Тест GH - test for measuring total water hardness.
INSTRUCTION:
1.Wash measuring vial few times with water that is to be tested.
2. Add 5ml of water that is to be tested to measuring vial.
3. Add the reagent drop by drop counting them, until color change from red to olive-green.
4. Each drop is equal to 1 German degree of total hardness.
Immediately after measuring water hardness, thoroughly wash the measuring vial.
Avoid indicator solution or water after testing getting into aquarium!
In order to get accurate measurements, the temperature of water that is to be tested must be 25±3°С, and room temperature must not be below 20°С.
Storage life: 24 months, but no more than 12 months since opening.
Keep at 10-25°С in dry dark place! Keep out of reach of childrenі!
Avoid skin contact! Upon skin contact wash with large amounts of water!