GB/T 35996-2018(\u82f1\u6587\u7248)
磷矿石和磷精矿中八种元素含量的快速测定 X射线荧光光谱法
GB/T 44290-2024
Calculation method of biogenic carbon content in wood and wood-based products
GB/T 5511-2008
Cereals and pulses—Determination of the nitrogen content and calculation of the crude protein content—Kjeldahl method
UNE-EN 14346:2007
Characterization of waste - Calculation of dry matter by determination of dry residue or water content
BS 04/30116805 DC
BS EN 14346. Characterisation of waste. Calculation of dry matter by determination of dry residue and wet content
HG/T 3494-1999
Chemical reagent Fluorescein
GB/T 42490-2023
Soil quality—Determination of total content and isotope ratio of organic carbon and nitrogen of soil and biological samples—Stable isotope ratio mass spectrometry
GB/T 9695.29-2008
Meat products - Determination of vitamin C content
32017R1409
GB/T 38339-2019
Determination of phosphorus content in fluorescent brightener products
GB/T 38223-2019
Determination of ferrite content in austenitic stainless steel castings
GB/T 38169-2019
Determination of caulerpin content—High performance liquid chromatography
GB/T 33401-2016
Determination of the urea in liquid fluorescent whitening agent products
DB62/T 4671-2023
DB43/T 994-2015
GB/T 2677.10-1995
Fibrous raw material--Determination of holocellulose
JJG 2096-2017
Concentration of Element Based on Isotope Dilution Mass Spectrometry
NY/T 3675-2020
Determination of thearubigin and theabrownine in black tea-Spectrophotometry
GB/T 2677.8-1994
Fibrous raw material--Determination of acid-insoluble lignin
FZ/T 50010.5-2023