Hanna Instruments HI 3842, HI 3841 User Manual
Instruction Manual
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
Note: To dose the right drops volume squeeze gently
the reagent bottle.
TABLE 2TABLE 2
TABLE 2
TABLE 2TABLE 2
CONVERSION DATACONVERSION DATA
CONVERSION DATA
CONVERSION DATACONVERSION DATA
HI 3841
Hardness
Medium Range
Test Kit
www.hannainst.com
Dear Customer,
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 a 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 damage, notify your Dealer or the nearest Hanna office
immediately.
Each kit is supplied with:
HI 3841-0 Hardness MR Reagent, 1 bottle (30 mL)
•
with dropper;
1 calibrated plastic vessel (50 mL).
•
Note: Any damaged or defective item must be returned in
its original packing materials.
Range 40 to 500 mg/L (ppm) CaCO
Smallest Increment 20 mg/L (ppm) CaCO
Analysis Method Drop count titration
Sample Size 50 mL
Number of Tests 50 (average)
Case Dimensions 115x105x80 mm (4.5x4.1x3.1")
Shipping Weight 120 g (4.2 oz.)
SIGNIFICANCE AND USESIGNIFICANCE AND USE
SIGNIFICANCE AND USE
SIGNIFICANCE AND USESIGNIFICANCE AND USE
Historically, water hardness had been defined by the
capacity of water to precipitate soap. The ionic species in
water causing the precipitation were later found to be
primarily calcium and magnesium. Currently, therefore,
water hardness is actually a quantitative measure of these
ions in the water sample.
CHEMICAL REACTIONCHEMICAL REACTION
CHEMICAL REACTION
CHEMICAL REACTIONCHEMICAL REACTION
The Hanna Test Kit determines total hardness in water via
a titrimetric method. Calcium and magnesium form a
complex with EDTA and the reaction end-point is indicated
by the change in color of the indicator from red to blue.
INSTRUCTIONSINSTRUCTIONS
INSTRUCTIONS
INSTRUCTIONSINSTRUCTIONS
READ THE ENTIRE INSTRUCTIONS BEFORE USING THE KIT
• Remove the cap from the plastic vessel. Rinse the plastic
vessel with the water sample, and fill it to the 50 mL
mark with the sample.
• Before start adding reagent, check carefully that the
dropper tip is clean. If not, clean it with a soft tissue
before use it.
• Add drops of HI 3841-0 reagent until the color changes
to pink and then to blue (titration end point), while
swirling the sample after each drop and counting the
ISTR3841R2 07/01
drops needed to reach the end point.
3
3
• Use the Conversion Table or calculate the Hardness:
# of DROPS * 20 = ppm CaCO
3
1 ppm=1 mg/L=0.1f=0.0556D=0.07E
NOTE: NOTE:
NOTE:
NOTE: NOTE:
Store the reagent bottle out of direct sunlight
Adaptation of the E.P.A. recommended 130.2 method.
The chemicals contained in this test kit are safe in normal
domestic term. Read Health and Safety Data Sheet before
performing the test.
TABLE 1TABLE 1
TABLE 1
TABLE 1TABLE 1
HARDNESS OF WATERHARDNESS OF WATER
HARDNESS OF WATER
HARDNESS OF WATERHARDNESS OF WATER
Drops:
1 - 4 very soft
5 - 8 soft
9 - 12 medium
13 - 16 hard
17 very hard
To measure: Hardness Low Range use HI 3840 Test Kit
ppm : is milligrams CaCO3 per Liter
f : French Degrees
D : German Degrees
E : English Degrees
REFERENCESREFERENCES
REFERENCES
REFERENCESREFERENCES
HEALTH AND SAFETYHEALTH AND SAFETY
HEALTH AND SAFETY
HEALTH AND SAFETYHEALTH AND SAFETY
Hardness High Range use HI 3842 Test Kit
Loading...