pH Buffer Capsules, 4, 7. |
| Dissolve the contents of each of the capsules in 100 ml distilled water. Use these solutions to calibrate your pH meter. Calibrate to pH 7 and then pH 4. |
PRICE:$3.99 |
pH Buffer Capsules, 4, 7. |
| Dissolve the contents of each of the capsules in 100 ml distilled water. Use these solutions to calibrate your pH meter. Calibrate to pH 7 and then pH 4. |
PRICE:$3.99 |
