BS 4475:1975
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Specification for straight mineral lubricating oils
Hardcopy , PDF
12-20-1991
English
10-31-1975
Oils having viscosity grade numbers 2 to 1500 are grouped into 3 quality levels. The oils are suitable for many industrial applications; no additives except pour-point depressants permitted.
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