Standard No.:	GB/T 4699.3-2007
English Name:	Ferrochromium silicochromium and nitrogen-bearing ferrochromium—Determination of phosphorus content—Molybdobismuthylphosphoric blue spectrophotometric method and the molybdenum blue s
Chinese Name:	铬铁、硅铬合金和氮化铬铁 磷含量的测定 铋磷钼蓝分光光度法和钼蓝分光光度法
Chinese Classification:	H11    Steel and iron alloy analysis method
Professional Classification:	GB    National Standard
Issued by:	AQSIQ; SAC
Issued on:	2007-10-25
Implemented on:	2008-4-1
Status:	valid
Superseding:	GB/T 5687.3-1985 Methods for chemical analysis of ferro-chromium; The molybdenum blue photometric method for the determination of phosphorus content GB/T 4699.3-1984 Methods for chemical analysis of silicochromium--The molybdenum blue photometric method for the determination of phosphorus content
Language:	English
File Format:	PDF
Word Count:	6000 words
Price(USD):	180.00
Delivery:	via email in 1~3 business day

GB/T 4699的本部分规定了用铋磷钼蓝分光光度法和钼蓝分光光度法测定磷含量。
本部分适用于铬铁、真空微碳铬铁、氮化铬铁和硅铬合金中磷含量的测定，铋磷钼蓝分光光度法测定范围（质量分数）：0.008%~0.080%；钼蓝光度法测定范围（质量分数）：＜0.15%。