Manual

Test Procedure

Read the Oxygen test instructions leaflet contained in the CHEMetrics Vacu-Vials

pack. Observe these various recommendations regarding sample handling and

use of Vacu-Vials :-

1 Carry out the test in accordance with the test procedure given in the

CHEMetrics instruction leaflet. Observe the time periods given in the test

instructions.

2 Select Phot 49 on the photometer. The wavelength is set automatically.

3 Use the colorless blank ampoule provided in the Starter Pack as the blank for

setting the instrument.

4 The photometer provides direct readings in mg/l O

Note

Note for measuring dissolved oxygen in natural waters, use the DO 15/20 test

(see instructions Phot.75).

Vacu-Vials is a registered trade mark of CHEMetrics Inc

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