GB/T 30053-2013
Determination of Benzene, toluene and xylene in crude benzene
20240837-T-469
Determination of nitrogen content in benzene products of coal carbonization
T/SXCIES 002-2020
YS/T 1341.9-2019
Methods for chemical analysis of crude zinc-Part 9:Determination of germanium content-Benzene fluorenone spectrophotometry
\u0413\u041e\u0421\u0422 ISO/TS 17837-2013
Processed cheese products. Determination of nitrogen content and crude protein calculation. Kjeldahl method
GB/T 14327-2009
Determination of thiophene content in benzene
GB/T 42263-2022
Determination of nitrogen content in silicon single crystal—Secondary ion mass spectrometry method
GB/T 17674-2021
Determination of nitrogen in crude oil—Boat-inlet chemiluminescence
QB/T 5656-2021
GB/T 24200-2009
Determination of phenol and homologues contents of crude phenol
DB34/T 3316-2019
GB/T 10511-2008
Determination of total nitrogen content for nitrophosphate - Titrimetric method after distillation
SN/T 0840-2015
\u0413\u041e\u0421\u0422 \u0420 \u0418\u0421\u041e 16634-1-2011
Food products. Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content. Part 1. Oilseeds and animal feeding stuffs
EN ISO 8968-1:2014
ISO 16634-2:2016
Food products — Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content — Part 2: Cereals, pulses and milled cereal products
GB/T 30931-2014
Determination of Benzalkonium Chloride in cosmetics―High performance liquid chromatography
DB37/T 2735-2015
GB/T 41153-2021
Determination of boron, aluminum and nitrogen impurity content in silicon carbide single crystal—Secondary ion mass spectrometry
\u0413\u041e\u0421\u0422 \u0420 54390-2011
Food products. Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content. Part 2. Cereals, pulses and milled cereal products