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.
Tämän julkaisun valmistelusta Suomessa vastaa Kemesta ry, puh. 040 820 4888.
Sisällysluettelo
Foreword
1 Scope
2 Normative reference
3 Principle
3.1 Method A (direct calcination)
3.2 Method B (calcination, with sulfuric acid treatment after combustion)
3.3 Method C (calcination, with sulfuric acid treatment before combustion)