Test Procedures - palintest Green Drop Kit Instructions Manual

3. TEST PROCEDURES

Blanks and Samples
Palintest photometers use a BLANK tube to set the
instrument to blank and a SAMPLE tube to take the
reading.
A BLANK tube is a test tube filled with untreated
water sample. A SAMPLE tube is a test tube
containing the sample to which reagents have been
added in accordance with the test procedure
described.
The blank setting is held in memory. It is not
necessary to reset the blank each time a reading is
taken if the water samples are similar and the
conditions of use are the same. The blank setting
can be confirmed if necessary by taking a test
reading on the blank tube.
For detailed instructions on individual test
methods, consult the Palintest photometer
methods instructions