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BS

PDF Standards BS 2000-433:1998

Methods of test for petroleum and its products-Petroleum products. Determination of vanadium and nickel content. Wavelength-dispersive X-ray fluorescence spectrometry
standard by BSI Group, 03/01/1998

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BS

PDF Standards BS 229:1929

Specification. Flameproof enclosures for electrical apparatus (for use in mines and other places where an explosive atmosphere may be encountered) and tests for flame-proof enclosures
standard by BSI Group, 03/13/1929

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