BS 5204-1:1975 PDF

What is BS 5204-1 - Specification for straightedges about?

BS 5204-1 is an International Standard that discusses the technical specifications for cast iron straightedges. BS 5204-1 specifies requirements for cast iron straightedges of bow shaped design and of I-section in metric sizes. BS 5204-1 provides two grades of accuracy for each type, namely, grade A and grade B. Requirements applicable to both types are given in BS 5204-1 . BS 5204-1 also specify 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. Therefore, BS 5204-1 recommends general dimensions, methods of testing a...