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pH paper กระดาษวัดค่าพีเอช
- After the measurement, the pH value can be found by matching the colors on the pads with the reference color chart printed at the back side of the box
- Pads do not bleed, pad colors do not interfere and mix with each other after the test and ensures reliable pH mesurement
- 100 pieces strip is packed in a clear polystrene box for hygienic storage and for easy dispensing