... department; or research and education work in petroleum, chemical engineering, science academy. Standards: JB/T9388; ISO1409; ASTM D 1417 etc. ... function; Automatic one key adjust Zero point function 4, LCD Digital display the load;5, Measuring table auto moving.Specification: ... , Glass cup, 500mg standard weight, manual etc. interface tensiometer/digital surface tensiometer/Du nouy ring method test