GB/T 17616-1998
Replaced
GB/T 223.8-2025
Active
National standards
GB/T 223.8-2025 Iron,steel and alloy—Determination of aluminium content—Titrimetric method and spectrophotometric method
GB/T 223.8-2025 Iron,steel and alloy—Determination of aluminium content—Titrimetric method and spectrophotometric method
Price:
$ 75
Basic Information
Standard Code:
GB/T 223.8-2025
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Analysis methods for steel and iron alloys
ICS Name:
Black metal comprehensive
Publish Date:
2025-08-29
Implement Date:
2026-03-01
Pages:
24 pages
Scope
This document describes the methods for determining the aluminum content in steel and alloys using the sodium fluoride separation-EDTA titration method, the chromotropic S direct photometry method, and the copper iron reagent separation-chromotropic S spectrophotometry method.
Method one in this document is the sodium fluoride separation-EDTA titration method, which is suitable for determining the aluminum content in steel and alloys with a mass fraction of 0.50% to 10.00%.
Method two is the chromotropic S direct photometry method, which is suitable for determining the acid-soluble aluminum content in steel and alloys with a mass fraction of 0.050% to 1.00%.
Method three is the copper iron reagent separation-chromotropic S spectrophotometry method, which is suitable for determining the aluminum content in steel and alloys with a mass fraction of 0.015% to 0.50%.
Development Information
Same series standard
GB/T 223.6-2025 Iron,steel and alloy—Determination of boron content—Neutralization titrimetric method and spectrophotometric method
GB/T 223.11-2025 Iron, steel and alloy—Determination of chromium content—Titrimetric method and spectrophotometric method
GB/T 223.13-2025 Iron,steel and alloy—Determination of vanadium content—Titrimetric method and spectrophotometric method
Replace the following standards
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
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 12805-1991 Laboratory glassware—Burettes
GB/T 12805-2011 Laboratory glassware—Burettes
GB/T 12806-1991 Laboratory glassware—One-mark volumetric flasks
GB/T 12806-2011 Laboratory glassware—One-mark volumetric flasks
GB/T 12808-1991 Laboratory glassware—One-mark pipettes
GB/T 12808-2015 Laboratory glassware—One mark pipettes
GB/T 20066-2006 Steel and iron—Sampling and preparation of samples for the determination of chemical composition
Related Standards
GB/T 5686.4-1998
Replaced
GB/T 5686.4-1998 Methods for chemical analysis of silicomanganese—The phosphomolybdenum blue phtometric method for the determination of phosphorus content
GB/T 18255-2000
Replaced
GB/T 18255-2000 Coking viscous oil products—Determination of distillation range
GB/T 4223-2004
Replaced
GB/T 4223-2004 Iron and steel scraps
GB/T 20066-2006
Active
GB/T 20066-2006 Steel and iron—Sampling and preparation of samples for the determination of chemical composition
GB/T 11261-2006
Active