Testing equipment should be kept clean with no water marks, fingerprints, scratches or stains. Preferably test equipment should be rinsed with distilled water after and prior to use.
Plasticware can deteriorate over relatively short periods of time and should be replaced regularly. Caps and crush rods should be replaced if they become stained.
Test methods must be followed carefully as deviations in the test temperature, the order of steps or in the standing time can cause results to be unreliable.
Reagent tablets must be fully dissolved before a result is read.
Test reagents must be used within the best before date.
Reagents are formulated specifically for Palintest instruments and test equipment, products from different manufacturers cannot be used interchangeably.
If deposits or bubbles form, leave for a few minutes to clear unless the test is time-specific. Bubbles can usually be cleared using a crushing rod or by gently tapping the side of the sample tube.
The dilution method can be used to bring results that are above the range of the test into range for reliable results.
