LaMotte GLUTARALDEHYDE GT User Manual

GLUTARALDEHYDE TEST KIT

RANGE 0-300 ppm

MODEL GT • CODE 7064

QUANTITY CONTENTS CODE

60 mL *Sulfuric Acid, 0.2N *6289-H
60 mL *Sulfuric Acid, 0.2N *6289WT-H
120 mL *Sodium Hydroxide, 0.2N *5168-J
15 mL *Phenolphthalein Indicator, 1% *2246-E
50 g Glutaraldehyde Test Powder 7114-H
250 mL Distilled Water 5175PT-K
1 Spoon, 1.0 g, plastic 0697
1 Funnel, plastic 0459
1 Direct Reading Titrator, 0-1.0 Range 0376
2 Test Tubes, 25 & 40 mL, plastic, w/caps 0271
1 Filter Paper, 50/pk 0465-H
2 Pipets, 1.0 mL, plastic 0354

*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.

PRO CE DURE

1. Fill test tube (0271) to 40 mL line with sample.
NOTE: If sample is cloudy, filter before testing.

2. Add 1 drop of *Phenolphthalein Indicator, 1% (2246). If solution
turns pink, add Sulfuric Acid, 0.2N (6289WT) dropwise until
solution turns colorless. If colorless, proceed to Step 3.

3. Fill Direct Reading Titrator (0376) with *Sodium Hydroxide, 0.2N
(5168). While gently swirling tube, add *Sodium Hydroxide, 0.2N
until solution turns pink.

4. Use a 1.0 pipet (0354) to add 2.0 mL (two measures) of *Sulfuric
Acid, 0.2N (6289). Solution will be colorless.

5. Use the 1.0g spoon (0697) to add 1 level measure of Glutaraldehyde
Test Powder (7114). Cap and shake gently for 40 seconds.

6. Refill Direct Reading (0376) with *Sodium Hydroxide, 0.2N (5168).

7. While gently swirling test tube, slowly depress plunger until the pink

color appears and lasts for 30 seconds. Read the test result directly
from the scale where the large ring on the Titrator meets the Titrator
barrel. Record amount used.

8. Repeat procedure using a distilled water blank.

9. Subtract test result from blank. Multiply by 250. Record as ppm

Glutaraldehyde.

ppm Glutaraldehyde = (B – A) (250)

B = mL NaOH used for blank

A = mL NaOH used for sample

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