LaMotte FORMALDEHYDE IN AIR User Manual

FORM AL DE HYDE IN AIR TEST KIT

CODE 6695

QUANTITY CONTENTS CODE

2 x 120 mL *Formaldehyde Reagent #1 *6697-J 5g *Formaldehyde Reagent #2 *6698-C 100 mL *Formaldehyde Reagent #3 *6699-J 250 mL Distilled Water 5175PT-K 2 Test Tubes, 10 mL, glass, w/cap 0843 1 Test Tube, 12.5 mL, plastic, w/cap 1163 2 Pipets, 1 mL, plastic 0354 1 Spoon, 0.05 g, plastic 0696 1 Formaldehyde In Air Comparator 6696

*WARNING: Reagents marked with an * are considered to be potential health hazards. To view or print a Material Safety Data Sheet (MSDS) for these reagents go to www.lamotte.com. To obtain a printed copy, contact LaMotte by e-mail, phone or fax.

To order individual reagents or test kit components, use the specified code number.

To determine if there are any interferences present in the reagents follow the procedure below, eliminating Steps 2 & 3. If the amount of color which develops in the reagent blank is greater than zero, subtract this value from the test results for the actual concentration of formaldehyde.

PRO CE DURE

1. Fill a clean impinging tube (0933) to the 10 mL line with Distilled Water (5175PT).

2. Connect BD Pump (1949) to Midget Impinger. NOTE: Make sure the long tube is immersed in the absorbing solution.

3. Adjust flowmeter to collect air at a rate of 1.0 Lpm. Sample 30

minutes, or until a measurable amount of formaldehyde is absorbed.

4. At end of sampling period, disconnect impinger and pour contents into clean 10 mL test tube (0843). Dilute to mark if necessary with distilled water (5175PT) to replace any liquid lost through evaporation.

5. Carefully pour 12.5 mL of *Formaldehyde Reagent #1 (6697) into the

12.5 mL test tube (1163). Use the 0.05 g spoon (0696) to add 0.05 g of *Formaldehyde Reagent #2 (6698). Cap and mix until powder dissolves. This mixed reagent is stable for one day only.

CAUTION: *Formaldehyde Reagent #1 is highly poisonous. Read MSDS before use.

6. Use a 1 mL pipet (0354) to add 1.0 mL of reagent from Step 5 to the contents of the 10 mL test tube (0843). Cap and mix.

7. Use a second pipet to add 1.0 mL of *Formaldehyde Reagent #3 (6699). Cap and mix. Wait 20 minutes.

8. Insert test tube into Formaldehyde In Air Comparator (6696). Match sample color to index of color standard. Record the index number.

9. Use the chart below to convert index reading to a concentration. Record as ppm Formaldehyde.

FORMALDEHYDE IN AIR CALIBRATION CHART**

TIME COMPARATOR INDEX NUMBER

(min) 1 2 3 4 5 6 7 8

15 0 0.26 0.54 1.07 2.14 3.20 4.26 5.34 30 0 0.13 0.27 0.54 1.07 1.60 2.13 2.67 60 0 0.07 0.14 0.27 0.54 0.80 1.07 1.34

120 0 0.03 0.07 0.13 0.27 0.40 0.54 0.67

**values in ppm

NOTES:

1. The sampling period specified in the directions corresponds to

concentration which may be encountered in ambient air conditions. High concentrations of pollutants in the atmosphere will require shorter sampling periods, while low concentrations will require longer sampling periods.

2. For applications requiring a high degree of accuracy, an external flowmeter should be used to verify the flow under actual working conditions. LaMotte Company can provide certification of the BD Pump’s flow rate for a modest additional expense.

LaMOTTE COM PANY

Helping People Solve Analytical Challenges

PO Box 329 • Chestertown • Maryland • 21620 • USA

800-344-3100 • 410-778-3100 (Out side U.S.A.) • Fax 410-778-6394

Visit our website at www.lamotte.com

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FORM AL DE HYDE IN AIR TEST KIT

CODE 6695

QUANTITY CONTENTS CODE

*WARNING: Reagents marked with a * are considered to be potential health hazards. To view or print a Material Safety Data Sheet (MSDS) for these reagents see MSDS CD or www.lamotte.com. To obtain a printed copy, contact LaMotte by email, phone or fax.

To order individual reagents or test components, use the specified code number.