国产精品不卡在线观看,国产欧美自拍一区,欧美日韩一二三四 http://m.mimgu.com The Leading Supplier of China Amine Catalysts Mon, 17 Apr 2023 07:16:48 +0000 zh-CN hourly 1 https://wordpress.org/?v=6.1.7 http://m.mimgu.com/wp-content/uploads/2023/12/1.jpg Organotin detection standard – Amine Catalysts http://m.mimgu.com 32 32 Organotin detection standard http://m.mimgu.com/archives/42928 Mon, 17 Apr 2023 07:16:48 +0000 http://m.mimgu.com/archives/42928 The detection standards of organotin compounds vary according to different regions and uses. For example, the EU REACH regulation has made specific and detailed regulations on the use of organotin compounds, mainly restricting dibutyltin, dioctyltin and trisubstituted organotin compounds, the limit value is 0.1%, and the recommended test method is GC-MS method or ICP- OES method 1.

In China, the standards for organotin content detection include MSZ 8653/12-1984 Nickel chemical detection. Tin content detection and MSZ 8652/3-1970 tin chemical detection. Iron content detection.

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