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1309 Review
75 Karma

Review on Biopharm Calibration Electrode Traceable Reference by William Bell

Revainrating 1 out of 5

Do Not Buy - Laboratory Chemicals

I bought this product because I thought it would be good for calibrating my Apera pH20 meter. The meter only comes with 7 and 4 calibration solutions, so I wanted 10 solutions as well. After calibrating my meter with this stuff, my meter says my tap water is 6.7 ph. I know it's wrong, it should be 7.2-7.3. Then I bought a calibration solution from Apera Tools. After calibrating with Apera, my meter is now working properly.

Pros
  • Laboratory and Scientific Products
Cons
  • Slightly Wrinkled