1.09444
Buffer solution
(citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 3.00 (25°C) Certipur®
别名:
Buffer solution pH 3.00 (25°C) (citric acid/sodium hydroxide/hydrogen chloride)
产品名称
Buffer solution, (citric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 3.00 (25°C) Certipur®
grade
certified reference material
vapor pressure
23 hPa ( 20 °C)
product line
Certipur®
pH
3.0 (25 °C in H2O)
bp
101 °C/1013 hPa
mp
-1 °C
density
1.0 g/cm3 at 20 °C
application(s)
environmental
food and beverages
general analytical
industrial qc
pharmaceutical
format
mixture
storage temp.
15-25°C
Quality Level
Application
The buffer solution is meant to be used as a calibration standard in analytical procedures for pH measuring instruments or pH electrodes and as a control for the measurement of pH of other solutions.
Features and Benefits
- Measured and qualified at an ISO/IEC 17025 and ISO 17034 accredited laboratory
- Traceable to secondary reference standard from NIST and primary certified reference standard from PTB
- Ready-to-use solution
- Available in a tamper-proof plastic bottle and sustainable Titripac® packaging for a reduced waste generation
- Accompanied with a detailed and batch-specific certificate of analysis (CoA) for an effective audit
- Product label follows the ISO Guide 31 and contains information about ordering number, article description, lot number, safety data, and expiry date
- Packaging material subjected to comprehensive stability studies as per ISO Guide 35
General description
The citric acid/sodium hydroxide/hydrogen chloride certified buffer solution of pH 3.00 at 25°C is gravimetrically prepared using high-quality reagents at a registered calibration laboratory. Its pH value is measured using a combined glass electrode following a 5-point calibration method. The measurement is made following DIN 19268 using reference buffer solutions compliant to DIN 19266, NIST, IUPAC, Ph. Eur, and USP. The pH value of the buffer strongly depends on the temperature and therefore a constant temperature must be maintained during its use.
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.
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.
Legal Information
CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany
Titripac is a registered trademark of Merck KGaA, Darmstadt, Germany
存储类别
12 - Non Combustible Liquids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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