BS 3971:1980
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Specification for image quality indicators for industrial radiography (including guidance on their use)
Hardcopy , PDF
15-04-1997
English
31-12-1980
Dimensional requirements, construction, materials and marking of wire-type, step/hole type and duplex-wire type image quality indicators for assessing quality of industrial radiographs on materials from 3 mm to 250 mm thick. Appendix provides detailed guidance on the use of each type including sensitivity and unsharpness values.
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