GB/T 13587-2020 English PDF (GBT13587-2020)

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GB/T 13587-2020: Scraps of copper and copper alloy
GB/T 13587-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.150.30
H 62
Replacing GB/T 13587-2006
Scraps of copper and copper alloy
ISSUED ON: SEPTEMBER 29, 2020
IMPLEMENTED ON: AUGUST 01, 2021
Issued by: State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3 
1 Scope ... 5 
2 Normative references ... 5 
3 Terms and definitions ... 5 
4 Categories... 7 
5 Technical requirements ... 8 
6 Test method ... 11 
7 Inspection rules ... 12 
8 Marking, packaging, transportation and storage ... 14 
9 Purchase order (or contract) content ... 14 
Appendix A (Informative) Inspection method of radioactive contamination ... 15 
Appendix B (Normative) Preparation of chemical composition specimen and
testing method of metal recovery rate ... 21 
Appendix C (Informative) Copper scrap inspection process ... 23 
References ... 24 
Scraps of copper and copper alloy
1 Scope
This standard specifies the classification, technical requirements, test methods,
inspection rules, markings, packaging, transportation, storage, and purchase
order (or contract) content of scraps of copper and copper alloy (hereinafter
referred to as copper scrap).
This standard applies to scraps of copper and copper alloy.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) is applicable to this standard.
GB/T 5121 (all parts) Methods for chemical analysis of copper and copper
alloys
GB/T 8170 Rules of rounding off for numerical values and expression and
judgement of limiting values
GB/T 27683 Specifications for recovery of cutting filings of free-cutting
copper alloys
YS/T 482 Method for analysis of copper and copper alloys - The atomic
emission spectrometry
YS/T 483 Methods for analysis of copper and copper alloys - X-Ray
fluorescence spectrometric(wavelength dispersive)
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Scraps of copper and copper alloy
Materials that contain copper and copper alloy components that are
produced during the production process, or lose their original purpose or use
function during consumption and use, which can be recycled and reused by
smelting enterprises or processing and manufacturing enterprises.
3.2
Foreign material
Non-metallic substances mixed into copper scrap during production,
collection, packaging and transportation.
Note: Including waste wood, waste paper, waste plastics, waste rubber, waste glass,
rocks, powders (dust, sludge, crystalline salt, metal oxides, fiber powder, etc.) which
have a particle size of not greater than 2 mm, etc., excluding packaging and other
substances used during transportation.
3.3
Non-copper metal
Metal substances other than copper and copper alloys mixed into copper
scrap during production, collection, packaging and transportation.
Note: Generally, it includes free iron, aluminum and aluminum alloy, zinc and zinc
alloy, etc.
3.4
Plating material
The material plated on the surface of copper scrap.
Note: Generally, it includes nickel, tin, zinc, aluminum, chromium, etc.
3.5
Moisture
In the process of production, collection, packaging, storage and
transportation, the water and emulsion attached to the copper scraps.
3.6
Representative sample
A certain amount of physical objects that are extracted from the entire batch
of copper scraps and can fully represent the attributes of copper scraps.
3.7
before inspection, then inspected by sensory organs.
6.2 Radioactive contaminants
The radioactive contaminants of copper scrap can be inspected with reference
to Appendix A.
6.3 Hazardous substances
Hazardous substances in copper scrap are inspected by the sensory organs.
6.4 Chemical composition
The chemical composition analysis method is carried out in accordance with
the requirements of GB/T 5121 (all parts), YS/T 482 or YS/T 483. The arbitration
inspection shall be conducted in accordance with the provisions of GB/T 5121
(all parts).
6.5 Metal recovery rate
The metal recovery rate of copper scrap is estimated using senses. When there
is disagreement between the supplier and the buyer, the inspection shall be
carried out in accordance with the provisions of Appendix B.
7 Inspection rules
7.1 Inspection process
The copper scrap specified in this standard can be inspected with reference to
the process of Appendix C.
7.2 Inspection and acceptance
The purchaser shall inspect the copper scrap received according to this
standard. If the inspection result does not conform to the provisions of this
standard and the purchase order (or contract), it shall be submitted to the
supplier in written form and the two parties shall negotiate and resolve. If
arbitration is required, a third party recognized by the supplier and the buyer
can be entrusted to conduct it.
7.3 Group-batching
Copper scraps shall be submitted for inspection in batches. Each batch shall
be composed of copper scraps of the same category, name and grade; the
batch weight shall not exceed 50 t.
7.4 Inspection items
Appendix A
(Informative)
Inspection method of radioactive contamination
A.1 Inspection instrument
The inspection instrument shall meet the requirements of GB 18871, GB/T
12162.3, GB/T 5202.
A.2 Measurement of external radiation penetration radiation dose rate
A.2.1 Measurement of natural environmental radiation background
A.2.1.1 Before measuring the external radiation penetration radiation dose rate,
it shall first measure and determine the local natural environmental radiation
background value.
A.2.1.2 Select 3 ~ 5 points (can be used as fixed survey points) on a flat open
ground without radioactive contamination that can represent the local normal
natural radiation background state as the measurement points.
A.2.1.3 Place the measuring probe of the measuring instrument at a height of
1 m above the measuring point to measure the penetration radiation dose rate
of the external radiation. Read the measured value once every 10 s. Take the
average of the 10 readings as the measured value of this point. Take the
arithmetic average of the measured values of each measuring point as the
average value of normal natural radiation.
A.2.2 Tour inspection
A.2.2.1 The copper scrap shall be tour-inspected for radioactive contamination.
During the tour inspection, the measuring instrument shall be as close as
possible to the surface of the measured object or the surface of the container,
car body, warehouse, etc., to perform the tour inspection of the surface of the
object to be measured.
A.2.2.2 When it is found that the radioactivity has obviously exceeded the
management limit of 3 test indicators during the tour inspection, it is judged as
unqualified. When radioactive contamination has been found to exceed the
management limit of 3 detection indicators, no sub-inspection or selection will
be carried out.
A.2.3 Distribution of test points
K1 - The scale factor of the measuring instrument (given by the instrument's
calibration certificate);
Kη - The efficiency factor of the measuring instrument;
- The r...