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Formulated to provide precise pH determinations, these buffer solutions which are standardized against N.I.S.T.-certified reference samples, are ideal for calibrating electrodes and pH meters. The buffers are color-coded to avoid error and accurate to within ±0.01 pH at 25°C (77°F). Each buffer contains a preservative/mold inhibitor and a shrink-sealed cap to prevent contamination and leakage. Temperature compensation charts are included with each buffer solution. The shelf life of the buffer solutions are 40 months.
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† All dollar amounts on this site are shown in Singapore currency.
Note: For NIST Certificate of Conformance on pH solutions, use model number ending in "-CAL-PH".
Certification available at time of purchase only.
NIST Certificate of Conformance does not include points; it does include batch number.
Certificates are not available for Deionized Water or Individual Use Packets.
Ordering Example: (1) PHA-4 4.00 pH buffer solution, $29.00, plus (1) PHA-7 7.00 pH buffer solution, $29.00, $29.00 + 29.00 = $58
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