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PDF Standards BS 2000-272:1987

Methods of test for petroleum and its products-Determination of mercaptan sulphur and hydrogen sulphide content of liquefied petroleum gases by electrometric titration
standard by BSI Group, 02/27/1987

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PDF Standards BS 3059-2:1978

Specification for steel boiler and superheater tubes-Carbon, alloy and austenitic stainless steel tubes with specified elevated temperature properties
standard by BSI Group, 03/29/1985

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