BS 903-A26:1995
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Physical testing of rubber Method for determination of hardness (hardness between 10 IRHD and 100 IRHD)
Hardcopy , PDF
01-01-2007
English
15-08-2001
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Committees responsible
National foreword
Introduction
Method
1. Scope
2. Normative references
3. Principle
4. Definitions
5. Apparatus
6. Test pieces
7. Time-interval between vulcanization and testing
8. Conditioning of test pieces
9. Temperature of test
10. Procedure
11. Number of readings
12. Expression of results
13. Precision
14. Test report
Annexes
A. (normative) Empirical relationship between
indentation and hardness
B. (informative) Guidance for using precision results
Tables
1. Forces and dimensions of apparatus
2. Minimum distance of point of contact from edge of
test piece
3. Conversion of values of D into international rubber
hardness degrees (IRHD) for use in method N
4. Conversion of values of D into international rubber
hardness degrees (IRHD) for use in method H
5. Conversion of values of D into international rubber
hardness degrees (IRHD) for use in method L
6. Type 1 precision, medium-hardness rubbers, method N
7. Type 1 precision, medium-hardness rubbers, method M
8. Type 1 precision, high-hardness rubbers, method N
9. Type 1 precision, high-hardness rubbers, method H
10. Type 1 precision, low-hardness rubber, method L
Figures
1. Range of applicability
A.1 Relationship between log 10E and hardness in IRHD
from 3 to 100
A.2 Relationship between log 10E and hardness in IRHD
from 3 to 40
A.3 Relationship between log 10E and hardness from 80
to 100
Specifies four methods for the determination of the hardness of vulcanized or thermoplastic rubber.
| Committee |
PRI/22
|
| DevelopmentNote |
Also Numbered as ISO 48 (09/2001) Supersedes 86/44631 DC, 98/122128 DC and BS 903-A26(1969) Reviewed and confirmed by BSI, May, 2005. (04/2005)
|
| DocumentType |
Standard
|
| Pages |
20
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| ISO 3383:1985 | Rubber — General directions for achieving elevated or subnormal temperatures for test purposes |
| ISO 4661-1:1993 | Rubber, vulcanized or thermoplastic Preparation of samples and test pieces Part 1: Physical tests |
| ISO 1826:1981 | Rubber, vulcanized Time-interval between vulcanization and testing Specification |
| ISO 471:1995 | Rubber Temperatures, humidities and times for conditioning and testing |
| ISO/TR 9272:2005 | Rubber and rubber products Determination of precision for test method standards |
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