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Description of BS 5204-1:1975 1975This Part of this British Standard specifies requirements for cast iron straightedges of bow shaped design and of I-section in metric sizes. Two grades of accuracy are provided for each type, namely grade A and grade B. Requirements applicable to both types are given in clauses 3 and 4 and 7 to 14 inclusive while clauses 5 and 6 specify particular requirements relating to bow shaped straightedges in lengths up to and including 8 000 mm and I-section straightedges in lengths up to and including 5 000 mm. Recommended general dimensions, methods of testing and heat treatments are given in appendices.
Metric sizes in lengths up to 8000 mm bow shaped and 5000 mm I section. Two grades of accuracy for each type, material, manufacture, design. Recommended dimensions and test methods appended.
About BSIBSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses. |
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