MT/T 1074-2008
Classification for alkali metal(potassium,sodium)content in coal'
MT/T 1074-2007
SN/T 3809-2014
Determination of potassium content in potassium chloride and potassium sulphate - X-ray fluorescence spectrometry
JC/T 2336-2015
Determination of silicon,potassium,sodium,calcium,magnesium and iron content in carbon fiber
20241643-T-326
Determination of rapidly available potassium and slowly available potassium in soil
SN/T 1014.1-2001
DB23/T 1578-2014
GB/T 42511-2023
Hardmetals—Determination of calcium,copper,iron,potassium,magnesium,manganese,sodium,nickel and zinc in cobalt metal powders—Flame atomic absorption spectrometric method
DB34/T 3082-2018
DB63/T 1421-2015
SN/T 2725-2010
Determination of sodium,potassium and iron content in coal tar oil and anthracene oil-Atomic absorption spectrometric method
HG/T 2957.7-2004
GB/T 12658-1990
Paper, board and pulp—Determination of potassium and sodium content
GB/T 15057.8-1994
Limestonefor chemical industry--Determination of sulfur content--Gravimetric and combustion-iodate titrimetric methods
HB/Z 5107.4-2004
Methods for analysis of chemical oxidation solution for magnesium alloy-Part 4:Determination of aluminum potassium sulfate content in aluminum potassium sulfate oxidation solution by EDTA volumetric method
NB/T 11260-2023
Determination of silicon,aluminum,iron,calcium,magnesium,sodium,potassium,phosphorus,titanium and manganese in coal gangue—X-ray fluorescence spectrometric method
DB23/T 1906-2017
DB45/T 2106-2019
NB/SH/T 0992-2019
Standard test method for determination of Na,K,Ca and Mg in fatty acid methyl ester by inductively coupled plasma optical emission spectrometry (ICP-OES)
HB/Z 5109.16-2001