GB/T 35069-2018 Active National standards

GB/T 35069-2018 Coke—Determination of phosphorus content—Reduced molybdophosphate spectrophotometric method

GB/T 35069-2018 Coke—Determination of phosphorus content—Reduced molybdophosphate spectrophotometric method

Publish Date: 2018-05-14 Implement Date: 2018-12-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 35069-2018

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Coke

ICS Name: Solid fuel

Publish Date: 2018-05-14

Implement Date: 2018-12-01

Pages: 8 pages

Scope

This standard specifies the determination of phosphorus content by the reduction phosphomolybdate spectrophotometry method.
This standard is applicable to the determination of phosphorus content in coke (metallurgical coke, casting coke, coke for ferroalloys, gasification coke, semi-coke, lanthanum coke, etc.), and the determination of phosphorus content in coking coal can be used for reference. The determination range (mass fraction): 0.005% to 0.10%.

Development Information

Word Count: 14 Thousand words Pages: 8 pages

Referenced Standards

GB/T 1997-1989 Coke—Sampling and preparation of samples GB/T 1997-2008 Coke—Sampling and preparation of samples GB/T 2001-1991 Coke—Determination of proximate analysis GB/T 2001-2013 Coke—Determination of proximate analysis GB/T 6379.2-2004 Accuracy(trueness and precision)of measurement methods and results—Part 2:Basic method for the determination of repeatability and reproducibility of a standard measurement method 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 GB/T 7729-2021 Chemical analysis of metallurgical products—General rule for spectrophotometric methods 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

Related Standards

GB/T 1998-1980 abolished_transferred

GB/T 1998-1980 Sampling and preparation of samples of petroleum cokes

Publish Date: 1980-08-15

GB/T 4511.1-1984 Replaced

GB/T 4511.1-1984 Coke—Determination of show porosity

Publish Date: 1984-06-28

GB/T 4511.3-1984 Replaced

GB/T 4511.3-1984 Coke—Determination of apparent relative density and total porosity

Publish Date: 1984-06-28

GB/T 4511.4-1984 Replaced

GB/T 4511.4-1984 Coke—Determination of true relative density

Publish Date: 1984-06-28

GB/T 8729-1988 Replaced

GB/T 8729-1988 Foundry coke

Publish Date: 1988-02-22

GB/T 9977-1988 Replaced

GB/T 9977-1988 The terms of coking products

Publish Date: 1988-10-26