
METHODS OF TESTING PLASTICS - CHEMICAL PROPERTIES - DETERMINATION OF ASH OF POLYALKYLENE TEREPHTHALATES
出版:British Standards Institution

专家解读视频
Defines methods determining ash of poly(ethylene terephthalates), poly(butylene terephthalate) and copolymers of the two, both filled and unfilled. Applicable for filled and glass-fibre reinforced materials,as in method A, and unfilled materials in methods A or C of ISO 3451-1:1997. For glass-fibre filled materials, containing flame retardant, antimony trioxide, and/or other, volitilizable additives, for instance pigment zinc sulfide, a modification is incorporated to remove these as volatile bromine component(s).
SNV ISO 3451-2 : 1998 - Identical