Download or read book GB T 223 89 2019 Translated English of Chinese Standard GBT 223 89 2019 GB T223 89 2019 GBT223 89 2019 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2019-10-12 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part of GB/T 223 specifies a method for the determination of tellurium content by hydride generation-atomic fluorescence spectrometric method. This Part applies to the determination of tellurium content in iron, steel and alloy. The determination range is 0.00001 % ~ 0.005 % of mass fraction.

Download or read book GB T 223 26 2008 Translated English of Chinese Standard GBT 223 26 2008 GB T223 26 2008 GBT223 26 2008 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2019-05-03 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: This part of GB/T 223 specifies the determination of molybdenum by thiocyanate direct spectrophotometry and thiocyanate-butyl acetate extraction spectrophotometry. The method-1 of this part is applicable to the determination of molybdenum content of 0.10%~2.00% (mass fraction) in medium-and-low alloy steel, hightemperature alloy steel, precision alloy. The method-2 of this part is applicable to the determination of molybdenum content of 0.0025% ~ 0.20% (mass fraction) in pig iron, carbon steel, alloy steel.