scope:

Establishes a system of designation for vinyl chloride thermoplastic resins, which may be used as the basis for specifications. The types of vinyl chloride plastics are differentiated from each other by a classification system based on appropriate levels of the designatory properties: a) reducted viscosity b) apparent density c) retention on a 63 µm mesh sieve d) plasticizer absorption at room temperature (for general-purpose resins and filler resins only) e) the viscosity and the type of rheological behaviour of a standard paste ( for paste resins only) and on information about basic polymer parameters, polymerization processess and intended applications.