Plastics. Determination of ash - Poly(vinyl chloride) Ingestion-build-100998 BS 7405 is an international

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Plastics. Determination of ash - Poly(vinyl chloride) Ingestion-build-100998 BS 7405 is an international1 Scope This part of ISO 3451 specifies three methods for the determination of the ash of poly(vinyl chloride). The general procedures given in ISO 3451 1 are followed. For ash, method A is used. For sulfated ash, methods B and C are used. All three methods are applicable to resins, compounds and finished products. Methods B and C are applicable when lead containing compounds are present.