LaMotte COD Plus Colorimeter 1922-EX2 - Manual (Page 124)

TURBIDITY
ABSORPTION METHOD • NO REAGENTS REQUIRED
Turbidity is a measure of water clarity and is independent of color. Turbidity is
caused by undissolved and suspended solids. Mud, silt, algae, and
microorganisms can all cause turbidity. Turbidity is a gross measurement of
water quality.
APPLICATION:
Surface and industrial water for non-compliance monitoring.
(For compliance monitoring at low turbidity levels, use a
commercial nephelometer.)
RANGE: 0 – 400 FTUs
METHOD: Absorptimetric
SAMPLE
HANDLING &
PRESERVATION: Measure sample as soon as possible after collection.
INTERFERENCES: Check for stray light interference (p. 17).
COD PLUS TEST PROCEDURES 6/02 TURBIDITY 1/2