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1.01960

Supelco

Potassium dihydrogen phosphate/ di-sodium hydrogen phosphate

certified reference material, traceable to NIST (SRM), traceable to PTB

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grade

certified reference material

Quality Level

Agency

traceable to NIST (SRM)
traceable to PTB

storage temp.

15-25°C

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This Item
1.065871.019621.01965
agency

traceable to NIST (SRM)

agency

-

agency

complies with DIN 19266

agency

complies with DIN 19266

storage temp.

15-25°C

storage temp.

15-25°C

storage temp.

15-25°C

storage temp.

15-25°C

Quality Level

300

Quality Level

100

Quality Level

300

Quality Level

300

General description

Certipur® certified secondary standard reference materials are used to precisely calibrate and monitor pH measurement instruments and buffer solutions. They are analyzed in our ISO/IEC 17025 and ISO 17034 accredited calibration laboratories against certified primary standard reference materials (SRM) in accordance with DIN 19266, IUPAC, NIST, Ph. Eur and USP. Certipur® reference materials offer maximum accuracy, reliability and convenience and help avoid costly repeat analyses.
Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.
Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.

Application

Potassium dihydrogen phosphate/ di-sodium hydrogen phosphate [pH(S)=6.86₅ /pH(S)=7.41₃ (25 °C)] is a certified secondary standard buffer solution used as a calibration buffer standard for pH instruments or pH electrodes.

Features and Benefits

  • The product is delivered with a comprehensive, batch-specific Certificate of Analysis showing the relevant data for the quality management system.
  • The pH value of this Certipur® buffer solution is qualified using differential potentiometry with two platinum hydrogen electrodes against NIST & PTB primary reference materials [pH(S)=6.865 /pH(S)=7.413 (25 °C))].
  • This buffer standard has a guaranteed shelf life of 4 years.
  • It is a Certified Reference Material (CRM) offered in neat format. Solution of this standard is prepared in-house per instructions in European Pharmacopoeia (Ph. Eur. 2.2.3).
  • Intended for extremely precise calibration, qualification and monitoring of pH instruments and routine assessment of their performance.

Analysis Note

pH-value (25 °C): 6.861 - 6.867

Legal Information

CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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T1503
Product Number
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25G
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705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

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Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

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