Standard No.:	GB/T 5195.4-2025
English Name:	Methods for chemical analysis of fluorspar—Part 4: Determination of total sulfur and sulfide content
Chinese Name:	萤石化学分析方法 第4部分：总硫、硫化物含量的测定
Chinese Classification:	D52    Metallurgical auxiliary material ore
Professional Classification:	GB    National Standard
Source Content Issued by:	SAMR; SAC
Issued on:	2025-8-29
Implemented on:	2026-3-1
Status:	to be valid
Superseding:	GB/T 5195.4-2006 Fluorspar―Determination of sulfide content―Iodometric method GB/T 5195.5-2017 Fluorspar--Determination of total sulfur content--Pipe furnace combustion iodic acid potassium titration method
Target Language:	English
File Format:	PDF
Word Count:	9000 words
Translation Price(USD):	270.0
Delivery:	via email in 1~3 business day

本文件描述了采用管式炉燃烧-碘酸钾滴定法测定总硫含量，采用碘量法测定硫化物含量。
本文件适用于萤石中总硫、硫化物含量的测定。方法一测定总硫范围(质量分数):0.010%~ 1.000%;方法二测定范围(质量分数):w≥0.001% (硫化物按硫计算),当试料中存在多硫化物时，本方 法不适用。