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BS EN ISO 8819:1995
Methods of test for petroleum and its products. Liquefied petroleum gases. Detection of hydrogen sulfide. Lead acetate method (British Standard)
Specifies a procedure for the detection of hydrogen sulfide. The lower limit of detectability is 4 mg of hydrogen sulfide in 1 m^3 of gas. Methyl mercaptan, if present, produces a transistory yellow stain on the lead acetate paper which, however, fades completely in less than 5 min. Other sulfur compounds present in the gas do not interfere with the test.
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British Standards Institution [bsi]
British Standards Institution [bsi]