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Chinese Standard: GB/T 4699.8-2025

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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


Standard in brief
Scope of Application:  
本文件规定了采用硅钼蓝分光光度法、氟硅酸钾滴定法和高氯酸脱水重量法测定铬铁、硅铬合金、氮化铬铁和高氮铬铁中的硅含量。
本文件适用于铬铁、硅铬合金、氮化铬铁和高氮铬铁中硅含量的测定。方法一:硅钼蓝分光光度法,适用于铬铁、氮化铬铁和高氮铬铁中硅含量的测定,测定范围(质量分数):0.10%~6.00%;方法二:氟硅酸钾滴定法,适用于硅铬合金中硅含量的测定,测定范围(质量分数):30.00%~50.00%;方法三:高氯酸脱水重量法,适用于铬铁、硅铬合金、氮化铬铁和高氮铬铁中硅含量的测定,测定范围(质量分数):0.10%~60.00%。

Basic information
Standard No:GB/T 4699.8-2025
Standard Name:铬铁、硅铬合金、氮化铬铁和高氮铬铁硅含量的测定 硅钼蓝分光光度法、氟硅酸钾滴定法和高氯酸脱水重量法
English Name: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
Standard Status:现行
Release Date:1985-01-01
Effective Date:2026-03-01
Language of Publication:中文简体

Standard Classification
ICS Number:77.100
CCS Number:H11

Related Standards
Referenced Standards:GB/T 4010,GB/T 6682,GB/T 8170,GB/T 12806,GB/T 12807,GB/T 12808

Publication Information
Number of pages:16
Number of words:26 K
Format:大16
Edition:1
Color Pages:0
Electronic Version:Yes
Color Images:No
Print Publication Date:2025-08-01

Standard Revision Information
Has Amendment:No

Other Information
Application Dept:国家市场监督管理总局、国家标准化管理委员会
Standard Type:CN
Standard Attribute:GB
Other Standard Number:4699.8
Drafter:郑海东、聂淑兰、张云鹏、王书亮、徐文高、方艳、马宁、唐华应、吴蕾、周瑞东、王超、赵利欣、蒲海燕、刘惠丽、曹发卫、张莉、李昆鹏、刘飞、李京霖、孙风晓、韩雪松、王昊、王晶、卢春生、程昭阳
Drafting Organization:吉铁铁合金有限责任公司、四川川投峨眉铁合金(集团)有限责任公司、青岛远诚创智科技有限公司、中信(辽宁)新材料科技股份有限公司、方同舟控股有限公司、内蒙古新太元新材料有限公司、鄂尔多斯市西金矿冶有限责任公司、河北津西钢铁集团股份有限公司、冶金工业信息标准研究院
Management Organization:全国生铁及铁合金标准化技术委员会(SAC/TC 318)
Proposing Department:中国钢铁工业协会

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