BS 2782-4 Method 451C:1978
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 Determination of acetone-soluble matter (resin content of the material in the unmoulded state) of phenolic moulding materials
Hardcopy , PDF
15-01-1998
English
28-02-1978
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Gives a gravimetric method for determining amount of matter that can be extracted by acetone, at a temperature near its boiling point, from a sample of finely divided phenolic moulding material. Applies only to moulding materials based upon novolac resins and not to those based upon resins. The amount of acetone soluble matter is reported as the resin content, but it should be noted that, although the extract consists mainly of phenolic resin and hexamine, other acetone soluble components such as lubricants and colorants or natural resins from the filler are normally present and will therefore be reported as resin.
| Committee |
PRI/21
|
| DevelopmentNote |
REPLACES METHOD 401C OF BS 2782: 1970
|
| DocumentType |
Standard
|
| Pages |
8
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| BS 771:1992 | Specification for phenolic moulding materials |
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