GB/T 42790-2023Acrylic ester / vinyl chloride graft co-polymer resin (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

1 Scope

This document stipulates the technical requirements for the appearance, physical and chemical properties of acrylic copolymerized polyvinyl chloride resin, and describes the corresponding sampling and testing methods. laws, inspection rules, marking, packaging, transportation and storage.

This document applies to the research and development, production, use and quality control of acrylic copolymer polyvinyl chloride resin produced by the suspension method.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.

GB/T 191 Packaging, storage and transportation pictorial mark

GB/T 1040.1 Determination of tensile properties of plastics Part 1: General principles

GB/T 1040.2 Determination of tensile properties of plastics Part 2: Test conditions for molded and extruded plastics

GB/T 1043.1 Determination of impact properties of plastic simply supported beams Part 1: Non-instrumented impact test

GB/T 2914 Determination of volatiles (including water) from plastic vinyl chloride homopolymer and copolymer resins

GB/T 2916 Sieve analysis of air-jet sieve devices for plastic vinyl chloride homopolymer and copolymer resins

GB/T 3400 Determination of plasticizer absorption of general-purpose vinyl chloride homopolymer and copolymer resins at room temperature

GB/T 3401 Determination of viscosity of polyvinyl chloride resin dilute solution using capillary viscometer

GB/T 6678 General principles for sampling of chemical products

GB/T 6679 General principles for sampling of solid chemical products

GB/T 8170 Numerical rounding rules and representation and determination of limit values

GB/T 9348 Determination of the number of impurities and foreign particles in plastic polyvinyl chloride resin

GB/T 9352 Compression molding of plastic thermoplastic material samples

GB/T 13577 Open rubber mixing machine

GB/T 20022 Determination of apparent density of plastic vinyl chloride homopolymer and copolymer resins

GB/T 21189 Inspection of pendulum impact testing machines for plastic simply supported beams, cantilever beams and tensile impact testing

GB/T 21843 Determination of particle size of plastic vinyl chloride homopolymer and copolymer resins using mechanical sieves

GB/T 26026 Methyl tin mercaptide

GB/T 29874 Determination of residual vinyl chloride monomer in dry powder of plastic vinyl chloride homopolymer and copolymer resin by gas chromatography

HG/T 2424 Calcium stearate

HG/T 3034 flat plate vulcanizing machine

HG/T 3274 Stearyl alcohol

JJF1070 Measurement and Inspection Rules for Net Content of Quantitatively Packaged Goods

3 Terms and definitions

The following terms and definitions apply to this document.