Recycling material for copper
1 Scope
This document specifies the classification, technical requirements, test methods, inspection rules, incoming inspection, transportation, storage and accompanying documents of recycling materials for copper (hereinafter referred to as "raw materials").
This document is applicable to recycling materials for copper.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 5085.1 Identification standards for hazardous wastes - Identification for corrosivity
GB 5085.2 Identification standards for hazardous wastes - Screening test for acute toxicity
GB 5085.3 Identification standards for hazardous wastes - Identification for extraction toxicity
GB 5085.4 Identification standards for hazardous wastes - Identification for ignitability
GB 5085.5 Identification standards for hazardous wastes - Identification for reactivity
GB 5085.6 Identification standards for hazardous wastes - Identification for toxic substance content
GB/T 5121.1 Methods for chemical analysis of copper and copper alloys - Part 1: Determination of copper content
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
SN/T 0570-2022 Rules for inspection of radioactive contamination of imported recycling materials
YS/T 483 Methods for analysis of copper and copper alloys - X-Ray fluorescence spectrometric (wavelength dispersive)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
copper scrap
copper-containing material that is recovered after initial sorting and used to reclaim copper, which may be contaminated with or mixed with non-copper materials
3.2
recycling materials for copper
copper scrap that meet the requirements for direct production and utilization after sorting, pretreatment and processing
3.3
representative sample
certain quantity of physical object which is extracted from the whole batch of raw materials and can fully represent the attributes and characteristics of raw materials
3.4
foreign substance
non-metallic substance mixed into raw materials during production, collection, packaging and transportation
Note: It includes waste wood, waste paper, waste plastics, waste rubber, waste glass, stones and powders (such as dust, sludge, crystalline salt, metal oxide, fiber dust, etc.), but does not include packaging materials and other substances used in transportation.
3.5
radioactive contamination
contamination caused by undesirable radioactive materials present on the surface of the raw material in excess of their natural amounts, resulting in technical trouble or radiation hazards
[Source: GB/T 0570-2022, 3.4]
3.6
volatile substance
substance that may be naturally separated from raw materials after proper heating treatment at a temperature of 350°C
Note: It includes the following substances:
——Moisture, i.e. the free water adhered to the raw material and recognizable during delivery. Raw materials may bring moisture during production, collection, packaging, storage or transportation.
——Organic matter such as grease and emulsion adhered to raw materials.
3.7
non-copper metal
metallic substances other than copper and copper alloys mixed into raw materials during production, collection, packaging, storage and transportation
Note: In general, non-copper metal includes free iron, aluminum and aluminum alloy, zinc and zinc alloy.
3.8
physical quantity of copper
ratio of copper content to the weight of the original sample after removing foreign substances, other volatile substances, non-copper metals and copper alloys per unit mass of the representative sample
Note: It is expressed as mass fraction.
3.9
coating
organic materials painted on the surface of raw materials
Note: It generally includes logo paint, antirust paint, and insulating layer.
3.10
plating
metallic material coated on the surface of raw materials
Note: In general, plating includes nickel, tin, zinc, aluminum and chromium.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Technical requirements
6 Test method
7 Inspection rules
8 Incoming inspection
9 Transportation, storage and accompanying documents
Annex A (Informative) Typical photos of recycling materials for copper
Annex B (Normative) Detection method of volatile substance
Annex C (Normative) Incoming inspection
Annex D (Normative) Preparation of copper content samples and test method of metal recovery rate
Bibliography
