GB/T 15592-2021 PDF English
GB/T 15592: Historical versions
| Standard ID | USD | BUY PDF | Delivery | Standard Title (Description) | Status |
| GB/T 15592-2021 | 170 | Add to Cart | Auto, 9 seconds. | Polyvinyl chloride paste resins | Valid |
| GB 15592-2008 | 399 | Add to Cart | 3 days | [GB/T 15592-2008] Polyvinyl chloride paste resins | Obsolete |
| GB 15592-1995 | 279 | Add to Cart | 3 days | Paste polyvinyl chloride resins | Obsolete |
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GB/T 15592-2021: Polyvinyl chloride paste resins
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT15592-2021GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 83.080.20 CCS G 32 Replacing GB/T 15592-2008 Polyvinyl Chloride Paste Resins Issued on: DECEMBER 31, 2021 Implemented on: JULY 1, 2022 Issued by. State Administration for Market Regulation; Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3 1 Scope... 5 2 Normative References... 5 3 Terms and Definitions... 6 4 Classification... 6 5 Requirements... 8 6 Sampling... 8 7 Test Methods... 9 8 Inspection Rules... 11 9 Marking and Accompanying Documents... 12 10 Packaging, Transportation and Storage... 12 Polyvinyl Chloride Paste Resins1 Scope
This document specifies the classification, requirements, sampling, test methods, inspection rules, marking, accompanying documents, packaging, transportation and storage of polyvinyl chloride paste resins. This document applies to polyvinyl chloride paste resins produced using emulsion method, micro-suspension method, and other polymerization methods.2 Normative References
The contents of the following documents constitute indispensable clauses of this document through the normative references in the text. In terms of references with a specified date, only versions with a specified date are applicable to this document. In terms of references without a specified date, the latest version (including all the modifications) is applicable to this document. GB/T 191 Packaging - Pictorial Markings for Handling of Goods GB/T 2914-2008 Plastics - Homopolymer and Copolymer Resins of Vinyl Chloride - Determination of Volatile Matter (including water) GB/T 3401 Determination of the Viscosity of Poly (vinyl chloride) Resins in Dilute Solution Using Capillary Viscometers GB/T 3402.1 Plastics - Homopolymer and Copolymer Resins of Vinyl Chloride - Part 1. Designation System and Basis for Specifications GB/T 3402.2 Plastics - Homopolymer and Copolymer Resins of Vinyl Chloride - Part 2. Preparation of Test Samples and Determination of Properties GB/T 5761-2018 Suspension Polyvinyl Chloride Resins of General Purpose GB/T 6678 General Principles for Sampling Chemical Products GB/T 6679 General Rules for Sampling Solid Chemical Products GB/T 8170 Rules of Rounding off for Numerical Values & Expression and Judgement of Limiting Values GB/T 9350 Plastics - Homopolymer and Copolymer Resins of Vinyl Chloride - Determination of pH of Aqueous Extract GB/T 12004.4 Polyvinyl Chloride Paste - Determination of Apparent Viscosity by the Brookfield Test Method GB/T 16613 Plastics - Preparation of PVC Pastes for Test Purposes - Dissolver Method GB/T 21988 Plastics - Vinyl Chloride Homopolymer and Copolymer Resins - Sieve Analysis in Water GB/T 21990 Polyvinyl Chloride (PVC) Pastes - Determination of Fineness of Grind GB/T 21991-2008 Plastics - Preparation of PVC Paste for Test Purpose - Planetary-mixer Method GB/T 21992 Polyvinyl Chloride Resins for Paste - Determination of Number of Impurities Particles and Foreign Particles GB/T 29874 Plastics - Homopolymer and Copolymer Resins of Vinyl Chloride - Determination of Residual Vinyl Chloride Monomer by Gas-chromatographic Analysis of Dry Powder JJF 1070 Rules of Metrological Testing for Net Quantity of Products in Prepackages with Fixed Content3 Terms and Definitions
This document does not have terms or definitions that need to be defined.4 Classification
4.1 Models of Polyvinyl Chloride Paste Resins The models of resin for polyvinyl chloride paste are composed of 6 parts as specified in GB/T 3402.1.product name, polymerization method, application, viscosity number code, standard paste proportion, and standard paste viscosity code. 4.2 Viscosity Number Code5 Requirements
5.1 Appearance White powder. 5.2 Properties The viscosity number, K value, or average degree of polymerization of the polyvinyl chloride paste resins shall meet the requirements of Table 1; the standard paste viscosity shall meet the requirements of Table 3; and other physical and chemical properties shall meet the requirements of Table 4.6 Sampling
6.1 Batching A batch consists of products obtained from a single reactor or several reactors produced under the same polymerization conditions, thoroughly mixed. 6.2 Sampling 6.2.1 For bagged products, in accordance with the provisions of GB/T 6678, determine the number of sampling units. Use a suitable sampling probe specified in GB/T 6679, vertically insert it into the center of the packaging bag to a depth of 3/4 to collect the samples. During exit-factory inspection and type inspection, manufacturing enterprises may use automatic sampling devices (or manual sampling) at intervals on the packaging line to collect representative samples. The sampling quantity shall not be less than 2 kg. 6.2.2 Thoroughly mix the collected samples, place them in a clean, dry container (or plastic bag), and tightly seal (samples used for determining residual vinyl chloride monomer content shall be stored in a well-sealed sample bottle and compacted to the brim). Label the container with the manufacturing enterprise’s name, product name, model, batch number or production date, sampling quantity and sampling date, etc.7 Test Methods
7.1 Appearance Visually observe under natural light. 7.2 Determination of Viscosity Number, K Value and Average Degree of Polymerization 7.2.1 Description of determination methods Any method may be chosen for determining viscosity number, K value and average degree of polymerization. Among them, GB/T 3401 is the arbitration method. 7.2.2 Determination of viscosity number Determine in accordance with the method specified in GB/T 3401. 7.2.3 Determination of K value Determine in accordance with the method specified in GB/T 3401. 7.2.4 Determination of average degree of polymerization Determine in accordance with the method specified in Appendix A of GB/T 5761-2018. 7.3 Determination of Standard Paste Viscosity 7.3.1 Use the standard paste proportions in Table 2, in accordance with the method specified in GB/T 21991-2008 or GB/T 16613, prepare paste. The paste prepared using method B specified ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
