SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
Instruction Manual
www.hannainst.com
DearCustomer,
Thank you for choosing a Hanna Product. Please read the
instructions carefully before using the chemical test kit. It
will provide you with the necessary information for correct
use of the kit.
Remove the chemical test kit from the packing material and
examine it carefully to make sure that no damage has
occurred during shipping. If there is any noticeable dam-
age, notify your Dealer or the nearest Hanna office
immediately.
Each kit is supplied with:
• HI 3846-0 Reagent, packets (100 pcs);
• 1 color comparator cube.
Note: Any damaged or defective item must be returned in
its original packing materials.
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
HI 3846
Chromium
Test Kit
ISTR3846 05/99 PRINTED IN ITALY
Range 0 to 1.0 ppm as Cr(VI)
Smallest Increment 0.2 ppm
AnalysisMethod Colorimetric,diphenylcarbohydrazide
Sample Size 5 mL
Number of Tests 100 (average)
CaseDimensions 230x59x70 mm (9.0x2.3x2.8")
Shipping Weight 160 g (5.6 oz.)
SIGNIFICANCE AND USESIGNIFICANCE AND USE
SIGNIFICANCE AND USESIGNIFICANCE AND USE
SIGNIFICANCE AND USE
CHEMICAL REACTIONCHEMICAL REACTION
CHEMICAL REACTIONCHEMICAL REACTION
CHEMICAL REACTION
Chromium(VI) reacts with diphenylcarbohydrazide to form a
purple product in an acidic buffered condition. The amount
of color developed is proportional to the concentration of
chromium present in the aqueous sample.
Chromium salts are widely used in industrial processes, such
as metal finishing and plating industries as well as in the
leather industry as a tanning agent, and in the manufac-
ture of paints, dyes, explosives and ceramics. Chromium
may enter a water supply through the discharge of waste
from these industries and may also be discharged from
chromate-treated cooling waters, where they are frequently
added for corrosion control. The hexavalent state of chro-
mium is toxic to humans, animals and aquatic life: it can
produce lung tumors when inhaled and readily induces skin
sensitization.
Note: mg/L is equivalent to ppm (parts per million).
INSTRUCTIONSINSTRUCTIONS
INSTRUCTIONSINSTRUCTIONS
INSTRUCTIONS
READ THE ENTIRE INSTRUCTIONS BEFORE USING THE KIT
• Fill one color comparator cube with 5 mL of the sample
(to the mark).
• Add 1 packet of HI 3846-0, replace the cap and shake
well.
• Wait 6 minutes to allow color to develop.
• Determinewhichcolormatchesthesolutioninthevessel
and record the results in mg/L (or ppm) of chromium
(VI).
REFERENCESREFERENCES
REFERENCESREFERENCES
REFERENCES
Standard Methods for the Examination of Water and Waste-
water, 18th ed., 1992
APHA/AWWA/WEF
HEALTH AND SAFETYHEALTH AND SAFETY
HEALTH AND SAFETYHEALTH AND SAFETY
HEALTH AND SAFETY
The chemicals contained in this test kit may be hazardous if
improperly handled. Read Health and Safety Data Sheets
before performing the test.
• It is better to match the color with a white sheet at
about 10 cm behind the comparator.
Note: To measure Chromium in the 0-1000 ppm range,
use the HI 3845 Chromium Medium Range and
High Range Test Kit.
