435 / | HD | CHEMISTRY: MOLECULAR BIOLOGY AND MICROBIOLOGY |
4 | DF | MEASURING OR TESTING PROCESS INVOLVING ENZYMES OR MICRO-ORGANISMS; COMPOSITION OR TEST STRIP THEREFORE; PROCESSES OF FORMING SUCH COMPOSITION OR TEST STRIP {15} |
18 | DF | .~ Involving hydrolase {4} |
19 | DF | .~.~ Involving esterase {2} |
21 | .~.~.~ Involving phosphatase |