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1.1 This specification covers the establishment of requirements for homopolymers of vinyl chloride in original powder form intended for subsequent mixing and processing in thermoplastic compositions. These resins have a nominal specific gravity of 1.4 and a theoretical chlorine content of 56.8 %.
1.2 Two types of resin have been recognized: general purpose and dispersion. When mixed with the customary amount of plasticizer, general-purpose resins yield a dry or moist powder while dispersion resins yield a liquid slurry. Since many resins are polymerized to meet special requirements, a system of classification has been provided that permits a wide choice of grades.
1.3 The values stated in SI units are to be regarded as the standard.
1.4 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Note 1—This standard and ISO 1264 – 1980 address the same subject matter, but differ in technical content (and results cannot be directly compared between the two test methods.)
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D281 Test Method for Oil Absorption of Pigments by Spatula Rub-out
D495 Test Method for High-Voltage, Low-Current, Dry Arc Resistance of Solid Electrical Insulation
D883 Terminology Relating to Plastics
D1125 Test Methods for Electrical Conductivity and Resistivity of Water
D1243 Test Method for Dilute Solution Viscosity of Vinyl Chloride Polymers
D1600 Terminology for Abbreviated Terms Relating to Plastics
D1823 Test Method for Apparent Viscosity of Plastisols and Organosols at High Shear Rates by Extrusion Viscometer
D1824 Test Method for Apparent Viscosity of Plastisols and Organosols at Low Shear Rates
D1895 Test Methods for Apparent Density, Bulk Factor, and Pourability of Plastic Materials
D1921 Test Methods for Particle Size (Sieve Analysis) of Plastic Materials
D2132 Test Method for Dust-and-Fog Tracking and Erosion Resistance of Electrical Insulating Materials
D2396 Test Methods for Powder-Mix Time of Poly(Vinyl Chloride) (PVC) Resins Using a Torque Rheometer
D3030 Test Method for Volatile Matter (Including Water) of Vinyl Chloride Resins
D3892 Practice for Packaging/Packing of Plastics
E1 Specification for ASTM Liquid-in-Glass Thermometers
ICS Number Code 83.080.10 (Thermosetting materials)
UNSPSC Code 13111025(Polyvinyl chloride resin)