GB/T 3654.10-1983
Replaced
GB/T 4699.8-2025
Active
National standards
GB/T 4699.8-2025 Ferrochromium,silicochromium,nitrogen-bearing ferrochromium and high nitrogen ferrochromium—Determination of silicon content—Silicomolybdenum blue spectrophotometric method,silicon potassium fluoride titrimetric method and perchloric acid dehydration gravimetric method
GB/T 4699.8-2025 Ferrochromium,silicochromium,nitrogen-bearing ferrochromium and high nitrogen ferrochromium—Determination of silicon content—Silicomolybdenum blue spectrophotometric method,silicon potassium fluoride titrimetric method and perchloric acid dehydration gravimetric method
Price:
$ 54
Basic Information
Standard Code:
GB/T 4699.8-2025
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:
2025-08-29
Implement Date:
2026-03-01
Pages:
16 pages
Scope
This document specifies the determination of silicon content in ferrochromium, silicon-chromium alloys, chromium nitride, and high-nitrogen chromium using the silicomolybdenum blue spectrophotometry, potassium fluorosilicate titration, and perchloric acid dehydration weight methods.
This document is applicable to the determination of silicon content in ferrochromium, silicon-chromium alloys, chromium nitride, and high-nitrogen chromium.
Method 1: Silicomolybdenum blue spectrophotometry, suitable for the determination of silicon content in ferrochromium, chromium nitride, and high-nitrogen chromium, with a measurement range (mass fraction): 0.10%~6.00%;
Method 2: Potassium fluorosilicate titration, suitable for the determination of silicon content in silicon-chromium alloys, with a measurement range (mass fraction): 30.00%~50.00%;
Method 3: Perchloric acid dehydration weight method, suitable for the determination of silicon content in ferrochromium, silicon-chromium alloys, chromium nitride, and high-nitrogen chromium, with a measurement range (mass fraction): 0.10%~60.00%.
Development Information
Same series standard
Replace the following standards
Referenced Standards
GB/T 4010-1994 Ferroalloys—Sampling and preparation of samples for chemical analysis
GB/T 4010-2015 Ferroallys sampling and preparation of samples for chemical analysis
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 12806-1991 Laboratory glassware—One-mark volumetric flasks
GB/T 12806-2011 Laboratory glassware—One-mark volumetric flasks
GB/T 12807-1991 Laboratory glassware—Graduated pipettes
GB/T 12807-2021 Laboratory glassware—Graduated pipettes
GB/T 12808-1991 Laboratory glassware—One-mark pipettes
GB/T 12808-2015 Laboratory glassware—One mark pipettes
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