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Operator certification: 1980 status report
Publication year - 1981
Publication title -
journal ‐ american water works association
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1981.tb04826.x
Subject(s) - certification , operator (biology) , mathematics , business , political science , chemistry , law , biochemistry , repressor , transcription factor , gene
Certification boards were surveyed concerning operator certification. Results showed that the number of certified operators increased approximately 2.5 times in the period from 1970 to 1980.