Standard No.:	GB/T 34176-2017
English Name:	Chemical analysis methods for determination of Fe2+ and Fe3+ in refractoryproducts by the spectral photometric method with 1, 10-phenanthroline
Chinese Name:	邻二氮杂菲分光光度法测定耐火材料中的二价和三价铁离子化学分析方法
Chinese Classification:	Q40    Fireproof material in general
Professional Classification:	GB    National Standard
Issued by:	AQSIQ;SAC
Issued on:	2017-09-07
Implemented on:	2018-8-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	7500 words
Price(USD):	220.00
Delivery:	via email in 1~3 business day

本标准规定了邻二氮杂菲分光光度法测定耐火材料中的Fe2+和Fe3+， Fe2+和Fe3+的测定范围（质量分数）：两者之和小于8%。
本标准适用于如长石、高岭石、粘土、石灰石和石英等材料，其它相关材料也可以参照本标准进行测定。本标准不适用于还原性材料，如碳化硅，镁碳砖等。