Standard No.:	GB/T 19421-2008
Chinese Name:	层状结晶二硅酸钠试验方法
English Name:	Test methods of crystalline layered sodium disilicate
Professional Classification:	G72 Basic standards and general methods for surface active agent
Professional Classification:	GB National Standard
ICS Classification:	71.100.40 Surface active agents
Issued by:
Issued on:	2008-05-28
Implemented on:	2008-12-01
Status:	VALID
Replace:	GB/T19421.1-2003 Test methods of crystalline layered sodium disilicate—Qualitative analysis of delta-crystalline layered sodium disilicate—Method of X-ray diffractometer
Language:	English
File Format:	PDF
Word Count:	10500 words
Price(USD):	315 (USD)
Delivery:	via email in 1-3 business day

前言……………………………………………………………………………………………………………………Ⅰ
１　范围………………………………………………………………………………………………………………１
２　规范性引用文件…………………………………………………………………………………………………１
３　术语和定义………………………………………………………………………………………………………１
４　δ相层状结晶二硅酸钠定性分析　Ｘ射线衍射仪法…………………………………………………………２
５　白度的测定………………………………………………………………………………………………………３
６　ｐＨ值的测定……………………………………………………………………………………………………４
７　ＥＤＴＡ容量法测定钙交换能力………………………………………………………………………………５
８　ＥＤＴＡ容量法测定镁交换能力………………………………………………………………………………６
９　重量法测定灼烧失量……………………………………………………………………………………………８
１０　重量法测定湿存水量…………………………………………………………………………………………９
１１　邻菲?啉比色法测定三氧化二铁含量………………………………………………………………………９
１２　容量法测定氧化钠含量 ……………………………………………………………………………………１０
１３　氟硅酸钾容量法测定二氧化硅含量 ………………………………………………………………………１１
１４　原子吸收分光光度法测定氧化钙含量 ……………………………………………………………………１２
１５　原子吸收分光光度法测定氧化镁含量 ……………………………………………………………………１４
１６　试验结果报告要求 …………………………………………………………………………………………１５
附录Ａ（资料性附录）δ相层状结晶二硅酸钠Ｘ 射线衍射谱图………………………………………………１６
附录Ｂ（规范性附录）最低稳定性变异系数的计算 ……………………………………………………………１７
附录Ｃ（资料性附录）ＧＧＸ-６型原子吸收分光光度计的工作参数…………………………………………１８