http://www.labtool.net/en/products_detail.php?cid=289&id=421 It is designed and manufactured in accordance with the requirements of the standard of the People's Republic of China GB/T3535 "Petroleum Pour Point Determination Method" and the standard of the People's Republic of China GB/T510 "Petroleum Condensation Point Determination Method" and "Petroleum Turbidity Point Determination Method" (GB 6986-1986). It is suitable for the determination of pour point, condensation point, turbidity point and cold filtration point of petroleum products by the methods specified in the above standards (with optional accessories). Welcome to contact me My Wechat/whatsapp is +8615665870097