1.07827
Buffer solution
(acetic acid/sodium acetate) traceable to SRM from NIST and PTB pH 4.66 (20°C) Certipur®
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Synonym(s):
Buffer solution pH 4.66
UNSPSC Code:
12161704
NACRES:
NA.25
Recommended Products
grade
certified reference material
Quality Level
product line
Certipur®
pH
4.7 (20 °C in H2O)
density
1.00 g/cm3 at 20 °C
application(s)
environmental
food and beverages
general analytical
industrial qc
pharmaceutical
format
mixture
storage temp.
15-25°C
Related Categories
General description
Also known as an acetate buffer, it is prepared gravimetrically with acetic acid, sodium acetate, and high-purity water. This acetic acid/sodium acetate buffer is analyzed using a combined glass electrode following a 5-point calibration method, in accordance with DIN 19268, against certified primary reference standards as per DIN 19266.
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.
Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.
Application
The buffer solution is used in analytical procedures for the calibration, qualification, and monitoring of pH measuring instruments and as a control for testing other buffer solutions.
Features and Benefits
- Measured and qualified in a ISO/IEC 17025 and ISO 17034 accredited laboratory
- Traceable to SRMs from NIST and primary certified reference standards from PTB
- Ready-to-use solution available in a sealed bottle with convenient packaging to protect against contamination
- Long-lasting with a shelf life of 3 years
- Accompanied with a detailed certificate of analysis (CoA) for an effective audit
Legal Information
CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany
recommended
Product No.
Description
Pricing
Storage Class Code
12 - Non Combustible Liquids
WGK
nwg
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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