BS 7164-21:1996
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Chemical tests for raw and vulcanized rubber Determination of nitrogen content
Hardcopy , PDF
31-10-2014
English
15-06-1996
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Committees responsible
National foreword
Method
1 Scope
2 Normative references
3 Principle
4 Macro-method
5 Semi-micro method
6 Precision
7 Test report
Annex
A (informative) Guidance for using precision results
Tables
1 Type 1 precision - Blended-sample testing
2 Type 1 precision - Unblended-sample testing
Figures
1 Assembly of digestion apparatus for the semi-micro method
2 Exhaust tube for the semi-micro method
3 Digestion flasks for the semi-micro method
4 Assembly of distillation apparatus for the semi-micro
method
5 Distillation flask for the semi-micro method
6 Trap for the semi-micro method
7 Condenser jacket for the semi-micro method
8 Drip funnel for the semi-micro method
9 Condensor tube for the semi-micro method
Gives a macro-and semi-micro method for determining nitrogen in raw natural arubber and natural rubber latex using variations of the Kjeldahl process.
| Committee |
PRI/22
|
| DevelopmentNote |
Supersedes 94/306087 DC and BS 7164-21(1990) (09/2005)
|
| DocumentType |
Standard
|
| Pages |
20
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| BS 6057-2:1987 | Rubber latices Sampling |
| ISO/TR 9272:2005 | Rubber and rubber products Determination of precision for test method standards |
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