ISO 6853-2001

摄影冲洗废液.氨态氮总含量的测定(微扩散法)

Photography -- Processing waste -- Determination of ammoniacal nitrogen (microdiffusion method)

发布日期：2001-12-01  实施日期：2001-12-01

GB/T 3595-2000

肥料中氨态氮含量的测定 蒸馏后滴定法

Fertilizers--Determination of ammoniacal nitrogen content--Titrimetric method after distillation

发布日期：2000-07-31  实施日期：2001-03-01

BS EN 15475-2009

Düngemittel. Bestimmung von Ammoniumstickstoff Fertilizers. Determination of ammoniacal nitrogen Engrais. Détermination de l'azote ammoniacal

实施日期：2009-02-28

ISO 5506-1988

大豆制品 尿素酶活性的测定

Soya bean products -- Determination of urease activity

发布日期：1988-07-31  实施日期：1988-07-31

NF U42-145-2009

Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd.

JIS K0400-42-60-2000

水质 铵的定量 第1部分:手动光谱测定法

Water quality -- Determination of ammonium -- Part 1: Manual spectrometric method

BS EN 15476-2009

Düngemittel. Bestimmung von Nitrat-und Ammoniumstickstoff nach Devarda Fertilizers. Determination of nitric and ammoniacal nitrogen according to Devarda Engrais. Détermination de l'azote nitrique et ammoniacal selon Devarda

实施日期：2009-02-28

DIN EN 15476-2009

Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda

实施日期：2009-04-01

EN 15475-2009

Fertilizers. Determination of ammoniacal nitrogen

实施日期：2009-01-01

BS EN 15559-2009

Düngemittel. Bestimmung von Nitrat-und Ammoniumstickstoff nach Arnd Fertilizers. Determination of nitric and ammoniacal nitrogen according to Arnd Engrais. Dosage de l'azote nitrique et ammoniacal selon Arnd

实施日期：2009-06-30

GB/T 7851-1987

森林土壤铵态氮的测定

Determination of ammonium nitrogen in forest soil

DIN EN 15559-2009

Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd

实施日期：2009-06-01

BS 5551-4.1.4-1984

Duengemittel. Chemische Analyse. Bestimmung des Stickstoffgehalts. Verfahren zur Bestimmung des ammoniakalischen Stickstoffgehalts bei Vorhandensein anderer Substanzen,die bei Behandlung mit Natriumhydroxid Ammoniak freisetzen (titrimetrisches Verfahren) Fertilizers Part 4:Chemical Analysis Sec 4 Determination of Nitro-gen Subsection 4.1.4:Method for Determination of Ammoniacal Nitrogen Content in the Presence of Other Substance Which Rel Ammonia When Treated with Sodium Hydroxide (Titrimetric M

实施日期：1984-01-01

JIS K0400-42-80-2000

水质 铵的定量 电位法

Water quality -- Determination of ammonium -- Potentiometric method

GB 3599-1983

碳酸氢铵和氨水中氨态氮含量的测定 酸量法

Determination of ammoniacal nitrogen content in ammonium hydrogen carbonate and ammonia water--Acidimetric method

BS 4267-1-1988

硝酸铵.第1部分:氨型氮含量的测定方法

Ammoniumnitrat. Verfahren zur Bestimmung des Ammoniakstickstoffgehalts Ammonium Nitrate Part 1:Method for Determination of Ammoniacal Nitrogen Content Nitrate d'ammonium. Methode de dosage de l'azote a...

实施日期：1988-01-01

BS EN ISO 11732-2005

水质.氨氮的测定.流动分析(CFA和FIA)和光谱测定法

Wasserbeschaffenheit. Bestimmung von Ammoniumstickstoff. Verfahren mittels Fliessanalytik (CFA und FIA) und spektrometrischer Detektion Water quality Determination of ammonium nitrogen Method by flow a...

实施日期：2005-02-17

EN 15558-2009

Fertilizers. Determination of nitric and ammoniacal nitrogen according to Ulsch

实施日期：2009-01-01

ISO 5314-1981

肥料 氨态氮量的测定 蒸馏后滴定法

Fertilizers -- Determination of ammoniacal nitrogen content -- Titrimetric method after distillation

发布日期：1981-05-01  实施日期：1981-05-01

BS 6068-2.10-1984

Water quality. Physical, chemical and biochemical methods. Determination of ammonium: potentiometric method