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Formulated to provide precise pH determinations, these buffer solutions which are standardised against N.I.S.T. certified reference samples, are ideal for calibrating electrodes and pH meters. The buffer is colour-coded to avoid error and accurate to within ±0.02 pH at 25°C (77°F).
Each buffer contains a preservative/mould inhibitor and a coated foam liner cap to prevent contamination and leakage.
Features:
4.01pH Buffer Solution
Stored in a lightweight HDPE plastic bottle.
Capped with a coated foam liner.
4 oz. bottle (120 ml)
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Conditions of Use 
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