Product Application
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Buffer Solution pH4.00 (Phthalate) NIST Standard Solution ready to use for pH measurement, Fisher Chemical™ 2.5L HDPE plastic bottle.
Buffer solutions Specifications, Ph At 20 C 4,01 Uncertainty 0 01 Composition Per Litre Is 10,3G Potassium Hydrogen Phthalate.
where water is specified for solution or dilution of test substances in pH determinations use carbon dioxide free water.
