Item no.
NIST-186g
Unit
set
Shipment details
No Dangerous Good /not restricted
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Description
NIST-186g is intended for use in preparing solutions for calibrating electrodes for pH measuring systems. NIST-186 g consists of two components, each prepared to ensure high purity and uniformity: KH2PO4, potassium dihydrogen phosphate (186-I-g) and Na2HPO4, disodium hydrogen phosphate (186-II-g). A unit of NIST-186g consists of 30 g of potassium dihydrogen phosphate (186-I-g) and 45 g of disodium hydrogen phosphate (186-II-g), each contained in its respective clear glass bottle. A solution of molality 0.025 mol/kg with respect to both KH2PO4 and Na2HPO4 (equimolal formulation) is recommended for the calibration of pH measuring systems. Certified value /// Sample value(s) - please ask for current certificate.
Contents
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Certificate of Analysis (specimen)
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Product data sheet
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