GB/T 42955-2023 Active National standards

GB/T 42955-2023 Determination of total nitrogen content for fertilizers—Dumas combustion method

GB/T 42955-2023 Determination of total nitrogen content for fertilizers—Dumas combustion method

Publish Date: 2023-08-06 Implement Date: 2024-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 42955-2023

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Fertilizers and pesticides

ICS Name: Fertilizer

Publish Date: 2023-08-06

Implement Date: 2024-03-01

Pages: 6 pages

Scope

This document describes the Dumas combustion method for determining the total nitrogen content in fertilizers. This document is suitable for determining the total nitrogen content in fertilizers.
This document is not suitable for determining the total nitrogen in ammonium bicarbonate.
Note: When the sample weighs in at 100 mg, the detection limit of the method described in this document is 0.02%.

Development Information

Word Count: 13 Thousand words Pages: 6 pages

Referenced Standards

GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values NY/T 887-2004 Determination of density of liquid fertilizer NY/T 887-2010 Determination of density of liquid fertilizer

Related Standards

GB/T 3598-1983 Abolished

GB/T 3598-1983 Fertilizers—Determination of urea nitrogen content—Urease method

Publish Date: 1983-04-11

GB 8569-1997 Replaced

GB 8569-1997 Packing of solid chemical fertilizers

Publish Date: 1987-01-01

GB/T 8570.1-1988 Replaced

GB/T 8570.1-1988 Liquefied anhydrous ammonia—Taking a laboratory sample

Publish Date: 1988-01-03

GB/T 8570.2-1988 Replaced

GB/T 8570.2-1988 Liquefied anhydrous ammonia—Estimating of ammonia content

Publish Date: 1988-01-03

GB/T 8570.3-1988 Replaced

GB/T 8570.3-1988 Liquefied anhydrous ammonia—Determination of residue content—Gravimetric method

Publish Date: 1988-01-03

GB/T 8570.4-1988 Replaced

GB/T 8570.4-1988 Liquefied anhydrous ammonia—Determination of residue content—Titrimetric method

Publish Date: 1988-01-03