Both sulphuric acid and sulphur dioxide businesses are registered and meet the ISO 9001 2008 quality system standard, and have been given kosher approval.
这两种硫酸和二氧化硫的企业已经进行了注册，并符合ISO 9001 2008质量体系标准，已获得犹太批准。
Water. carbon dioxide. sulphuric acid. calcium hydroxide. alpha. beta.
水。二氧化碳。硫酸。氢氧化钙。阿尔法。贝塔。
It's used to measure micro sulphur dioxide of gases at the inlet and outlet of the second stage conversion in sulphuric acid production with satisfactory results.
用于硫酸生产二次转化进出口气体中微量二氧化硫含量的测定，效果较好。
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