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Guarantee of quality and traceability ... HANNA Instruments buffer solutions are manufactured using NIST certified reference materials and standardised with a pH meter calibrated to a primary standard which is also attached to the NIST norm.
Designed to suit a variety of applications, they are available in different types of packaging: • in single use plastic 20 ml bags which are water and air tight for field use, with no risk of contamination; • in 500 mI bottles for laboratory use.
• Acqueous suspension of a formazine-type product • Stable and non-toxic • EPA approved and accurate • Wide range of particle sizes and shapes • NIST-traceable • For the calibration, control, validation or qualification of most turbidimeters • 500 ml bottle • accuracy ± 5 %