GB/T 24138-2022Petroleum resin (English PDF)

Foreword

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

This document replaces GB/T 24138-2009 "Petroleum Resins". Compared with GB/T 24138-2009, except for structural adjustments and editorial changes Besides, the main technical changes are as follows.

--- Changed product classification and naming (see Chapter 4, 4.1 and 4.2 of the.2009 edition);

--- Added "Automatic softening point determination according to the method specified in GB/T 4507 (ring and ball method)" (see 6.3);

--- Added "The representation and judgment of the test results in this document are performed according to GB/T 8170" (see 7.4);

--- Added the determination method of wax fog point (see Appendix A);

--- Increased the measurement method of thermal stability (see Appendix B);

--- Deleted the terms and definitions of bromine value (see Chapter 3 of the.2009 edition);

--- Deleted the determination method of bromine value of petroleum resin (PR) (see Appendix A of the.2009 edition);

--- Delete the determination method of n-heptane tolerance (see Appendix B of the.2009 edition).

1 Scope

This document specifies the classification and nomenclature, technical requirements, test methods, inspection rules, signs and accompanying documents and packages of petroleum resins (PR). packaging, transportation and storage.

This document is applicable to the by-products of ethylene plants (industrial cracked carbon 5, industrial cracked carbon 9, cracked naphthalene fraction, ethylene tar, etc.) as The main raw material for the production of petroleum resin.

2 Normative references

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

Preparation of GB/T 601 Standard Titration Solutions for Chemical Reagents Preparation of preparations and products used in GB/T 603 chemical reagent test methods

GB/T 2294 Determination method for softening point of coking solid products

GB/T 2295 Method for Determination of Ash Content of Coking Solid Products

GB/T 2895 Determination of partial acid value and total acid value of plastic polyester resin

GB/T 4507 Asphalt softening point determination method ring and ball method

GB/T 6679 General Rules for Sampling of Solid Chemical Products

GB/T 6682 Analysis Laboratory Water Specifications and Test Methods

GB/T 8170 Numerical Rounding Rules and Representation and Judgment of Limit Values

GB/T 22295 Determination of Color of Transparent Liquids (Gardner Color)

HG/T 3660 Determination of Melt Viscosity of Hot Melt Adhesives

3 Terms and Definitions

There are no terms and definitions that need to be defined in this document.

4 Classification and naming