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BS EN 1978:2022

BS EN 1978:2022

$94.54

Copper and copper alloys. Copper cathodes

Published By Publication Date Number of Pages
BSI 2022 20
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This document specifies the composition and property requirements for cathodes of two copper grades, designated Cu-CATH-1 (CR001A) and Cu-CATH-2 (CR002A). Annex A (normative) describes methods for sampling cathodes for use in cases of dispute between the purchaser and the supplier. Annex B (informative) gives information on the relationships between electrical resistivity and conductivity of copper.

PDF Catalog

PDF Pages PDF Title
2 undefined
7 1 Scope
2 Normative references
3 Terms and definitions
8 4 Designations
4.1 Material
4.1.1 General
4.1.2 Symbol
4.1.3 Number
4.2 Product
9 5 Ordering information
6 Requirements
6.1 Composition
6.2 Electrical properties
10 6.3 Dimensions and tolerances
6.4 Surface condition
12 7 Sampling
8 Test methods
8.1 Analysis
8.1.1 Routine analysis
8.1.2 Analysis in cases of dispute
13 8.2 Electrical resistivity
8.2.1 Routine determination of electrical resistivity
8.2.2 Determination of electrical resistivity in cases of dispute
8.3 Retests
8.4 Rounding of results
9 Declaration of conformity and inspection documentation
9.1 Declaration of conformity
9.2 Inspection documentation
14 10 Marking
15 Annex A (normative)Methods for use in cases of dispute, for the sampling of cathodes and for the preparation of analysis samples
A.1 Introduction
A.2 Definitions
A.3 Apparatus and reagents
A.3.1 Crucible, with a close-fitting lid
A.3.2 Hydrochloric acid, 10 % (by volume), commercial grade
A.3.3 Deionized water
A.3.4 Electric induction, or resistance, melting furnace, with provision for an inert internal atmosphere at high temperatures
A.3.5 Rod
A.3.6 Test ingot moulds, to provide ingots 20 mm × 20 mm in cross-section and 100 mm to 200 mm long
16 A.3.7 Drilling, milling or sawing machine, equipped with carbide tipped cutting tools
A.3.8 Magnet
A.4 Selection of sample cathodes
A.4.1 Division of a consignment into lots
A.4.1.1 If the consignment of cathodes originates from one refinery, consider it as one lot if it consists of more than 25 t and up to and including 200 t of cathodes. Subdivide any consignment greater than 200 t into a number of approximately equal lots, each not exceeding 200 t.
A.4.1.2 If the consignment consists of cathodes originating from more than one refinery, separate it into part consignments, each from one refinery, and divide each part-consignment into lots, as described in A.4.1.1.
A.4.2 Random sampling of a lot
A.5 Preparation of cathode samples
A.6 Preparation of bulk sample
17 A.7 Preparation of aggregate analysis sample
A.8 Preparation and distribution of analysis samples
18 Annex B (informative)Information on electrical resistivity and conductivity relationships
B.1 Mass resistivity
B.2 Standard annealed copper (IACS)
B.3 Commercial annealed copper
B.4 Nominal volume resistivity
B.5 Differences between measured and nominal values

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BS EN 1978:2022
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