GB/T21789 ISO13736 SH21789 Automatic Abel Closed Cup Flash Point Tester for Oil Products SH21789 Automatic Abel closed flash point tester is designed and manufactured according to the requirements of the national standard GB/21789 "Determination of flash point of petroleum products and other liquids (Abel closed cup method)" and ISO13736. SH21789A Automatic Abel Closed Cup Flash Point Tester Automatic Closed up Flash Point Testing Machine Oil Flash Point Tester Digital Abel
