H-B Instrument Company added timers and stopwatches to their scope of A2LA accreditation in accordance with the recognized International Standard ISO/IEC 17025:2005 General Requirements for the Competence of Testing and Calibration Laboratories. H-B’s scope includes timers, stopwatches, liquid in glass thermometers, electronic thermometers, bi-metal dial thermometers, Proof Hydrometers, Specific Gravity Hydrometers, Baume Heavy and Light Hydrometers, and American Petroleum Institute Scale Hydrometers.

Click here to view our A2LA certificate. Click here to view our scope.

A Statement of Accuracy/Traceability accompanies most instruments and indicates testing against a reference standard found the instrument to have accuracy within the specification for that type of instrument - it meets conformance standards.

A Calibration Report, specifies corrections at specific points and involves checking the instrument under magnification for any defects - cracks, impurities, etc that may impair the functionality of the instrument. Your instrument will be compared to NIST and DKD/PTB certified standards at the
specified test points in accordance with the aforementioned test procedures and methods. A signed and laminated Calibration Report will be issued showing the results of the test meeting the quality and record keeping requirements for ISO/IEC 17025, ISO 9000 and FDA.

There are several reasons why a thermometer/hydrometer may need to be recalibrated: ISO 9000, quality control and other regulations may require annual Calibration Reports. These reports with corrections enable a person to calibrate or check other instruments within certain tolerances.

According to GMP 11, NIST Publication, March 2003 - Good Measurement Practice for Assignment and Adjustment of Calibration Intervals for Laboratory Standards, Page 4 of 6 Table 4, Calibration Intervals for Temperature Standards, Item: Liquid-in-glass standards...initial calibration interval 6 (months). Page 5 of 6 Table 5, Calibration Intervals for Environmental Equipment. Item: Barometer...initial calibration interval 12 (months), Hygrometer...24 (months) and Thermometer...12 (months).

A2LA accreditation in accordance with ISO/IEC 17025:2005 covering liquid in glass, electronic and bi-metal thermometers, proof, specific gravity, Baume heavy and light and American Petroleum Institute Scale hydrometers, timers and stopwatches, H-B's calibration takes into account test procedures of NBS Monograph 150 and 174 and ISO 17025, quality standards meeting ISO 9001:2008 and ISO/IEC 17025:2005, ANSI/NCSL Z540-1 criteria and individual calibration to NIST and DKD/PTB standards.

3 Steps To Order:
1. CALL H-B at 610-489-5500 to place your calibration order. A Service Request (SR) number, pricing and expected delivery date (avg. 5 business days) will be provided.
2. SEND your instrument/s to H-B. Our team of experts will inspect and calibrate your instrument against NIST and DKD/PTB certified standards and corrections will be recorded.
3. RECEIVE your instrument and Calibration Report in a heavy-duty storage box. Calibration data will be stored in our database for future reference.
**VALUE ADDED: An annual reminder will be sent for recertification 11 months after initial certification.
Click here to learn more about our Calibration Services.