LY/T 1228-2015 Active Industry standards-Forestry

LY/T 1228-2015 Nitrogen determination methods of forest soils

LY/T 1228-2015 Nitrogen determination methods of forest soils

Publish Date: 2015-10-19 Implement Date: 2016-01-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: LY/T 1228-2015

Standard Type: Industry standards

Standard Status: Active

is_force_gb: no

CCS Name: \nSoil and fertilizer

ICS Name: The chemical properties of soil

Publish Date: 2015-10-19

Implement Date: 2016-01-01

Pages: 21 pages

Scope

This standard specifies the methods for determining nitrogen in forest soils, including the Kjeldahl nitrogen determination method, the continuous flow analyzer method, and the elemental analyzer method. It also describes the alkali-soluble nitrogen determination method for forest soils, the colorimetric method for determining hydrolyzable nitrogen in forest soils, and the continuous flow analyzer method for determining nitrate nitrogen and ammonium nitrogen in forest soils.
This standard is applicable to the determination of total nitrogen, hydrolyzable nitrogen, nitrate nitrogen, and ammonium nitrogen in forest soils.

Development Information

Word Count: 36 Thousand words Pages: 21 pages

Replace the following standards

LY/T 1228-1999 Determination of total nitrogen in forest soil LY/T 1229-1999 Determination of hydrolyzable nitrogen in forest soil LY/T 1230-1999 Determination of nitrate nitrogen in forest soil LY/T 1231-1999 Determination of ammonium nitrogen in forest soil

Referenced Standards

GB/T 601-2002 Chemical reagent Preparations of standard volumetric solutions GB/T 601-2016 Chemical reagent—Preparations of reference titration solutions GB/T 603-2002 Chemical reagent—Preparations of reagent solutions for use in test methods GB/T 603-2023 Chemical reagent—Preparations of reagent solutions for use in test methods GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods LY/T 1210-1999 Field sampling and preparation of forest soil samples

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