现行

LY/T 1229-1999

森林土壤水解性氮的测定
Determination of hydrolyzable nitrogen in forest soil

1999-07-15

现行

LY/T 1228-2015

森林土壤氮的测定
Nitrogen determination methods of forest soils

2015-10-19

现行

LY/T 1228-1999

森林土壤全氮的测定
Determination of total nitrogen in forest soil

1999-07-15

现行

LY/T 1237-1999

森林土壤有机质的测定及碳氮比的计算
Determination of organic matter in forest soil and calculation of carbon-nitrogen ratio

1999-07-15

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

KS I ISO 14255(2023 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空气干燥土壤中的硝酸盐氮、铵态氮和总可溶性氮

2009-12-18

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

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

LY/T 1269-1999

森林植物与森林枯枝落叶层全氮的测定
Determination of total nitrogen in forest plant and forest floor

1999-07-15

现行

DIN ISO 14255

Soil quality - Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant (ISO 14255:1998)
土壤质量.用氯化钙溶液作为萃取剂测定风干土壤中的硝酸盐氮、铵态氮和总可溶性氮（ISO 14255-1998）

1998-11-01

现行

NY/T 1116-2014

肥料 硝态氮、铵态氮、酰胺态氮含量的测定
Fertilizers-Determination of nitrate nitrogen,ammonium nitrogen,amide nitrogen contents

2014-03-24

现行

LY/T 1219-1999

森林土壤温度的测定
Determination of forest soil temperature

1999-07-15

现行

LY/T 1223-1999

森林土壤坚实度的测定
Determination of forest soil hardness

1999-07-15

现行

LY/T 1224-1999

森林土壤土粒密度的测定
Determination of soil particle density in forest soil

1999-07-15

现行

GOST 27753.8-1988

Грунты тепличные. Метод определения аммонийного азота
温室法测定铵态氮

现行

GOST 26716-1985

Удобрения органические. Методы определения аммонийного азота
有机肥料 测定铵态氮的方法

现行

AWWA REUSE52086

Nitrogen Removal During Soil Aquifer Treatment by Anaerobic Ammonium Oxidation (Anammox)
厌氧氨氧化（Anammox）处理土壤含水层过程中的脱氮

2000-01-01

现行

LY/T 1266-1999

森林土壤有效硅的测定
Determination of available silica in forest soil

1999-07-15

现行

LY/T 1218-1999

森林土壤渗透率的测定
Determination of forest soil percolation rate

1999-07-15