Exam (elaborations)
NRFSP EXAM STUDY GUIDE 2024 WITH COMPLETE SOLUTIONS.
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sanitizer concentration for chlorine sanitizers - ANSWER-50-99 ppm example of cross-connection - ANSWER-a running faucet below the rim of the sink. In this example, the water level in the sink could rise above the faucet and cause back-flow of unsafe water into the clean water supply. Imminen...
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