But there is evidence to suggest laboratory personnel may not be following the practices outlined in these regulations. Regulators have turned up clearly unacceptable practices when they compared results on paper or manually recorded to the complete results digitally logged by the measurement instruments. The electronic records have revealed cases of testing a sample multiple times to obtain the “right answer,” or adjusting the meta data (sample weight, dilution factor, volume) in a calculation to ensure that a specification is met.
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