BS 2870:1980

Foreword
Cooperating organizations
Specification
Section one - Introduction
1 Scope
2 References
3 Definitions
Section two - General requirements
4 General
5 Information to be supplied by the purchaser
6 Freedom from defects
7 Chemical composition
8 Manufacture
9 Condition
10 Dimensions and tolerances
11 Selection of test samples
12 Mechanical tests (including preparation of test pieces)
13 Hydrogen embrittlement test
14 Microscopic examination
15 Retests
16 Supplier's certificate
17 Inspection
18 Facilities for testing
19 Rounding of numbers rule
Section three - Requirements for leaded brass strip
                for clocks and watches and for other
                instruments
20 General
21 Material
22 Grades
23 Tolerances
24 Tensile properties
25 Stress relieving
26 Microstructure
Section four - Requirements for nickel-silver strip and
               foil for the telecommunication industries
27 General
28 Material
29 Tolerances
30 Temper grades
31 Bend test
32 Grain size
Section five - Requirements for brass sheet, strip and foil
               for the telecommunication industries
33 General
34 Material
35 Tolerances on straightness (edgewise curvature)
36 Temper grades
37 Grain size
38 Finish
Section six - Requirements for copper-beryllium strip and
              foil for telecommunication, instrument springs
              and similar applications
39 General
40 Material
41 Tolerances
Section seven - Requirements for copper sheet and strip
                for roofing, building and decorative purposes
42 General
43 Material
44 Tolerances
45 Temper grades
46 Double close bend test (for grade A roofing material only)
Section eight - Requirements for copper sheets and circles
                for hot water storage units (domestic cylinders)
47 General
48 Material
49 Tolerances
50 Hardness test
51 Bend test
Appendices
Appendix A - Alloys not included in this British Standard
             but available in other product forms
Appendix B - Conversion of stress in N/mm[2] to kgf/mm[2],
             tonf/in[2] and lbf/in[2]
Standards publications referred to

Thicknesses up to 10.0 mm in 5 grades of copper and 30 copper alloys. Dimensions and tolerances; composition, condition and mechanical properties for general applications. Further requirements or particular applications for specific materials for clocks, watches, instruments, telecommunications, roofing, building, decorative and other purposes.