2951HR High Range QAC test papers are specifically formulated to read high range levels of QAC. Range and sensitivity is 200, 400, 600, 1000, 1500 ppm.
- Immerse pad in solution and remove immediately
- Hold strip level for 5 seconds. Shake off excess water from pad. Compare pad to colour chart above
- Sample must be at room temperature
- If testing Hyamine 1622, change dip time to 45 seconds in Step 1
- Keep out of sunlight
- Keep vial closed when not in use