http://www.labtool.net/en/products_detail.php?cid=334&id=428 adopts the principle of energy dispersion, mechanical and electrical integrated microcomputer design, rapid and accurate analysis. The repeatability and reproducibility are in line with the national standards GB/T 17040-2008 "Determination of Sulfur Content in Petroleum Products (Energy Dispersive X-ray Fluorescence Spectrometry)" and GB/T 11140-1989 "Determination of sulfur content in petroleum products (X-ray spectrometric method)" the relevant requirements, and fully meet the requirements of the American national standard ASTMD4294-02. Welcome to contact me My Wechat/whatsapp is +8615665870097