DURACAL Buffer pH 1,09 500 ml

DURACAL Buffer pH 1,09 500 ml
pH Buffer Solutions

View Full-Size Image
( Hamilton )
Call for Pricing

Ask a question about this product
Can you trust your buffer solution? Simple handling for GMP, GLP, ISO 9001, EN 45000, calibration, verification, traceability, certification from an accredited organization: key words that are increasingly important. professional operation: The calibration of pH and Redox electrodes has never been easy. All calibration procedures assume that the labeled values of the calibration buffers are correct. But buffer values can change over time and so can your results. A complete range of patented buffer solutions, provides never before achieved pH stability. Hamilton guarantees DURACAL pH buffers for 5 years after the date of manufacture. The pH 9. 1 and pH 10.01 buffers are even stable in air. See the diagram below for details. High buffering capacity provides rapid, stable calibration. Preservatives are added to prevent microbial and mold growth. Traceability An important issue for the production of Certified Reference Material is to ensure the traceability through an unbroken chain of comparisons to reference material of the highest metrological quality (Primary Reference Material) from NIST1) and PTB ) . Unlike other manufacturers where only a top-down traceability is applied, Hamilton works with a circular or closed-loop traceability. This closed-loop traceability ensures the users of Hamilton DURACAL buffers’ unique reliability! Top-down traceability: At Hamilton, the pH value of DURACAL buffers is determined by comparison against two Secondary Reference Buffer Solutions. These are purchased from accredited suppliers for Secondary Reference Materials. The solutions themselves are compared against Primary Reference Solutions from PTB1) or NIST ). The measurement uncertainties from each measurement comparison are known and documented. Bottom-up traceability: To ensure the highest possible accuracy and full reliability of the pH value, a representative number of samples from every single production lot is sent to a German DKD ) laboratory (DKD-K-06901) for an external, independent and impartial verification. In this laboratory, the DURACAL samples are compared against Secondary Reference Solutions from DKD-K-06901. The Secondary Reference Solutions are of course compared against Primary Reference Solutions from PTB. At this stage, the loop is closed: the PTB Primary Reference Solution is the starting and end point of the traceability loop. DKD provides Hamilton with a calibration certificate for every DURACAL production lot. Due to the complete traceability of the measurement procedure and the assignment of uncertainties to the particular testing steps, the DURACAL buffers can be classified as “certified reference material “ (CRM-certified reference material). Features 1) NIST National Institute of Standards and Technology, • Convenient 50 mL and 500 mL plastic bottle with built-in calibration compartment Gaithersburg MD, USA • Economical, since only about 0 mL of buffer is used per calibration ) PTB • Actual value is determined by a DKD laboratory, accredited for pH measurement Physikalisch Technische Bundesanstalt, Braunschweig, Germany • First class certificate with traceability to international standards ) DKD • Certificates available at http://www.hamiltoncompany.com/cert Deutscher Kalibrierdienst DKD-K-06901, • Expiration date on the bottle Zentrum für Messen und Kalibrieren GmbH, Wolfen, Germany • Immune to micro-organisms p H valuepH value A ccuracyAccuracy S tabilityStability ( months)(months) C ertified byCertified by P ackagePackage c ontentscontents O rderOrder N o.No. 1.09



Vendor Information