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GB/T 2441.4-2001 Replaced National standards

GB/T 2441.4-2001 Determination of urea—Determination of iron content—1,10-Phenanthroline spectrophotometric method

GB/T 2441.4-2001 Determination of urea—Determination of iron content—1,10-Phenanthroline spectrophotometric method

Publish Date: 2001-07-26 Implement Date: 2002-01-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 2441.4-2001
Standard Type: National standards
Standard Status: Replaced
is_force_gb: no
CCS Name: Fertilizers and chemical soil conditioners
ICS Name: Fertilizer
Publish Date: 2001-07-26
Implement Date: 2002-01-01
Pages: 6 pages

Development Information

Word Count: 9 Thousand words Pages: 6 pages

Same series standard

GB/T 2441.1-2001 Determination of urea—Determination of total nitrogen content GB/T 2441.2-2001 Determination of urea—Determination of biuret content—Spectrophotometric method GB/T 2441.3-2001 Determination of urea—Determination of water content—Karl Fisher method GB/T 2441.5-2001 Determination of Urea—Determination of alkalinity—Titrimetric method GB/T 2441.6-2001 Determination of urea—Determination of water insoluble matter content—Weight method GB/T 2441.7-2001 Determination of urea—Determination of particle size—Sieve method GB/T 2441.8-2001 Determination of urea—Determination of sulphate content —Visible turbidimetric method GB/T 2441.9-2001 Determination of Urea—Determination of methylenediurea content—Spectrophotometric method

Replace the following standards

GB/T 2445-1991

Superseded by the following standards

GB/T 2441.4-2010 Determination of urea—Part 4:Iron content—1,10-Phenanthroline spectrophotometric method

Referenced Standards

HG/T 2843-1997 Fertilizer products commonly used in chemical analysis include standard titration solutions, standard solutions, reagent solutions, and indicator solutions

Adopt standards

ISO 6685:1982

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
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