GB/T 34532-2017
Coking wastewater—Determination of ammonia nitrogen content—Formaldehyde method
GB/T 41965-2022
Photography—Processing waste—Determination of total amino nitrogen (microdiffusion Kjeldahl method)
GB/T 41964-2022
Photography—Processing waste—Determination of ammoniacal nitrogen (microdiffusion method)
GB/T 3600-2000
Fertilizers--Determination of ammoniacal nitrogen content--Formaldehyde method
GB/T 3595-2000
Fertilizers--Determination of ammoniacal nitrogen content--Titrimetric method after distillation
GB/T 24583.1-2019(\u82f1\u6587\u7248)
钒氮合金 钒含量的测定 硫酸亚铁铵滴定法
GB/T 24583.5-2019(\u82f1\u6587\u7248)
钒氮合金 磷含量的测定 铋磷钼蓝分光光度法
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 24583.8-2019(\u82f1\u6587\u7248)
钒氮合金 硅、锰、磷、铝含量的测定 电感耦合等离子体原子发射光谱法
20243166-T-606
Analysis of water treatment chemicals—Part 3: Determination of ammonia nitrogen
KS M ISO 3332-2017
Ammonium sulphate for industrial use — Determination of ammoniacal nitrogen content — Titrimetric method after distillation
KS M ISO 3332-2017(2022)
Ammonium sulphate for industrial use — Determination of ammoniacal nitrogen content — Titrimetric method after distillation
\u0413\u041e\u0421\u0422 29313-92
Fertilizers. Method for determination of ammoniacal nitrogen content (titrimetric) after distillation
PIMA IT4.48
Photography (Processing) - Effluents - Determination of Ammoniacal Nitrogen Content - Microdiffusion Method
\u0413\u041e\u0421\u0422 26180-84
Fodder. Determination of ammonia nitrogen content and actual acidity
KS A ISO 9006-2008(2018)
Uranium metal and uranium dioxide powder and pellets-Determination of nitrogen content-Method using ammonia-sensing electrode
KS A ISO 9006-2008(2023)
Uranium metal and uranium dioxide powder and pellets-Determination of nitrogen content-Method using ammonia-sensing electrode
\u0413\u041e\u0421\u0422 29304-92
Ammonium nitrate for industrial use. Method for determination of ammoniacal nitrogen content (titrimetric) after distillation
KS M ISO 5314-2007(2012)
Fertilizers-Determination of ammoniacal nitrogen content-Titrimetric method after distillation
\u0413\u041e\u0421\u0422 28990-91
Fertilizers. Determination of ammoniacal nitrogen content in presence of other substances which realise ammonia when treated with sodium hydroxide. Tetrimetric method