BS 2782-4.451L(1980) : 1980 AMD 10253
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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METHODS OF TESTING PLASTICS - CHEMICAL PROPERTIES - DETECTION OF FREE AMMONIA IN PHENOLFORMALDEHYDE MOULDINGS
Published date
23-11-2012
Publisher
Superseded date
15-10-1998
Superseded by
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Gives a qualitative method of detecting the presence of free ammonia or other volatile bases in phenol-formaldehyde mouldings by the exposure of an indicator paper to the vapour from a powdered sample. May be used when the absence of free ammonia is a requirement. Covers principle, apparatus, preparation of test sample, procedure, expression of results and test report. BS AMD 10253 RENUMBERS STD
| Committee |
PRM/21
|
| DevelopmentNote |
Renumbered and superseded by BS EN ISO 172. Supersedes 79/51314 DC. (09/2005)
|
| DocumentType |
Standard
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| ISO 172:1978 | Identical |
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