Number of Tests/ Kit

 

Sensitivity of Test Kits

       Detection limit of leachable lead is 0.05 mg/litre.

 

Test Kit Tool

 

       Reagent 1                        1 Bottle

1. Open the bottles of Reagent 1 and Reagent 2, pour the drinking water until reach the mark. Close the cap, vigorously shake until the reagents dissolve becoming solution 1 and solution

2. Use the sand paper abrade small area of food contact surface of ceramic wares. Use the sand paper one piece for one area. The first area is the printed area. The second area is the background of item. Press firmly the sand paper with thumb and rub until sand paper is covered with abraded surface dust. (wash hands before rubbing another samples)

4. Place the test paper onto the abraded area of the ceramic wares firmly.

5. Drop 2 drops of solution 1 and press the test paper with toothpick. Gently remove the bubbles from the test paper. Leave for 5 minutes.

7. Drop 2 drops of the solution 2 on both of test papers and LQC sheet then read the result.

 

 

·       If the color of test paper changes to pink, it is detected lead in the sample.

·       If the test paper is yellow or fade away, it is not detected lead in the sample.

 

After Use the Test Kit

·       The solution can be used only 1 day, the rest of the solution must be disposed.

·       The used sand paper cannot be reused because the contamination of lead, must be disposed in the trashbin

 

Precaution

·      Solution 1 is acid, if contact with hands or any parts of the body, wash immediately with soaps and water.

·      Keep out of reach of children

·      Change the sand paper and toothpick every time when testing each spot

 

Keeping/ Age

·      Keeping at room temperature / 6 months.

 

Solution after finding leads