All the right ingredients to calibrate your pH meter simply and accurately.
These pH 7.01 and pH 4.01 buffer solutions are made from established formulas and are standardized with a pH meter that is calibrated to the NIST primary standard buffer solutions and packaged in containers that guarantee solutions stay away from light. 10 pieces per kit (5 ea. of pH 7.01 & 4.01 20 ml, single-use sachets)
Country of Origin: Hungary
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