Nitrite Pack Test
nitrite pack test
Nitrite Pack Test Instructions:
1 Pull out the filament of tube's tip.
2. Evict the air in the tube
3. Insert the liquid which is detected, stop inhaling water when it is half around
4. Rock 5 to 6 times slightly, after the specified time(pls rock 1 to 2 times in the halfway).compare with the standard colorimetric card.