UNE-EN 15475-2009
Fertilizers - Determination of ammoniacal nitrogen
肥料.氨态氮的测定
2009-05-27
BS EN 15475-2009
Fertilizers. Determination of ammoniacal nitrogen
肥料 氨氮的测定
2009-02-28
DIN EN 15475
Fertilizers - Determination of ammoniacal nitrogen
肥料.氨态氮的测定；德文版EN 15475:2009
2009-04-01
GOST EN 15475-2013
Удобрения. Определение содержания аммонийного азота
肥料 氨氮测定
2013-06-07
ISO 25475-2016
Fertilizers — Determination of ammoniacal nitrogen
肥料 - 氨氮测定
2016-04-07
BS 5551-4.1.2-1982
Fertilizers. Chemical analysis. Determination of nitrogen-Determination of ammoniacal nitrogen, titrimetric method after distillation
肥料 化学分析 氮的测定 蒸馏后滴定法测定氨氮
1982-07-30
UNE-EN 15559-2009
Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd
肥料.根据Arnd测定硝酸和氨氮
2009-10-28
UNE-EN 15476-2009
Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
肥料.根据Devarda测定硝酸和氨氮
2009-05-27
BS 08/30179301 DC
BS EN 15475. Fertilizers. Determination of ammoniacal nitrogen
英国标准EN 15475 肥料 氨氮的测定
2008-05-29
UNE-EN 15558-2009
Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
肥料.根据Ulsch测定硝酸和氨氮
2009-10-28
BS EN 15559-2009
Fertilizers. Determination of nitric and ammoniacal nitrogen according to Arnd
肥料 根据Arnd测定硝酸和氨氮
2009-05-31
DIN EN 15559
Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd
肥料.根据Arnd测定硝酸和氨氮；德文版EN 15559:2009
2009-06-01
BS EN 15558-2009
Fertilizers. Determination of nitric and ammoniacal nitrogen according to Ulsch
肥料 根据Ulsch测定硝酸和氨氮
2009-02-28
BS EN 15476-2009
Fertilizers. Determination of nitric and ammoniacal nitrogen according to Devarda
肥料 根据Devarda测定硝酸和氨氮
2009-02-28
DIN EN 15476
Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
肥料.根据Devarda测定硝酸和氨氮；德文版EN 15476:2009
2009-04-01
BS 4267-1-1988
Ammonium nitrate-Method for determination of ammoniacal nitrogen content
硝酸铵
1988-07-29
DIN EN 15558
Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
肥料.根据Ulsch测定硝酸和氨氮；德文版EN 15558:2009
2009-06-01
GOST EN 15476-2013
Удобрения. Определение нитратного и аммонийного азота методом Деварда
肥料 根据Devarda测定硝酸和氨氮
2013-11-05
GOST EN 15559-2013
Удобрения. Определение нитратного и аммонийного азота методом Арнда
肥料 根据Arnd测定硝酸和氨氮
2013-11-14
GB/T 3600-2000
肥料中氨态氮含量的测定 甲醛法
Fertilizers--Determination of ammoniacal nitrogen content--Formaldehyde method
2000-07-31