Determination of benzene,toluene,ethylbenzene and xylene in polypropylene fiber tow and polypropylene fiber tow filter rod-Gas chromatography-mass spectrometry method
发布日期:2010-12-01 实施日期:2011-01-01
Benzol products of coal carbonization--Determination of boiling range
发布日期:1987-06-29 实施日期:1988-01-01
Benzol products of coal carbonization--Determination of acid-wash test
实施日期:1988-01-01
Soil analysis. Method for determination of coal tar-derived phenolic compounds
TECHNICAL SPECIFICATION OF XYLENE TYPE UNSATURATED POLYESTER RESLNS FOR ANTICORROSION ENGINEERING ...
实施日期:1995-04-14
Benzol products of coal carbonization - Test for presence of mercap tans
发布日期:2009-10-30 实施日期:2010-05-01
Standard Test Method for Analysis of o-Xylene by Gas Chromatography
实施日期:2005-07-01
Determination of benzene,toluene,xylene isomers,free toluene diisocynate and phthalate plasticizers in adhesives used in building for import and export
发布日期:2010-05-27 实施日期:2010-12-01
Sulphuric acid for industrial use--Determination of oxides of nitrogen-2.4-xylenol spectrophotometric method
实施日期:1990-01-01
Benzol products of coal carbonization--Determination of total sulphur content--Reduction and spectrophotometric method
发布日期:1987-06-29 实施日期:1988-01-01
German standard methods for the examination of water, waste water and sludge; cations (group E), determination of nine heavy metals (Ag, Bi, Cd, Co, Cu, Ni, Pb, Tl, Zn) (E21)
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