SH21789 Automatic Abel Closed‑Cup Flash Point Tester for Petroleum Liquids GB/T21789 ISO13736 ISO 13736 Compliant Automatic Abel Closed‑Cup Flash‑Point Tester for Petroleum‑Based Liquids,‑30℃ to 70℃ Testing Scope The SH21789 automatic Abel closed‑cup flash point analyzer is engineered in compliance with GB/T21789 “Flash‑point test for petroleum and other liquids (Abel closed‑cup procedure)” alongside ISO 13736 specifications. SH21789A Fully‑Automated Abel Closed‑Cup Flash