GB/T 3654.10-1983
Replaced
GB/T 21931.3-2008
Active
National standards
GB/T 21931.3-2008 Nickel,ferronickel and nickel alloys—Determination of phosphorus content—Phosphovanoclonolybeate molecular absorption spectrometric method
GB/T 21931.3-2008 Nickel,ferronickel and nickel alloys—Determination of phosphorus content—Phosphovanoclonolybeate molecular absorption spectrometric method
Basic Information
Standard Code:
GB/T 21931.3-2008
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Analysis methods for steel and iron alloys
ICS Name:
Iron alloy
Publish Date:
2008-05-30
Implement Date:
2008-12-01
Pages:
7 pages
Scope
This part of GB/T 21931 specifies the determination of phosphorus content in nickel, nickel-iron, and nickel alloys by the phosphorus vanadium molybdenum yellow spectrophotometric method. This part is applicable to the determination of phosphorus content in nickel, nickel-iron, and nickel alloys. The determination range (mass fraction): 0.000 5% to 0.05%. The interference of elements such as arsenic, chromium, hafnium, niobium, silicon, tantalum, titanium, and tungsten can be eliminated by the complexation effect and volatility (e.g., chromium). When the content of interfering elements is low, the measured phosphorus content can reach a minimum of 0.000 5% (mass fraction).
Development Information
Same series standard
Referenced Standards
GB/T 6379.1-2004 Accuracy(trueness and precision)of measurement methods and results—Part 1:General principles and definitions
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
Adopt standards
ISO 11400:1992
Related Standards
GB/T 3654.1-1983
Active
GB/T 3654.1-1983 Methods for chemical analysis of ferroniobium—The paper chromatograph-gravimetric method for the determination of niobium and tantalum
GB/T 3654.2-1983
Replaced
GB/T 3654.2-1983 Methods for chemical analysis of ferroniobium—The neocuproine-chloroform extraction photometric method for the determination of copper content
GB/T 3654.3-1983
Replaced
GB/T 3654.3-1983 Methods for chemical analysis of ferroniobium The gravimetric method for the determination of silicon content
GB/T 3654.4-1983
Active
GB/T 3654.4-1983 Methods for chemical analysis of ferroniobium The combustion gravimetric method for the determination of carbon content
GB/T 3654.5-1983
Active