17
HOW TO ENSURE ACCURATE CALIBRATION
The instructions listed below should be carefully followed during
testing and during calibration:
••
••
• All glassware that comes into contact with standards should be
maintained clean. Wash with HI 93703-50
cleaning solution
and rinse with HI 93703-0
or turbidity free water.
••
••
• Rinse the vial twice with 5 ml of the liquid to be tested. This
removes the effect of any previous liquid and any dust or foreign
matter that may be present inside. Gently pour the liquid down
the side of the vial to reduce air bubbles (no mixing is required
when HI 93703-0
and HI 93703-10
AMCO-AEPA-1 standards
are used).
••
••
• Before inserting the vial into
the instrument, wipe it with
HI 93703-70
soft, lint-free
tissue. Handle vials so that no
fingerprints can get on the
areas where light passes
(approx. 2cm/1'' from the
bottom of the vial).