GB/T 35069-2018 (English Version) PDF

Standard No.: GB/T 35069-2018
Language: Chinese, Available in English version
Release Date: 2018
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 35069-2018

Scope: This standard specifies the use of reduced phosphomolybdate spectrophotometric method for the determination of phosphorus content. This standard applies to the determination of phosphorus content in coke (metallurgical coke, foundry coke, coke for ferroalloy, gasification coke, semi-coke, semi-coke, etc.), and coking coal can be used as a reference. Measuring range (mass fraction): 0.005 0%~0.10%.

GB/T 35069-2018 Referenced Document

GB/T 1997 Coke-Sampling and preparation of samples
GB/T 2001 Coke.Determination of proximate analysis
GB/T 6379.2 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 Water for analytical laboratory use.Specification and test methods
GB/T 7729 Chemical analysis of metallurgical products—General rule for spectrophotometric methods*， 2021-08-20 Update
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values

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