工业用五水偏硅酸钠的碱硅、铁含量和不溶于水物质的要求，以及工业用材料氯化物和硫酸盐含量的附加特殊要求。基于硅:碱比和相对密度的水玻璃溶液分类方法，以及对粘度的可选附加要求。试验方法不包括在内，但参考BS 6092。交叉引用:BS 188BS 6092:第0BS 6092部分: 第1BS 6092部分:第2BS 6092部分:第5BS 6092部分:第7BS 6092部分:第9BS 6092部分:第10BS 6092部分:第11BS 6092部分:第12部分

Requirements for alkali silica and iron contents and matter insoluble in water of sodium metasilicate pentahydrate for industrial use and additional special requirements for chloride and sulphate contents of material for services use. Methods of classification for sodium silicate solutions based on silica: alkali ratio and relative density, with optional additional requirements for viscosity. Test methods not included but reference is made to BS 6092.Cross References:BS 188BS 6092:Part 0BS 6092:Part 1BS 6092:Part 2BS 6092:Part 5BS 6092:Part 7BS 6092:Part 9BS 6092:Part 10BS 6092:Part 11BS 6092:Part 12