Toluene/water, traceable to SRM from NIST and PTB n (20°C)=1,4969 Certipur®
Application
Refractive index standard kit 2 for use as a calibration standard for refractometers.
Caractéristiques et avantages
Five 8ml ampoules of the standard solution and five 8ml ampoules with water are included in each kit
Traceable to recognized national standards, and to units of measurement recognized at the National Institute Standards and Technology (NIST) and Physical Technical Institute (PTB)
Solutions that are stable, ready to use, and have long minimum shelf lives
A certificate of analysis (CoA) is included with every standard kit
Informations légales
CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany
Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".
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1) What is the unit of measurement used for these standards (Brix units, Specific Gravity etc)?
2) What is the range that the calibration kit covers?
3) Once reconstituted, how long are these materials good for?
1 réponse
Technical Support
·il y a 2 années
The method of analysis is the refractive index which is measured by an Abbé-type refractometer at a wavelength of 589,3nm at 20°C and 25°C. Stable solutions have a minimum shelf life of 3 years, this kit is supplied ready to use.
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![Refractive index standard traceable to NIST, traceable to PTB, [α]/D 10°, Brix CERTIPUR®](/deepweb/assets/sigmaaldrich/product/images/137/112/c7ee9f1e-5b1a-475f-9853-3595c8466217/640/c7ee9f1e-5b1a-475f-9853-3595c8466217.jpg)
