现行

BS EN ISO 14238-2013

Soil quality. Biological methods. Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes
土壤质量 生物学方法 土壤中氮矿化和硝化作用的测定以及化学物质对这些过程的影响

2013-12-31

现行

KS I ISO 14238

토양의 질 — 생물학적 방법 — 토양에서 질소무기화 및 질산화의 측정과 화학물질이 이들 과정에 미치는 영향
土壤质量生物法土壤中氮矿化和硝化作用的测定及化学物质对这些过程的影响

2018-12-12

现行

GOST ISO 14238-2014

Качество почвы. Биологические методы. Определение минерализации и нитрификации азота в почвах и влияние химических веществ на эти процессы
土壤质量生物学方法 土壤中氮矿化和硝化的测定以及化学品对这些过程的影响

2014-05-30

现行

UNE 77326-2004

Soil quality -- Biological methods -- Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes
土壤质量生物学方法土壤中氮矿化和硝化作用的测定及化学物质对这些过程的影响

2004-04-30

现行

ISO 14238-2012

Soil quality — Biological methods — Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes
土壤质量——生物方法——土壤中氮矿化和硝化作用的测定以及化学物质对这些过程的影响

2012-07-31

现行

DIN ISO 14238

Soil quality - Biological methods - Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes (ISO 14238:1997)
土壤质量.生物方法.土壤中氮矿化和硝化作用的测定以及化学物质对这些过程的影响（ISO 14238-1997）

1999-10-01

现行

DIN EN ISO 14238

Soil quality - Biological methods - Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes (ISO 14238:2012)
土壤质量.生物方法.土壤中氮矿化和硝化作用的测定以及化学品对这些过程的影响（ISO 14238-2012）；德国版本EN ISO 14238:2013

2014-03-01

现行

BS 11/30227274 DC

BS ISO 14238. Soil quality. Biological methods. Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes
BS ISO 14238 土壤质量 生物学方法 土壤中氮矿化和硝化作用的测定以及化学物质对这些过程的影响

2011-03-18

现行

ISO 11261-1995

Soil quality — Determination of total nitrogen — Modified Kjeldahl method
土壤质量——总氮&mdash的测定；改良凯氏定氮法

1995-03-09

现行

KS I ISO 11261(2018 Confirm)

토양의 질－총질소 함량 측정방법 (수정된 켈달법)
土壤质量总氮的测定改良凯氏定氮法

2008-11-10

现行

KS I ISO 11261(2021 Confirm)

토양의 질－총질소 함량 측정방법 (수정된 켈달법)
土壤质量总氮的测定改良凯氏定氮法

2008-11-10

现行

UNE 77318-2001

Soil quality. Determination of total nitrogen. Modified Kjeldahl method.
土壤质量 总氮的测定 改良凯氏定氮法

2001-09-30

现行

BS 7755-3.7-1995

Soil quality. Chemical methods-Determination of total nitrogen. Modified Kjeldahl method
土壤质量 化学方法 总氮的测定 改良凯氏定氮法

1995-10-15

现行

DIN 19746

Soil quality - Determination of mineral nitrogen (nitrat and ammonium) in soil profiles (Nmin laboratory method)
土壤质量.土壤剖面中矿质氮（硝酸盐和铵）的测定（Nmin实验室法）

2005-06-01

现行

GB/T 42490-2023

土壤质量 土壤与生物样品中有机碳含量与碳同位素比值、全氮含量与氮同位素比值的测定 稳定同位素比值质谱法
Soil quality—Determination of total content and isotope ratio of organic carbon and nitrogen of soil and biological samples—Stable isotope ratio mass spectrometry

2023-03-17

现行

BS 7755-4.4.2-1997

Soil quality. Biological methods. Effects of pollutants on microbes. Determination of soil microbial mass. Fumigation-extraction method
土壤质量 生物学方法 污染物对微生物的影响 土壤微生物质量的测定 熏蒸提取法

1997-05-15

现行

BS 7755-4.4.1-1997

Soil quality. Biological methods. Effects of pollutants on microbes. Determination of soil microbial mass. Substrate-induced respiration method
土壤质量 生物学方法 污染物对微生物的影响 土壤微生物质量的测定 基质诱导呼吸法

1997-05-15

现行

DIN ISO 11261

Soil quality - Determination of total nitrogen - Modified Kjeldahl method (ISO 11261:1995)
土壤质量总氮的测定改良凯氏定氮法

1997-05-01