现行

DB65/T 602.4-2001

新疆土壤分析方法 土壤硝态氮的测定

2001-11-26

现行

DB37/T 1897-2011

土壤硝态氮的测定 离子色谱法

2011-06-16

现行

GB/T 42487-2023

土壤质量 土壤硝态氮、亚硝态氮和铵态氮的测定 氯化钾溶液浸提流动分析法
Soil quality—Determination of nitrate, nitrite and ammonium in soils—Extraction with potassium chloride solution and determination using automated method with segmented flow analysis

2023-03-17

现行

GB/T 42485-2023

土壤质量 土壤硝态氮、亚硝态氮和铵态氮的测定 氯化钾溶液浸提手工分析法
Soil quality—Determination of nitrate, nitrite and ammonium in soils—Extraction with potassium chloride solution and determination with manual method

2023-03-17

现行

DB22/T 2270-2018

农田土壤中铵态氮、硝态氮的测定 流动注射分析法

2018-07-30

现行

GB/T 32737-2016

土壤硝态氮的测定 紫外分光光度法
Determination of nitrate nitrogen in soil—Ultraviolet spectrophotometry method

2016-08-29

现行

ISO 14255-1998

Soil quality — Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant
土壤质量——氯化钙溶液萃取法测定风干土壤中硝态氮、铵态氮和可溶性总氮

1998-04-23

现行

UNE 77306-1999

SOIL QUALITY. DETERMINATION OF NITRATE NITROGEN, AMMONIUM NITROGEN AND TOTAL SOLUBLE NITROGEN IN AIR-DRY SOIL USING CALCIUM CHLORIDE SOLUTION AS EXTRACTANT.
土壤质量 以氯化钙溶液为萃取剂测定风干土壤中的硝态氮、铵态氮和可溶性总氮

1999-05-26

现行

KS I ISO 14255(2019 Confirm)

토양의 질－공기 건조 토양에서 염화칼슘용액으로 추출한 질산성 질소, 암모니아성 질소 및 총 가용성 질소 측정 방법
土壤质量用氯化钙溶液作萃取剂测定风干土壤中硝态氮、铵态氮和总可溶性氮

2009-12-18

现行

GB/T 42488-2023

土壤质量 土壤中无机态氮15N丰度的测定 稳定同位素比值质谱法
Soil quality—Determination of nitrogen-15 abundance of inorganic nitrogen in soil—Stable isotope ratio mass spectrometry

2023-03-17

现行

DB65/T 4631.2-2023

土壤检测方法 有效态元素的测定 第2部分：水解性氮含量的测定

2024-02-23

现行

ASTM D5373-21

Standard Test Methods for Determination of Carbon, Hydrogen and Nitrogen in Analysis Samples of Coal and Carbon in Analysis Samples of Coal and Coke
测定煤分析样品中碳氢氮和煤和焦炭分析样品中碳的标准试验方法

2021-04-01

现行

ASTM D8295-19

Standard Test Method for Determination of Shear Wave Velocity and Initial Shear Modulus in Soil Specimens using Bender Elements
用弯曲元件测定土壤样品中剪切波速和初始剪切模量的标准试验方法

2019-11-01

现行

EN ISO 23753-1-2019/A1-2020

Soil quality - Determination of dehydrogenases activity in soils - Part 1: Method using triphenyltetrazolium chloride (TTC) - Amendment 1 (ISO 23753-1:2019/Amd 1:2020)
土壤质量.土壤中脱氢酶活性的测定.第1部分:使用氯化三苯基四氮唑（TTC）的方法.修改件1

2020-11-04

现行

AS 4969.6-2008

Analysis of acid sulfate soil - Dried samples - Methods of test, Method 6: Determination of acid extractable sulfur in soil residue after peroxide oxidation (SRAS)
酸性硫酸盐土壤的分析.干燥样品.试验方法 方法6:过氧化物氧化（SRAS）后土壤残渣中酸可提取硫的测定

2008-06-30

现行

UNE 73340-3-2004

Procedure to obtain samples for the determination of environmental radioactivity. Analytical methods. Part 3: Determination of 89Sr and 90Sr concentration in soils and sediments.
获取环境放射性测定样品的程序 分析方法 第3部分:土壤和沉积物中89Sr和90Sr浓度的测定

2004-12-17