DIN EN ISO 20483-2007

Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method (ISO 20483:2006)

实施日期：2007-02-01

ISO 21068-3-2008

含碳化硅原材料和耐火制品的化学分析 第3部分:氮、氧、金属和氧化物组分的测定

Chemical analysis of silicon-carbide-containing raw materials and refractory products -- Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents

发布日期：2008-08-01  实施日期：2008-08-01

DIN ISO 11261-1997

土壤质量.总氮测定.修改后的Kjeldahl法

Soil quality - Determination of total nitrogen - Modified Kjeldahl method (ISO 11261:1995)

ISO 15672-2000

橡胶和橡胶配合剂 用自动分析仪测定总氮含量

Rubber and rubber additives -- Determination of total nitrogen content using an automatic analyser

发布日期：2000-07-01  实施日期：2000-07-01

NY/T 1977-2010

水溶肥料总氮、磷、钾含量的测定

Water-soluble fertilizers-Determination of total nitrogen,phosphorus and potassium content

发布日期：2010-12-23  实施日期：2011-02-01

BS EN ISO 16634-1-2008

Lebensmittelerzeugnisse. Bestimmung des Gehaltes an Gesamtstickstoff mit dem Verbrennungsverfahren nach Dumas und Berechnung des Gehaltes an Rohprotein. ?lsaaten und Futtermittel Food products. Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content Part 1:Oilseeds and animal feeding stuffs (ISO 16634-1:2008) Produits alimentaires. Détermination de la teneur en azote total par combustion selon le principe Dumas et ca

实施日期：2008-11-30

EN ISO 10720-2007

Steel and iron. Determination of nitrogen content. Thermal conductimetric method after fusion in a current of inert gas

实施日期：2007-03-01

SN/T 0736.5-2010

进出口化肥检验方法 第5部分:氮含量的测定

Test method of import and export fertilizers-Part 5:Determination of nitrogen content

发布日期：2010-11-01  实施日期：2011-05-01

NF G06-006-15-2010

Textiles - Quantitative chemical analysis - Part 15 : mixtures of jute and certain animal fibres (method by determining nitrogen content).

YC/T 33-1996

烟草及烟草制品 总氨的测定 克达尔法

Tobacco and tobacco products-Determination of total nitrogen-Kjeldahl method

发布日期：1996-10-07  实施日期：1997-07-01

BS EN 12260-2003

水质 氮的测定 随着氮氧化物的氧化测定结合氮(TNb)

Water quality. Determination of nitrogen. Determination of bound nitrogen (TN$db), following oxidation to nitrogen oxides

ISO 10720-1997

钢和铁.氮含量的测定.惰性气体流中溶解物的热传导法

Steel and iron -- Determination of nitrogen content -- Thermal conductimetric method after fusion in a current of inert gas

发布日期：1997-08-01  实施日期：1997-08-01

BS EN ISO 1833-15-2010

Textiles. Quantitative chemical analysis. Mixtures of jute and certain animal fibres (method by determining nitrogen content)

发布日期：2011-02-28  实施日期：2011-02-28

BS EN ISO 20483-2013

谷物和豆类 氮含量测定和粗蛋白质含量的计算.基耶达法

Cereals and pulses. Determination of the nitrogen content and calculation of the crude protein content. Kjeldahl method

发布日期：2013-12-31  实施日期：2013-12-31

ISO 5983-2-2009

动物饲料 含氮量的测定和粗蛋白含量的计算 第2部分:分块消化法和蒸汽蒸馏法

Animal feeding stuffs -- Determination of nitrogen content and calculation of crude protein content -- Part 2: Block digestion and steam distillation method

发布日期：2009-06-01  实施日期：2009-06-01

NF U42-503-2010

Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods.

DIN EN 13654-1-2002

土壤及其增长促进剂.氮的测定.第1部分:改良的K氏法

Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjildahl method

DIN EN ISO 10720-2007

Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (ISO 10720:1997)

实施日期：2007-06-01

DIN EN ISO 9702-1998

塑料.胺环氧树脂硬化剂.伯胺、仲胺和叔胺群氮气含量的测定

Plastics - Amine epoxide hardeners - Determination of primary, secondary and tertiary amine group nitrogen content (ISO 9702:1996); German version EN ISO 9702:1998

BS EN 13716-2002

表面 活性剂 基本氮总量的测定 电势滴定法

Grenzflaechenaktive Stoffe. Bestimmung des Gehalts an Gesamt-Basen-Stickstoff. Potentiometrische Titration Surface Active Agents-Determination of Total Base Nitrogen-Potentiometric Titration Agents de ...

实施日期：2002-03-05