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15 mL *Hardness Reagent #5 *4483-E
15 mL *Hardness Reagent #6 *4485-E
60 mL Hardness Reagent #7 4487WT-H
1 Test Tube, Hardness, w/ cap 4488
*WARNING: Reagents marked with an * are considered to be potential health hazards.
To view or print a Safety Data Sheet (SDS) for these reagents go to .
Search for the four digit reagent code number listed on the reagent label, in the contents
list or in the test procedures. Omit any letter that follows or precedes the four digit code
number. For example, if the code is 4450WT-H, search 4450. To obtain a printed copy,
contact LaMotte by email, phone or fax.
Emergency information for all LaMotte reagents is available from Chem-Tel:
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Fill the test tube (4488) to the desired line with the sample water.
upper line: 1 drop = 10 ppm CaCO
middle line: 1 drop = 1 gpg CaCO
lower line: 1 drop = 20 ppm CaCO
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3
3
Add 5 drops of
*Hardness Reagent #5
(4483).
Swirl to mix. Solution
Add 5 drops of
*Hardness Reagent #6
(4485).
will turn red if hardness
is present. If solution
is blue, there is no
measurable amount of
hardness.
While gently swirling the tube, add Hardness
Reagent #7 (4487WT) one drop at a time until the
red color changes to blue. Count the number of
drops added. Hold bottle vertically.
Multiply the number of drops used in Step 6 as follows:
Swirl to mix.
Upper line: each drop equals 10 ppm Hardness as CaCO
Middle line: each drop equals 1 gpg Hardness as CaCO
Lower line: each drop equals 20 ppm Hardness as CaCO
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