GB/T 13840-1992
Abolished
GB/T 4324.2-2023
Active
National standards
GB/T 4324.2-2023 Methods for chemical analysis of tungsten—Part 2:Determination of bismuth and arsenic contents
GB/T 4324.2-2023 Methods for chemical analysis of tungsten—Part 2:Determination of bismuth and arsenic contents
Price:
$ 54
Basic Information
Standard Code:
GB/T 4324.2-2023
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Analysis methods for rare metals and their alloys
ICS Name:
Other non-ferrous metals and their alloys
Publish Date:
2023-11-27
Implement Date:
2024-06-01
Pages:
12 pages
Scope
This document describes the method for determining the bismuth and arsenic content in tungsten and tungsten alloys. This document is applicable to the determination of bismuth and arsenic content in tungsten powder, tungstic acid, tungsten bars, tungsten trioxide, blue tungsten, purple tungsten, tungsten carbide, ammonium metatungstate, and ammonium paratungstate. The determination range (mass fraction) is 0.0001% to 0.020%.
Development Information
Replace the following standards
Referenced Standards
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 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
GB/T 17433-1998 Foundation terms for chemical analysis of metallurgical products
GB/T 17433-2014 Foundation terms for chemical analysis of metallurgical products
Related Standards
GB/T 15677-1995
Replaced
GB/T 15677-1995 Lanthanum metal
GB/T 3136-1995
abolished_transferred
GB/T 3136-1995 Tantalum powders
GB/T 3463-1995
Abolished
GB/T 3463-1995 Tantalum wires
GB/T 3628-1995
Replaced
GB/T 3628-1995 Tantalum and tantalum alloy foils
GB/T 16476-1996
Replaced