YS/T 273.9-2006
Chemical analysis methods and physical properties of cryolite. Part 1:Determination of phosphorous pentoxide by molybdenum blue photometric method (English Version)

Standard No.

YS/T 273.9-2006

Language

Chinese, Available in English version

Release Date

2006

Published By

Professional Standard - Non-ferrous Metal

Status

Be replaced 2021-04

Replace By

YS/T 273.9-2020

Latest

YS/T 273.9-2020

Replace

YS/T 273.9-1994

Scope

This section specifies the method for determination of phosphorus pentoxide content in cryolite. This section applies to the determination of phosphorus pentoxide content in cryolite. Measuring range (mass fraction): ≤0.500%.

YS/T 273.9-2006 history

• 2020 YS/T 273.9-2020 Methods for chemical analysis and physical properties of cryolite Part 9: Determination of phosphorus pentoxide content Molybdenum blue spectrophotometry
• 2006 YS/T 273.9-2006 Chemical analysis methods and physical properties of cryolite. Part 1:Determination of phosphorous pentoxide by molybdenum blue photometric method
• 0000 YS/T 273.9-1994