the holes shall be free up to L249 = 5,0 mm min. above Reference Plane Z. The diameter of the free room shall be at least equal to D204. The holes are permitted to extend through Side A. When a hole for Side A of the disk is closed, the closure shall not be recessed from Reference Plane Z by more than 0,3 mm. The sensor hole A1 shall indicate whether a disk has been taken out once or not. Originally, the sensor hole A1 shall be closed. And once a disk has been taken out of the case, this hole shall be opened and never closed again. The functions of the sensor holes are specified in table 2. Table 2 - Use of the sensor holes
Sensor hole
Function Closed
A1 A2
Open
The original disk has The original disk has been taken not been taken out out, or a disk has been put in Active side
A3 8.2.10
Condition
Non active side Reserved
Closed / Open Closed Closed
Sensing areas (Figure 16) The case shall have two sensing areas on Side B used by drives for the detection of a cartridge. The first area shall be limited by Reference Planes X and Y, the bottom and the right-side of the case. The second area shall be limited by Reference Plane X, a plane parallel to Reference Plane Y at a distance equal to L215, the bottom and the left-hand side of the case. These areas may be recessed from Reference Plane Z by 0,3 mm max., except for the reference surfaces S1 and S2, the gripper slots and the sensor holes.
8.2.11
Spindle and head windows (Figure 17) The dimensions of the window are referenced to a centreline, located at a distance L252 = 51,0 mm ± 0,1 mm from Reference Plane Y. The width of the window from the top of the case to L253 = 50,0 mm max. shall be + 0,2 mm
L254 = 19,5 mm
0,0 mm
and + 0,2 mm
L255 = 19,5 mm
0,0 mm.
The top of the window shall be specified by R208 = 60,7 mm min.
- 28 -
originating from the intersection of L250 and L256 = 40,0 mm ± 0,1 mm. The width of the window from L253 to L256 shall be given by L257 = 17,0 mm min. and L258 = 17,0 mm min. The bottom of the window shall be the arc of the semi-circle which smoothly joins the sides of the window, specified by a radius R209 = 17,0 mm min. and its centre shall be defined by the intersection of L252 and L256. The area bounded by R208 and top of the case shall be recessed from Reference Plane Z by L259 = 2,55 mm min. L260 = 5,65 mm max. over the width of window. 8.2.12
Shutter shape (Figure 18) The case shall have a spring-loaded shutter completely covering the spindle and head windows when the case is not inside a drive. The shutter shall be free to slide in a recessed area of the case. The shutter shall not protrude beyond Reference Planes Z or Z' by more than 0,15 mm. When introduced into a drive, the shutter shall be moved so as to uncover the spindle and head windows. It shall have a pair of guide and edges against which the shutter opening mechanism of the drive can act to open the shutter. The shutter can be shifted rightwards or leftwards. Both guide edges shall be located at + 0,2 mm
L261 = 112,0 mm
0,4 mm.
from Reference Plane X. When the shutter is closed, the right-hand opener edge shall be at L262 = 38,0 mm ± 0,4 mm and the left-hand opener edge shall be L263 = 64,0 mm ± 0,4 mm. from Reference Plane Y. The depth of each opener edge shall be + 0,2 mm
L264 = 3,0 mm
0,0 mm
from L261 and the top shall be rounded off with a radius R210 = 0,5 mm max. The length of the guide edges measured from the corresponding opener edge shall be L265 = 7,0 mm min. The intersection of the guide edges and the opener edges shall be rounded with a radius R211 = 0,5 mm max. Other corners of the guide and opener edges shall be rounded with a radius
- 29 -
R212 = 1,0 mm max. 8.2.13
Path for shutter opener (Figure 19 and 20) When the shutter is moved rightwards until the left opener edge is at a distance L266 = 26,5 mm, from Reference Plane Y, the windows shall be open over L267 = 16,5 mm min. from L252 and over an arc of R213 = 17,0 mm min. originating at the intersection of L252 and L256. The left opener edge shall be at L268 = 26,0 mm max. from Reference Plane Y, when the shutter is in its right-hand end position. When corresponding the position of the right opener edge is L269 = 75,5 mm, the windows shall be open at L267 from L252 and with a radius R213 originating at the intersection of L252 and L256. The position of the right opener edge shall be L270 = 76,0 mm min. when the shutter is in its left-hand end position.
8.2.14
Label area (Figure 21) The case shall have three label areas on Side A and Side B and on the bottom side, with dimensions Sides A and B: L271 = 10,0 mm ± 0,2 mm L272 = 13,0 mm ± 0,2 mm L273 = 76,0 mm ± 0,3 mm R214 = 2,0 mm ± 0,2 mm Bottom: L274 = 13,0 mm ± 0,2 mm L275 = 76,0 mm ± 0,3 mm L276 = 5,0 mm ± 0,2 mm L277 = 97,0 mm ± 0,3 mm L278 = 1,0 mm ± 0,2 mm L279 = 6,0 mm ± 0,2 mm. The label area shall be recessed by 0,2 mm min. on all three sides.
8.2.15
Identification mark for Side A (Figure 22) Side A shall be identified by an identification mark consisting of a small round projection provided in a concave part on the right-hand side of Side A. The position and dimensions of this identification mark shall be as follows. + 0,1 mm
R215 = 0,5 mm
0,0 mm
R216 = 18,0 mm ± 1,0 mm
- 30 -
+ 0,1 mm
L281 = 0,5 mm
0,0 mm
L282 = 7,0 mm ± 0,3 mm L283 = 5,0 mm ± 0,3 mm + 0,1 mm
L284 = 0,6 mm 8.2.16
0,0 mm
Opening and opening cover for taking the disk out of the case Type 2 case shall have an opening closed by a cover. In the original condition the case contains a disk and the cover is locked in closed position. Sensor hole A1 shall be closed. In order to take out the disk, sensor hole A1 shall be opened, then the cover can be opened and the disk removed from the case. Once sensor hole A1 has been opened, it always remains open whether or not the same disk or an other disk has been introduced into the case. This ECMA Standard does not specify the design of the opening and of the cover. They should be designed so as not to damage the disk. An example of a cover is shown in annex D.
- 31 -
Y
R
L
L2 1 0 L2 0 8
201
L
210 L2 0 3 R L 203 208
203 R 201
L 209
L 201
L
L
L 2 11
R
203
209
L 2 11
202
L
L2 0 4
216
D
R
A
R 202
R
A
202
L2 1 7
X 201
L2 0 7 L
215
R2 0 3
L2 0 6
Z
L205
R
203
203
R2 0 3
Z
L2 1 2 R
R
203 R
L2 1 4
R
204
203
204
L2 1 3
Z L2 1 3
S ectio n A -A (L arg er scale ) 97-01 05-A
Figure 13 - Overall dimensions
L2 1 4
- 32 -
Y
S4
S4
L L 219 L
218
221
L 220
S4
S4
D 202
D
L
215
97-0106-A
Figure 14 - Reference surfaces
20 2
X
- 33 -
L226 L
225
Z Z L 232
L231 L
L 228
L
Y
α2 0 1
224
L2 2 7
R2 0 6 R 2 0 5
230
L 229 L 223 X
R
207 R 207
L2 4 0 L
L
241
239
L2 3 8
Y L
L234
B
236
L 234
L2 3 3
L2 3 3 L
B
235
S ec tio n B -B (L a rg e r sc ale) 97-0107-A
Figure 15 - Insertion slot, detents and gripper slots
L 237
Z
α2 0 1
- 34 -
Y
S id e B
L
L
246
X 242
A1 C D 203
D
A2 A3 D 204 D C
L 248 L 247 L 243
Z
Z D 203
D
L S ectio n C -C (L arg er scale) W riting p erm itted
Z
203
244 S ectio n C -C (L arg er scale) W riting in hibited
Z D 204
L S ectio n D -D (L arg er scale) C lo sed
249
S ectio n D -D (L arg er scale) O p en
97-0108-A
Figure 16 - Write-inhibit hole, sensor holes and sensing areas
- 35 -
L
L 255
L
L
259
254
260
Y
Z
R208 L2 5 8
S id e B L2 5 7
R 209
L 256
L
253
X
L2 5 2 Y
L
L
254
255
R2 0 8 L 257 R
L
S id e A L2 5 8
209
252
97-0109-A
Figure 17 - Spindle and head windows
L
L 256
253 X
- 36 -
R2 1 2 L2 6 5
R212
L 263 L262
F Z
L264
L2 6 5
R 2 11
Y
S e ctio n F -F F
L
R
210
261
X
97-0110-A
Figure 18 - Shape of the shutter
- 37 -
Y L2 6 6
L 267
R 213
L 256
X
L2 5 2
L 268
Y
X
97-0111-A
Figure 19 - Shutter in just right-hand open position (top) and maximum right-hand open position (bottom)
- 38 -
L
Y 269
L267
R
213 L
L
L270
256
X
252 Y
X
97-0112-A
Figure 20 - Shutter in just left-hand open position (top) and maximum left-hand open position (bottom)
- 39 -
Y
S id e B
L 271
R
L
X
214
273
L 272
L 277
L
279
L
L2 7 4
L2 7 5
Z
L2 7 6
278
Y
S id e A
L271
X
R214
L
272
L
273
97-0113-A
Figure 21 - Label areas
- 40 -
Y
L 282
G
X
G
L2 8 3 S id e A
R
216
R
215
L
281
L
284
S e ctio n G -G (L arger scale) 97-0114-A
Figure 22 - Identification mark of Side A
8.3
Dimensions of the Type 3 case The dimensions of the Type 3 case shall be measured in the test environment (see 7.1.1). The dimensions of the case in an operating environment (see 7.1.2) can be estimated from the dimensions specified in this clause. The dimensions of the case are identical with those of the Type 2 case. See 8.2. The following clauses specify different features from the Type 2 case.
- 41 -
8.3.1
Sensor holes The functions of the sensor holes are specified in table 3. Table 3 - Use of the sensor holes
Sensor hole
Function Closed
Open
A1
Not applicable
There may or may not be a disk within the case
Open
A2
Active side
Non active side
Closed
A3 8.3.2
Condition
Reserved
Closed
Opening and opening cover The case shall have an opening and an opening cover for taking a disk out or putting one in. The opening cover can be opened and closed freely. A sample of an opening cover is shown in annex D.
9 9.1
Mechanical characteristics Material The case shall be constructed from any suitable materials such that it meets the requirements of this ECMA Standard.
9.2
Mass The mass of the case without the disk shall not exceed 100 g.
9.3
Edge distortion The cartridge shall meet the requirement of the edge distortion test defined in annex B.
9.4
Compliance The case shall meet the requirement of the compliance (flexibility) test defined in annex C.
9.5
Shutter opening force The spring force on the shutter shall be such that the force required to open the shutter does not exceed 2,0 N. It shall be sufficiently strong to close a free-sliding shutter, irrespective of the orientation of the case.
10 10.1
Interface between the case used as cartridge and a drive Capture cylinder (Figure 23) The capture cylinder is defined as the volume within which the spindle can expect the centre of the disk hole to be, just prior to capture, and with the cartridge constrained as specified in 9.4. The size of the cylinder defines the permissible play of the disk inside its cavity in the case. The cylinder is referred to perfectly located and perfectly sized alignment and location pins in the drive; it includes the tolerances of those dimensions of the case and the disk which are between the two pins mentioned and the centre of the disk. The bottom of the cylinder shall be parallel to Reference Plane Z, and shall be located at a distance L301 = 2,1 mm min. above Reference Plane Z. The top of the cylinder is located at a distance L302 = 5,2 mm max. from Reference Plane Z. The diameter of the cylinder shall be D301 = 2,8 mm max.
- 42 -
and its centre shall be given by the nominal values of L150 and L154 of Type 1 case, or L254 and L258 of Type 2 and or Type 3 cases, in the drive.
L (= L ) 150 252
D 301
A
A L1 5 4 (= L 2 5 6 )
X
Y
L
97-0115-A
L 301 302
Z
S ectio n A -A (L arger scale) Figure 23 - Capture cylinder
10.2
Inner dimensions of the case (Figure 24) The inner space of the disk shall be such that the disk is not in contact with the case during operation. The inner shape of the case shall meet the following requirements. L303 = 2,2 mm max. L304 = 2,5 mm max.
- 43 -
L305 = 5,4 mm min. L306 = 5,7 mm min. measured from Reference Plane Z and R301 = 22,0 mm max. R302 = 60,7 mm min. from a centre given by the nominal values of L150 and L154 of Type 1 case, or L254 and L258 of Type 2 and Type 3 cases. L 1 5 0 (= L
252
)
B
L
B 150
(= L 2 5 6 ) X
Y R 302 L
306
L
305
R 301
S ection B -B (L arg er scale) 97 -0116-A
Figure 24 - Inner dimensions of the case
L
303 L 304
- 44 -
11 11.1
Orientation of the disk in the case Two-sided disk (Type 2S) in case Type 1 The disk surfaces are defined as Side A and Side B. Sides A and B of the case are identical as far as the features specified in this ECMA Standard are concerned. The two-sided disk (Type 2S) has no specific orientation in the case. Therefore, references to Sides A and B of the case can be changed to B and A respectively.
11.2
One-sided disk (Type 1S) in case Types 1, 2 and 3 A one-sided disk (Type 1S) has only one functional entrance surface defined as Side A. The disk shall be oriented in the case so that when Side A of the case faces upwards, Side A of the disk faces downwards.
- 45 -
Annex A (normative)
Position of the case relative to the Reference Planes
This annex shows the position of the case relative to the Reference Planes, as specified in 7.1.2.
Z
S4
C ase S id e B
S3
X
A lig n m e n t h o le
S1 S2 Y
L o ca tio n h o le 97-0117-A
Figure A.1 - Position of the case
- 46 -
- 47 -
Annex B (normative)
Edge distortion test
The distortion test checks if the case is free from unacceptable distortions and protrusions along its edges. The test is made by causing the cartridge to pass through the vertical slot of a gauge.
B.1
Test gauge specification The gauge shall be made of a suitable material, e.g. of chrome-plated carbon steel. The inner surfaces shall be polished to a surface finish of 5 µm peak-to-peak. The dimensions shall be as follows (figure B.1): La = 136,0 mm min. Lb = 125,0 mm ± 0,1mm Lc = 8,0 mm ± 0,1mm Ld = 8,30 mm ± 0,02mm Le = 8,8 mm min.
B.2
Requirements When the cartridge is inserted vertically into the gauge, a vertical force F1 of 1,5 N maximum (without the cartridge weight) applied to the centre of the top edge of the cartridge shall cause the cartridge to pass through the gauge.
- 48 -
Ld Lc
L
F1 Ld
a
Lc
97-0118-A
Figure B.1 - Distortion gauge
Ld
L
e
- 49 -
Annex C (normative)
Compliance test
The compliance test checks the flatness and flexibility of the case by forcing the four reference surfaces of the case into a plane. The test is made by placing the cartridge on the supports of a gauge and applying forces on the cartridge opposite to the supports.
C.1
Test gauge specification The test gauge consists of a base plate on which four posts P1, P2, P3 and P4 are fixed so as to correspond to the four surfaces S1, S2, S3 and S4, respectively (figure C.1]). The location of the four reference surfaces S1, S2, S3 and S4 is defined in 8.1.4 (figure 4) or 8.2.4 (figure 14). The dimensions are as follows (figure C.2): Posts P1 and P2 Da = 6,50 mm
± 0,01 mm + 0,02 mm
Db = 3,90 mm
0,00 mm
Lf = 0,5 mm
± 0,1 mm
Lg = 3,0 mm
± 0,1 mm
The top area of posts P1 and P2 has a chamfer. Posts P3 and P4 Dc = 5,00 mm ± 0,01 mm After assembly, both the upper annular surfaces with outer diameter Da of the two posts P1 and P2 and the upper surfaces of the two posts P3 and P4 shall lie between two horizontal planes spaced 0,01 mm apart. Positions of four posts P1, P2, P3 and P4 Each centre of posts P2, P3 and P4 shall be located at Lh = 102,0 mm
± 0,1 mm
Li = 11,0 mm
± 0,1 mm
Lj = 113,0 mm
± 0,1 mm
Lk = 90,0 mm
± 0,2 mm
from the centre of the post P1. The cartridge shall be placed with its reference surfaces onto the posts of the gauge placed horizontally. A vertical downward force F2 of 1,0 N shall be exerted on the cartridge opposite each of the four posts.
C.2
Requirements Under the conditions of C.1, three of the four surfaces S1 to S4 shall be in contact with the surface of their respective posts, and any gap between the remaining surface S and the surface of its post shall not exceed 0,1 mm.
- 50 -
F 2 F2
F 2
F 2
L h
L k
P1
P 3
P 2
Li
Lj
P 4 97-0119-A
Figure C.1 - Compliance gauge
Db Lf
Lg
Z Dc
Da P1 ,2
P3 ,4
97-0120-A
Figure C.2 - Detail of posts
- 51 -
Annex D (informative)
Examples of an opening cover for Type 2 or Type 3 cases
C o v er clo sed
C o v er o p en 97-0121-A
Figure D.1 - First example of an opening cover
- 52 -
H inge Area Shutter
H inge Area Shutter
C o v e r o p en
97 -0130-A
F ig u re D .2 - S e co n d ex a m p le o f a n o p en in g co v er
- 53 -
Annex E (informative)
Transportation
E.1
General As transportation occurs under a wide range of temperature and humidity variations, for differing periods, by many methods of transport and in all parts of the world it is not possible to specify conditions for transportation or for packaging.
E.2
Packaging The form of packaging should be agreed between sender and recipient or, in the absence of such agreement, is the responsibility of the sender. It should take account of the following hazards.
E.2.1
Temperature and Humidity Insulation and wrapping should be designed to maintain the conditions for storage over the estimated period of transportation.
E.2.2
Impact loads and vibration a) Avoid mechanical loads that would distort the shape of the case or cartridge. b) Avoid dropping the case or cartridge. c) Cases or cartridges should be packed in a rigid box containing adequate shock-absorbent material. d) The final box should have a clean interior and a construction that provides sealing to prevent the ingress of dirt and moisture.
.
.
.
Printed copies can be ordered from: ECMA 114 Rue du Rhône CH-1204 Geneva Switzerland Fax: Internet:
+41 22 849.60.01 [email protected]
Files can be downloaded from our FTP site, ftp.ecma.ch, logging in as anonymous and giving your E-mail address as password. This Standard is available from library ECMA-ST as a compacted, self-expanding file in MSWord 6.0 format (file E273-DOC.EXE) and as an Acrobat PDF file (file E273-PDF.PDF). File E273-EXP.TXT gives a short presentation of the Standard. Our web site, http://www.ecma.ch, gives full information on ECMA, ECMA activities, ECMA Standards and Technical Reports.
ECMA 114 Rue du Rhône CH-1204 Geneva Switzerland This Standard ECMA-273 is available free of charge in printed form and as a file. See inside cover page for instructions