GB/T 42263-2022
Determination of nitrogen content in silicon single crystal—Secondary ion mass spectrometry method
GB/T 41153-2021
Determination of boron, aluminum and nitrogen impurity content in silicon carbide single crystal—Secondary ion mass spectrometry
GB/T 5195.10-2006
Fluorspar―Determination of iron content―1,10-phenanthroline spectrophotometric method
GB/T 10209.1-2008
Determination of monoammonium phosphate and diammonium phoshpate - Part 1: Total nitrogen content
GB/T 223.70-2008
Iron, steel and alloy - Determination of iron contents - O-phenanthroline spectrophotometric method
YB/T 5330-2009
GB/T 22660.7-2008
Chemical analysis methods of lithium fluoride - Part 7: Determination of iron content - Orthophenantholine photometric method
GB/T 21994.7-2008
Chemical analysis of magnesium fluoride - Part 7: Determination of iron content - Orthophenantholine photometric method
GB/T 6609.4-2004
Chemical analysis methods and determination of physical performance of alumina--Determination of ferric oxide content--Orthophenanthroline photometric method
GB/T 13748.9-2013
Chemical analysis methods of magnesium and magnesium alloys - Part 9:Determination of iron content - Orthopenanthroline spectrophotometric method
GB/T 10209.1-2001
Determination of total nitrogen content for monoammonium phosphate and diammonium phosphate Titrimetric method after distillation
SN/T 0481.9-2010
Methods for inspection of bauxite for export-Part 9:Determination of free iron content-1,10-Phenanthroline spectrophotometric method
YS/T 424.3-2022
YS/T 629.2-2007
Chemical analysis methods of high purity alumina Determination of ferric oxide Orthopenanthroline photometric method extracted with Methyl-iso-butyl ketone
YS/T 575.5-2007
Methods for chemical analysis of bauxite—Part 5:Determination of iron oxide content—Orthophenanthroline photometric method
YB/T 190.8-2014
Continuous casting powder - The determination of iron content - The o-phenanthroline spectrophotometric method and the flame atomic absorption method
GB/T 42513.4-2023
Methods for chemical analysis of nickel alloys—Part 4:Determination of silicon content—Nitrous oxide-flame atomic absorption spectrometry and molybdenum blue spectrophotometry
SH/T 1157.2-2015
Rubber,raw-Determination of bound acrylonitrile content in acrylonitrile-butadiene rubber(NBR)-Part 2:Kjeldahl method
YS/T 534.4-2007
Chemical analysis methods of aluminium hydroxide—Part 4:Determination of iron oxide content—Orthophenanthroline photometric method
SN/T 3470.2-2013
Rubber,raw-Determination of bound acrylonitrile content in acrylonitrile-butadiene rubber(NBR)-Part 2:Kjeldahl method