ISO/IEC 17025:2017 accredited calibration laboratoryTISI 0261 · ANAB AC-3279
pH meter calibration services in Thailand
Plan calibration of your pH meter and electrode system for laboratory, production and quality-control use. Send operating points and system details for review.
Ask about pH meter calibration →
ISO/IEC 17025:2017 · TISI 0261 · ANAB AC-3279
Choose S K Sale and Service Co., Ltd., a laboratory accredited to ISO/IEC 17025:2017 by TISI (0261) and ANAB (AC-3279), for pH meter work within each body's accredited scope. Reported measurement results and uncertainty support evaluation against your business acceptance criteria.
View SK accreditation and scopes →pH calibration points in the ANAB AC-3279 scope
ANAB AC-3279 scope version 004, page 1 lists pH meters at approximately 25 °C, using SK-WI-001 by comparison with certified values of certified reference materials (CRM), for on-site service. Nominal values are approximate. Confirm the instrument system, points and work conditions before commissioning.
- pH 1.68Nominal pH
- pH 2.00Nominal pH
- pH 4.0Nominal pH
- pH 6.86Nominal pH
- pH 7.0Nominal pH
- pH 9.18Nominal pH
- pH 10Nominal pH
pH calibration points in the TISI scope
TISI 0261 issue 03, pages 13 and 23 list nominal pH 4, 7 and 10 using certified reference materials, in the laboratory and on-site. Confirm the instrument, electrode system, method and site conditions before commissioning.
- pH 4Nominal pH
- pH 7Nominal pH
- pH 10Nominal pH
Listed nominal points are not a continuous pH 0–14 range. An mV readout calibration does not automatically assess electrode performance in solution.
TISI 0261 scope, pages 13 and 23 ↗Identify the meter and electrode
Provide readout, electrode, cables and temperature-compensation details. Pen-type and installed instruments require method and access assessment before acceptance.
Plan points around your process
State operating pH and acceptance limits for food, water, wastewater or laboratory applications. Agree suitable points and the intended system boundary.
Laboratory or on-site calibration
Send the instrument to the laboratory or provide location, quantity and site conditions for on-site review. Declare previous chemical exposure and probe condition.
Use the reported results
Evaluate results and uncertainty against your process criteria. Agree as-found results, adjustment or conformity statements and decision rules before work.
Details for a pH meter calibration enquiry
- Brand, model, serial number and quantity
- Electrodes, cables and associated accessories
- Operating pH, required points and acceptance criteria
- Location and required delivery date
- Previous certificates or reported faults
pH meter calibration questions
What does pH meter calibration cost?
Pricing depends on the instrument, electrode system, points, quantity and service location. Send details for confirmed pricing and delivery.
Should I send the electrode with the meter?
For evaluation of the actual system, identify the readout and electrodes used together and confirm which components should be sent.
Is on-site pH calibration available?
The TISI scope lists on-site pH meter work, subject to confirmation of instrument, method, points and site conditions.

