Calibration Oils
Calibration Oils are one of the most commonly used materials for calibrating
refractometers as they have good traceability, particularly to NIST. Having
a high temperature co-efficient, calibration oils are used where strict temperature
control is adopted, either by Peltier or external waterbath between 10
and 75 °C
(from batches BSLP24 & BSDC17 onwards – previous batches
between 20 and 75°C only). Calibration Oils are batch manufactured
and so values may differ slightly from published data. Oils are supplied
in multipacks of 5 x 5ml bottles with a certificate of calibration, MSDS
and pipettes and have an expiry date 12-months from date of dispatch.
For refractometers operating at high temperatures where water starts to evaporate, an oil may be used as a zero calibration medium.
Typical applications include those in the confectionery, edible oil and mineral oil marketplaces.
| Order Code |
Description |
Specification |
| Multi-pack of 5 x 5ml Bottles |
Calibration Oil |
Refractive Index* |
°Brix** |
| 90-525 |
BSLP |
1.46990 |
71.81 |
| 90-530 |
BSDC |
1.52256 |
91.75 |
| 90-535 |
BSDD |
1.56138 |
--.-- |
Maximum Uncertainty: ±0.000074
RI
±0.030 °Brix Traceable to NIST.
Note:
(BSDD: ±0.000103 RI)
* Typical Refractive Index @ 589.3nm & 20.0°C.
**Equivalent °Brix value @ 589.3nm & 20.0°C.
All quoted values for calibration oils are subject to minor
batch to batch variations. |
|
| Specification |
| Certificate: |
UKAS (ISO17025) |
Uncertainty
(k=2)
(BSDD) |
±0.000074RI
±0.030 °Brix
(±0.000103RI) |
| Shelf Life: |
12-months (minimum) |
| Storage: |
Room temperature.
Keep sealed |
| Traceability: |
ICUMSA
NIST |
|
Uncertainties
The reported expanded uncertainty of measurement is stated
as the standard uncertainty of measurement in units of °Brix (equivalent to weight % sucrose in water) multiplied by the coverage factor k=2,
which for a normal distribution corresponds to a coverage probability of approximately 95%. The standard uncertainty
of measurement has been determined in accordance with publication EA-4/02.
Frequentley Asked Questions
Calibration Fluids – Calibration Oils at temperatures other than
20°C.
FAQ-GRP-049 (pdf)
Calibration Fluids – Use in glass free environment.
FAQ-GRP-051 (pdf)
