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sklademVydáno: 1999-04-15
BS 2782-4:Method 470B:1999
Methods of testing plastics. Chemical properties Determination of ash of polyalkylene terephthalates
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| Označení normy: | BS 2782-4:Method 470B:1999 |
| Počet stran: | 12 |
| Vydáno: | 1999-04-15 |
| ISBN: | 0 580 32220 3 |
| Status: | Standard |
DESCRIPTION
BS 2782-4:Method 470B:1999
This standard BS 2782-4:Method 470B:1999 Methods of testing plastics. Chemical properties is classified in these ICS categories:
- 83.080.20 Thermoplastic materials
This part of ISO 3451 specifies methods for determination of the ash of poly(ethylene terephthalate), poly(butylene terephthalate) and copolymers of the two, both filled and unfilled. The general procedures given in ISO 3451-1 are followed. For unfilled materials method A or method C of ISO 3451-1:1997 is used. For filled and glass-fibre reinforced materials method A of ISO 3451-1:1997 is used.
For glass-fibre filled materials, containing flame retardant, antimony trioxide, and/or other, volatilizable additives, for instance pigment zinc sulfide, a modification is incorporated to remove these as volatile bromine component(s).