Sulphuric acid and oleums for industrial use — Determination of sulphur dioxide content — Iodometric method
工业用硫酸和发烟硫酸——二氧化硫含量的测定——碘量法
1975-11-01
UNE 55590-1981
SURFACE ACTIVE AGENTS. SULPHURIC ACID AND OLEUMS FOR USE AS RAW-MATERIALS IN DETERGENT FORMULATIONS. DETERMINATION OF SULPHUR DIOXIDE CONTENT. IODOMETRIC METHOD
表面活性剂 洗涤剂配方中用作原料的硫酸和发烟硫酸 二氧化硫含量的测定 碘量法
1981-11-15
CAN/CSA Z223.2-M86(R1999)
Method for the Continuous Measurement of Oxygen, Carbon Dioxide, Carbon Monoxide, Sulphur Dioxide and Oxides of Nitrogen in Enclosed Combustion Flue Gas Streams
封闭燃烧烟气流中氧气、二氧化碳、一氧化碳、二氧化硫和氮氧化物的连续测量方法
2000-02-19
BS 5688-5-1979
Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use-Determination of sulphur compounds in boric acid, boric oxide, $7Idi$7Rsodium tetraborates and crude sodium borates
工业用原硼酸、三氧化二硼、四硼酸二钠、过硼酸钠和粗硼酸钠的试验方法