Standard No.:	GB/T 38470-2023
English Name:	Recycling material for copper alloy
Chinese Name:	再生铜合金原料
Chinese Classification:	H62    Heavy metals and their alloys
Professional Classification:	GB    National Standard
ICS Classification:	77.150.30 77.150.30    Copper products 77.150.30
Issued by:	SAMR; SAC
Issued on:	2023-05-23
Implemented on:	2023-12-1
Status:	valid
Superseding:	GB/T 38470-2019 Recycling materials for brass
Language:	English
File Format:	PDF
Word Count:	14500 words
Price(USD):	435.0
Delivery:	via email in 1 business day

GB/T 38470-2023 Recycling material for copper alloy 1 Scope This document specifies the classification, technical requirements, test methods, inspection rules, incoming inspection, transportation, storage and accompanying documents of recycling material for copper alloy (hereinafter referred to as the "raw material"). This document is applicable to the recycling material for copper alloy. 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 (All parts) Methods for chemical analysis of copper and copper alloys GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values SN/T 0570-2022 Rules for the inspection of radioactive contamination of imported recycling materials YS/T 482 Methods for analysis of copper and copper alloys - The spark discharge atomic emission spectrometry 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 alloy scrap copper-containing substance recovered after initial classification for production of recycling copper alloy, which may be contaminated with or mixed with non-copper materials 3.2 recycling material for copper alloy copper alloy scrap that meets the requirements of direct production and utilization after classification, pretreatment and processing Note: Copper alloy refers to the alloy with copper as substrate and added with one or more elements to obtain certain predefined characteristics, such as brass, bronze, cupronickel and high copper. See GB/T 11086-2013 for definition. 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 coating organic materials painted on the surface of raw materials Note: In general, coating includes logo paint, antirust paint and insulating layer. 3.6 plating metallic material coated on the surface of raw materials Note: In general, plating includes nickel, tin, zinc, aluminum and chromium.   3.7 volatile substance substance that may be separated from raw materials naturally after proper heat treatment at 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. 3.8 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. 3.9 physical quantity of copper alloy after removing foreign substances, other volatile substances and non-copper metals, ratio of the mass of copper alloy per unit mass of the representative sample to the mass of the original representative sample Note: It is expressed as mass fraction. 3.10 metal recovery rate after pretreatment to remove foreign substances and non-copper metals, melting to remove slag and solidification, ratio of the mass of casting block obtained to the mass of original representative sample Note: It is expressed as mass fraction. 3.11 chemical composition sample sample made by direct extraction or melting of raw materials and used for detecting the content of copper and other elements 3.12 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]

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Classification 5 Technical requirements 6 Test methods 7 Inspection rules 8 Incoming inspection 9 Transportation, storage and accompanying documents Annex A (Informative) Typical photos of apparent characteristics of raw materials Annex B (Normative) Detection method of volatile substance Annex C (Normative) Incoming inspection Annex D (Normative) Preparation of chemical composition samples and detection method of metal recovery rate Bibliography