BS 3126:1959

Specification for toughened polystyrene moulding materials
standard by BSI Group, 09/14/1959

BS 3137:1959

Bursting strength of paper
standard by BSI Group, 09/30/1959

BS 3138:1979

Glossary of terms used in work study and organization and methods (O & M)
standard by BSI Group, 01/31/1979

BS 3173:1971

Specification for non-pocketed or open type spring centre units for domestic mattresses
standard by BSI Group, 03/10/1971

ASTM G167-15(2023)

Standard Test Method for Calibration of a Pyranometer Using a Pyrheliometer
standard by ASTM International, 02/01/2023