Specifies two methods for the determination of the ash of poly(vinylchloride): method A: direct calcination at 850 grade Celsius until constant mass is reached, and method B sulfated ash with sulfuric acid treatment after combustion and final heating of the residue until constant mass is reached. Method B is recommended if lead compounds are present. The general procedures given in ISO 34511 shall be followed.
Revises
ISO 1270:1975
WITHDRAWN
ISO 3451-5:1989
95.99
Withdrawal of Standard
Aug 22, 2002
PUBLISHED
ISO 3451-5:2002
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