Registration number (WIID)Project No.TitleStatus
23081ISO 14255:1998Soil quality — Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractantStandarts spēkā
23081ISO 14255:1998Soil quality — Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractantStandarts spēkā
23082ISO/DIS 14256-1Soil quality — Determination of nitrate, nitrite and ammonium in field moist soils by extraction with potassium chloride solution — Part 1: Manual methodIzstrādē
23116ISO 13877:1998Soil quality — Determination of polynuclear aromatic hydrocarbons — Method using high -performance liquid chromatographyAtcelts
23116ISO 13877:1998Soil quality Determination of polynuclear aromatic hydrocarbons Method using high -performance liquid chromatographyAtcelts
23117ISO 13878:1998Soil quality — Determination of total nitrogen content by dry combustion ("elemental analysis")Standarts spēkā
23117ISO 13878:1998Soil quality — Determination of total nitrogen content by dry combustion ("elemental analysis")Standarts spēkā
23140ISO 14235:1998Soil quality — Determination of organic carbon by sulfochromic oxidationAtcelts
23140ISO 14235:1998Soil quality — Determination of organic carbon by sulfochromic oxidationStandarts spēkā
23695ISO 11465:1993/Cor 1:1994Soil quality — Determination of dry matter and water content on a mass basis — Gravimetric method — Technical Corrigendum 1Standarts spēkā
Displaying 31-40 of 169 results.