Separate the required number of the test segments in the line of perforation. Open the protective cover gently. Do not tear it off. Put the prepared segment(s) on a flat surface.

Yes, gently separate the test in the line of perforation.

Shelf-life is 24 month

No, thanks to modern technology, the test changes color only when the reaction occurs.

No, it's enough to close the test carefully.

No, because of the coloration changes and disappears over time.

No, but it’s not necessary, because the used test won't store for a long time.

The red or magenta color shows HP+ result.

Yes

Yes

No

Store test

• in the manufacturer’s packaging

• in a dark, dry place with the temperature from +15 °С to +50 °С

• in a place protected from mechanical actions (friction, pressure, strokes)

• keep the device away from the ammonia vapor, moisture and direct sunlight

The order-lead time usually not exceeds 1 month.