GB/T 6730.44-2017(\u82f1\u6587\u7248)
铁矿石 锌含量的测定 1-(2-吡啶偶氮)-2-萘酚分光光度法
GB/T 24199-2009
Refined pyridine - Determination of pyridine content - Gas chromatographic method
YB/T 5072-2014
Determination of pyridine and homologues contents of curde light pyridine
GB/T 3711-2008
Method of determination for neutral oils and pyridine bases contents of phenol products
GB/T 5009.195-2003
Determination of chromium picolinate inhealth foods
GB/T 26626-2011
Animal and vegetable fats and oils - Determination of water content - Karl Fischer method (pyridine free)
KS M 1981-2002(2007)
Acetaldehyde for industrial usedetermination of iron content-2,2′-bipyridyl photometric method
YB/T 5074-2005
Determination of water content of pyridine products
GB/T 37196-2018
Plastics—Polyether polyols/polymeric polyols—Determination of aldehydes and ketones
GB/T 14571.3-2022
Test method of ethylene glycol for industrial use—Part 3:Determination of content of aldehydes
QB/T 4200-2011
Leather and fur-Chemical tests-Determination of free glutaraldehyde content
SN/T 5028-2017
DB45/T 1245-2015
GH/T 1109-2015
Determination of methylglyoxal in honey—High performance liquid chromatography
DB12/T 136-2002
DB44/T 2040-2017
GB/T 6730.44-2017e
Iron ores—Determination of zinc content—1-(2-pyridylazo)-2-naphthoI spectrophotometric method
GB/T 6730.44-2017
Iron ores—Determination of zinc content—1-(2-pyridylazo)-2-naphthol spectrophotometric method
GB/T 12688.5-2019
Test method of styrene for industrial use—Part 5:Determination of the content of total aldehydes—Titrimetric method
DB32/T 3636-2019