| Popis: |
PIERE are no good practical methods for the routine testing of machine dishwash.ing. The sanitarian has examined the machines visually for improper operation and cleanliness and has checked water temperatures and bacterial contents of washed and rinsed dishes, but he has had no yardsticks for measuring fully the proper operation of the machine. The writers,1 2 have developed apparatus and techniques for measuring washing effectiveness, and time and temperature of rinse for good sanitization. The apparatus and techniques reported were primarily for research purposes, however some of the procedures appeared adaptable to routine field use. Also some of the findings suggested tests which might prove useful in checking dishwashing machines. As a result of the work reported, a tentative plan and standards for field use were formulated as follows |
