-Certificate including the actual value and expiry date -Certified traceable to primary SRM from NIST/PTB -Resistant to microbes -Convenient 250ml/500 ml plastic bottle with built-in calibration compartment -Economical, since less buffer is used per calibration -certified pH value of one for the pH measurement accredited DKD laboratory
Product Specification: Product Description: Duracal pH Buffer pH value: 4.01 Accuracy: ± 0.01/0.02 Capacity: 3 x 500 ml Certificate: DKD
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