GB/T 27683-2023Specifications for recovery of cutting filings of copper and copper alloy (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.

This document replaces GB/T 27683-2011 "Specifications for Recycling of Cutting Chips of Free-cutting Copper Alloys". This document is consistent with GB/T 27683- Compared with.2011, in addition to structural adjustments and editorial changes, the main changes are as follows.

a) The terms and definitions of cutting chips, inclusions, volatile matter, samples, chemical composition samples, and radioactive contamination have been added, and easy cutting has been deleted.

Terms and definitions of copper alloy cutting waste, direct and effective recovery, direct and efficient recycling (see Chapter 3, 2011 edition Chapter 3);

b) The name and classification of cutting chips have been changed (see 4.1, 4.1 of the 2011 edition);

c) The morphology of cutting chips has been changed, and the provisions on the outer dimensions of cutting chips have been deleted (see 4.2, 4.3 of the 2011 edition);

d) Added marking of cutting chips (see 4.3);

e) Change the requirements for cutting chip volatiles (see 5.2, 4.4 of the 2011 edition);

f) Changed the chip inclusion content (see 5.3, 4.4.1 of the 2011 edition);

g) Changed the requirements for chemical composition (see 5.4, 4.2.2 of the 2011 edition);

h) Added technical requirements for radioactive contaminants and hazardous waste in cutting chips (see 5.5 and 5.6);

i) Added test methods for radioactive contaminants and hazardous waste in cutting chips (see 6.5 and 6.6);

j) Added inspection rules (see Chapter 7);

k) Changed the requirements for recycling and use of cutting chips (see Chapter 8, Chapter 9, Chapter 5 of the 2011 edition);

l) Added relevant requirements for accompanying documents (see Chapter 10);

m) Changed the "Detection Method for Cutting Chips, Oil, Water and Inclusions" to "Detection Method for Volatile Matter" (see Appendix A, 2011 version of the appendix Record B);

n) The sampling method for cutting chips has been changed (see Appendix C, Appendix A of the 2011 edition).

1 Scope

This document specifies the classification, technical requirements, test methods, inspection rules, and returns of copper and copper alloy cutting chips (hereinafter referred to as "cutting chips").

Receipt, use, transportation, storage and accompanying documents and order form contents.

This document applies to the recycling of copper and copper alloy cutting chips in the production and trade fields. Saving copper resources and improving scrap metal recycling It can also be used as a reference in the management of reuse and low-carbon energy conservation and emission reduction.

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 5085.1 Hazardous Waste Identification Standard Corrosive Identification

GB 5085.2 Hazardous waste identification standard acute toxicity preliminary screening

GB 5085.3 Hazardous Waste Identification Standard Leaching Toxicity Identification

GB 5085.4 Hazardous waste identification standard flammability identification

GB 5085.5 Hazardous Waste Identification Standard Reactivity Identification

GB 5085.6 Hazardous Waste Identification Standard Toxic Substance Content Identification

GB/T 5121 (all parts) Chemical analysis methods for copper and copper alloys

GB/T 5231 Processed copper and copper alloy grades and chemical composition

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

YS/T 482 Analysis methods for copper and copper alloys Spark discharge atomic emission spectrometry

YS/T 483 Analysis method for copper and copper alloys X-ray fluorescence spectrometry (wavelength dispersion type)

"National Hazardous Waste List" of the Ministry of Ecology and Environment of the People's Republic of China

3 Terms and definitions

The following terms and definitions apply to this document.