GB/T 26017-2020 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 26017-2020 | English | 125 |
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High purity copper
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| GB/T 26017-2010 | English | 359 |
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High purity copper
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GB/T 26017-2020: High purity copper---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT26017-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.150.30
H 62
Replacing GB/T 26017-2010
High purity copper
高纯铜
Issued on: SEPTEMBER 29, 2020
Implemented on: AUGUST 01, 2021
Issued by. State Administration for Market Regulation;
Standardization Administration of the People's Republic of China.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative references... 4
3 Requirements... 4
4 Test methods... 7
5 Inspection rules... 8
6 Marks, packaging, transportation, storage and quality certificate... 9
7 Contents of order (or contract)... 10
High purity copper
1 Scope
This Standard specifies the requirements, test methods, inspection rules, marking,
packaging, transportation, storage, quality certificate and order (or contract) contents
for high purity copper products.
This Standard applies to high purity copper used in sputtering targets and ion plating
products, various connecting wires in the electronics industry, bonding wires for
electronic packaging, high-quality audio cables, high purity reagents, standard samples
and advanced alloys.
2 Normative references
The following referenced documents are indispensable for the application 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/T 8170, Rules of rounding off for numerical values and expression and
judgement of limiting values
YS/T 922, Methods for chemical analysis of high purity copper. Determination of
trace impurity elements content. Glow discharge mass spectrometry
3 Requirements
3.1 Product classification
High purity copper is divided into four designations according to the copper content.
HPCu-7N, HPCu-6N5, HPCu-6N, and HPCu-5N.
NOTE. HPCu is the abbreviation of High purity copper.
3.2 Chemical composition
3.2.1 The chemical composition requirements of high purity copper shall comply with
the requirements in Table 1.
3.3 Product dimensions
3.3.1 Strip. length × width is (300±1) mm × (10±1) mm; thickness is (4±2) mm.
3.3.2 Block. length × width is (50±1) mm × (50±1) mm; thickness is (4±2) mm.
3.3.3 Product dimensions can be cut to suit the requirements of the purchaser and must
be specified in the order (or contract).
3.4 Appearance quality
3.4.1 The surface of high purity copper has a metallic luster. It is clean and tidy. It is
free of oil stains, attachments, and pores.
3.4.2 The size of the protrusions on the surface of high purity copper shall not exceed
3 mm × 3 mm. The height beyond the surface shall not exceed 3 mm.
3.4.3 The color of the same batch of products shall remain consistent.
3.5 Other requirements
If the purchaser has special requirements for the chemical composition and physical
specifications of high purity copper, the supplier and the purchaser can negotiate and
indicate it in the order (or contract).
4 Test methods
4.1 The determination of impurity elements in high purity copper shall be carried out
in accordance with the method specified in YS/T 922.
4.2 The dimensions of the product and the dimensions of the protrusions on the surface
shall be measured with corresponding precision measuring tools. The rest of the
appearance shall be measured by visual inspection.
5 Inspection rules
5.1 Inspection and acceptance
5.1.1 The supplier's quality supervision department is responsible for inspecting the
products, ensuring that the products comply with the provisions of this Standard or the
purchase order (or contract), and filling in the quality certificate.
5.1.2 The purchaser may inspect the products received. If the inspection results are
inconsistent with the provisions of this Standard or the purchase order (or contract), the
purchaser shall submit a request to the supplier within 15 days from the date of receipt
of the product. The supplier and purchaser shall negotiate to resolve the issue. If
arbitration is required, the arbitration sampling shall be conducted by the purchaser. The
supplier and purchaser shall jointly conduct the arbitration.
5.2 Batching
Each batch of products shall consist of products of the same designation produced in
the same system and in the same production cycle. The batch weight shall not exceed 1
ton.
5.3 Sampling and sample preparation
5.3.1 Chemical composition arbitration sampling. Use shearing equipment to randomly
cut no less than two samples (the specific details can be negotiated by the supplier and
the purchaser and specified in the contract). The sample size specifications shall comply
with the analysis requirements of YS/T 922.
5.3.2 Place the cut sample in a nitric acid solution with a ratio of V (nitric acid). V
(deionized water) = 1.1 [nitric acid purity must be analytical designation or above.
Sulfuric acid can also be used instead of nitric acid according to customer requirements
and shall be specified in the order (or contract)] and soak for 1 min~2 min. Wash
thoroughly with deionized water to remove all foreign dirt and residual acid on the
surface and dry (avoid oxidation). Vacuum pack in aluminum plastic bag for arbitration
analysis.
5.3.3 Product size and appearance quality shall be inspected piece by piece.
5.4 Determination of test results
5.4.1 The analysis results shall be rounded off in accordance with the provisions of
GB/T 8170.The rounded value comparison method shall be used for determination.
5.4.2 If the results of the arbitration analysis of chemical composition do not conform
to the provisions of this Standard and the purchase order (or contract), the batch of
products shall be judged as unqualified.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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