Methods of test for petroleum and its products. Part 49, penetration of bituminous materials /

Methods of test for petroleum and its products. Part 49, penetration of bituminous materials / British Standards Institution. - 5 pages ; 33cm. - British standard ; BS 2000 : PART 49 : 1983 . - British standard ; BS 2000 : PART 49 : 1983 .


Petroleum products--Analysis.
Bituminous materials--Great Britain.

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