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PDF Standards BS 5550-3.2.3:1978

Cinematography. 35 mm film. Image areas-Specification for positions and dimensions of the picture image area and photographic sound record on 35 mm motion-picture release prints
standard by BSI Group, 02/28/1978

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PDF Standards BS 4427-8:1974

Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use-Determination of orthophosphate content
standard by BSI Group, 06/07/1974

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