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Accredited
calibration services:
From -196oC
to 1000oC ASTM thermometers, digital thermometers, PRTs,
thermocouples, thermistors
Specific Gravity
hydrometers. API hydrometers, Baume hydrometers,
Kg/M3 (density) hydrometers, Brix hydrometers, Proof hydrometers
ASTM Class 1 and
OIML E-2 and lesser specification stainless steel and brass laboratory weights.
New calibrated weights and re-calibration of weights you currently have.
Thermo-hygrometers,
chart recorders, humidity sensors, data-loggers
Burets, pipets,
volumetric flasks, graduated cylinders, volumetric glassware
Testing and
certification that an instrument complies with specified accuracy
requirements...
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VOLUMETRIC GLASSWARE CALIBRATION
| Many quality systems now require
that volumetric glassware be calibrated or certified (the terms are often
used interchangeably) where precise measurements are of critical importance. Accordingly,
ICL maintains a modern, well equipped volumetric laboratory. Our calibration
capabilities cover graduated glass volumetric ware with capacities from 0.1 ml to 1500 ml.
Mohr Pipets, Volumetric Pipets
Burets
Graduated cylinders
Volumetric flasks
Centrifuge tubes
Please see our
A2LA Certificate & Scope of
Accreditation for measurement uncertainties. |
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| CALIBRATION of volumetric ware consists of the following services:1) The instrument is inspected
visually for defects in numbering, graduating, or any obvious physical defects.
2) The instrument is examined under a polariscope to be certain it is free from strains
in the glass (usually from the manufacturing process), as severe strains may affect the
integrity of the instrument in the long term.
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| 3) In a pipette or other artifact
with a precision bore, the bore will be examined under magnification for irregularity in
shape or any other defect which would render the instrument unsuitable for certification. 4)
If the instrument does not have a serial number, a ceramic decal serial number will be
affixed. |
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| 5) The instrument is next
carefully cleaned, using solvents or detergents as appropriate, and rinsed with alcohol,
then with water, and finally with distilled water, and thoroughly dried by positive
ventilation using filtered air. 6) The device is then tested per ICL procedure 03,
based on ASTM E-542, as appropriate for the volumes to be contained or delivered.
The meniscus is carefully set at each test point and
the quantity of distilled water contained (or delivered) is carefully weighed.
Water temperature is measured to the nearest 0.01oC both before
and after the measurement and the average is utilized for the calculations.
The weighing results are then corrected for
temperature, and an air buoyancy correction, based upon current air
density (a function of temperature, humidity and atmospheric pressure) is
calculated and applied..
Each test point is calibrated a minimum of three times.
The standard deviation of the results must be appropriate for the precision
of the device, or additional repetitions are required until the desired
level of precision is achieved. |
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7) A calibration report is prepared detailing
all pertinent information concerning the test, the actual volumes contained or delivered,
(with corresponding corrections), and all the required information to convey NIST
traceability. (See photo at right, below) All certificates are laminated in heavy
plastic for protection in the laboratory environment.
8) A durable calibration tag is affixed to the artifact indicating the date of most
recent calibration and the ‘next due’ date. |
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| 9) We will notify you by fax when
your instrument is due for recalibration. (One less thing for you to remember) PRICING:
Prices indicated are per point tested. Minimum charge per device tested:
$110.00
Prices include pre-calibration examination, calibration, and issuance of report
document .
$47.50 per test point
$142.50 for a typical 3 point test on an item
Items with a single test point, such as volumetric flasks:
$110.00 |
Sample
calibration report for volumetric flask |
Recalibration
form and address label to send in your instrument for calibration
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