GB/T 5686.2-2022
Ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal—Determination of silicon content—Molybdenum blue spectrophotometric method, silicon potassium fluoride titri (English Version)

Standard No.

GB/T 5686.2-2022

Language

Chinese, Available in English version

Release Date

2022

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 5686.2-2022

Replace

GB/T 5686.2-2008

Scope

This document specifies the determination of silicon content in ferromanganese, manganese-silicon alloy, micro-low carbon manganese-silicon alloy, ferromanganese nitride and metallic manganese by molybdenum blue spectrophotometry, potassium fluorosilicate titration and perchloric acid gravimetric method. This document is applicable to the determination of silicon content in ferromanganese, manganese-silicon alloy, micro-low carbon manganese-silicon alloy, ferromanganese nitride and metallic manganese. Measuring range (mass fraction): 0.10%~40.00%. Method 1: molybdenum blue spectrophotometry, suitable for the determination of silicon content in metal manganese, the measurement range (mass fraction) is 0.10%~2.00%; method 2: potassium fluorosilicate titration method, suitable for manganese-silicon alloy, micro-low carbon Determination of silicon content in manganese-silicon alloy, measurement range (mass fraction) 12.00%~40.00%; method three: perchloric acid gravimetric method, suitable for ferromanganese, manganese-silicon alloy, micro-low carbon manganese-silicon alloy, ferromanganese nitride 1. Determination of silicon content in metal manganese, the determination range (mass fraction) is 0.50%~40.00%.

GB/T 5686.2-2022 Referenced Document

• GB/T 12805 Laboratory glassware.Burettes
• GB/T 12806 Laboratory glassware.One-mark volumetric flasks
• GB/T 12807 Laboratory glassware一Graduated pipettes
• GB/T 12808 Laboratory glass instrument single marked line pipette
• GB/T 4010 Ferroallys sampling and preparation of samples for chemical analysis
• GB/T 6682 Water for analytical laboratory use.Specification and test methods

GB/T 5686.2-2022 history

• 2022 GB/T 5686.2-2022 Ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal—Determination of silicon content—Molybdenum blue spectrophotometric method, silicon potassium fluoride titri
• 2008 GB/T 5686.2-2008 Ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal. Determination of silicon content. Molybdenum blue photometric method, silicon potassium fluoride titrimetric method and perchloric acid dehydration gravimetric me
• 1985 GB/T 5686.2-1985 Methods for chemical analysis of silicomanganese alloy--The gravimetric method for the determination of silicon content

GB/T 5686.2-2022 -All Parts