GB/T 33401-2016
Determination of the urea in liquid fluorescent whitening agent products
GB/T 29661-2013
Determination of urea content in cosmetics - Enzymatic method
SN/T 0840-2015
GB/T 7603-2012
Determination of the aromatic carbon content in mineral insulating oil
SN/T 5582-2023
HG/T 5375-2018
Determination of acrylamide content in aqueous adhesive
DB37/T 2121-2012
GB/T 3780.26-2018
Carbon black—Part 26:Determination of carbon content in carbon black feedstock oils
GB/T 6730.51-2023
Iron ores—Determination of carbon content in carbonate—The caustic asbestos absorption gravimetric method
GB/T 35306-2023
Determination of carbon and oxygen content in single crystal silicon—Low temperature fourier transform infrared spectrometry method
GB/T 26196-2010
Fireworks and firecrackers - Determination of carbon content in pyrotechnic compositions - High frequency-infrared absorption method
SN/T 3810-2014
Determination of nitrogen content in urea and ammonium sulphate - X-ray fluorescence spectrometry
HG/T 29-2010
Quantitative analysis of the content of carbon in carbon fiber method by high frequency infrared carbon sulphur analyzer
HS/T 29-2010
DB44/T 1821-2016
SN/T 5347.1-2021
GB/T 2469-1996
Pyrites and concentrate--Determination of carbon content--Caustic asbestos gravimetric method
JB/T 6647-2011
GB/T 18932.1-2002
Method for the determination of C-4 plant sugars in honey--Stable carbon isotope ratio method
YS/T 987-2021