NABL-accredited temperature uniformity mapping and calibration for laboratory ovens, drying ovens, vacuum ovens, and microbiological incubators. ISO 17025 certificates accepted by WHO GMP, NABH, FDA, and Schedule M auditors.

A pharmaceutical stability chamber set to 40°C/75% RH that actually runs at 42°C in one corner and 37°C in another is not maintaining a controlled stability condition — it is running an uncontrolled experiment. Temperature non-uniformity inside laboratory ovens and incubators directly affects the validity of stability data, analytical results, and microbiological testing.
Laboratory oven calibration involves placing multiple calibrated temperature sensors at defined grid points throughout the oven chamber and running the equipment at its working temperature until thermal equilibrium is reached. Temperature uniformity and stability over time are measured and documented. The result is a NABL certificate confirming the oven meets ISO 17025 and WHO GMP requirements for a qualified thermal environment.
Multi-point temperature survey at defined grid positions documents uniformity and cold spots.
Uniformity (spatial) and stability (temporal) calculated and compared against specification limits.
NABL CC-2480 certificate issued — accepted by WHO GMP, NABH, FDA, and Schedule M auditors.
Laboratory hot air ovens calibrated for temperature uniformity, stability, and accuracy using multi-point mapping.
Industrial and pharmaceutical drying ovens calibrated for temperature uniformity and set point accuracy across the working zone.
Vacuum ovens calibrated for both temperature accuracy and vacuum level — verified together during combined parameter mapping.
Microbiology incubator ovens calibrated for temperature stability, uniformity, and CO₂/humidity control where applicable.
Oven received and tagged. Physical inspection — door seal, heating elements, thermostat, and interior condition documented as-found.
Calibrated RTD probes or temperature loggers placed at defined mapping grid points — minimum 9 points per IEC 60068-3-5 protocol.
Temperature survey run at set point with full load configuration. Temperature at each point recorded over the stabilisation and holding period.
Maximum temperature variation (uniformity) and temperature fluctuation over time (stability) calculated from the survey data.
Post-adjustment temperature survey confirms uniformity and stability within specification. Expanded uncertainty calculated per ISO/IEC 17025.
NABL CC-2480 certificate issued with temperature uniformity data, stability, uncertainty (k=2), and ISO 17025 / IEC 60068 traceability.
Every laboratory oven calibration follows ISO 17025 and IEC 60068 temperature chamber protocols with full traceability to NPL national temperature standards. Our certificates satisfy WHO GMP, Schedule M, NABH, FDA, and all pharmaceutical and laboratory audit requirements.
Our NABL accreditation is recognized under the ILAC Mutual Recognition Arrangement — accepted in 100+ countries by FDA, WHO, GPCB, and international audit bodies.
For internal calibration checks, in-process equipment, and non-audit requirements, Prism offers non-NABL laboratory oven calibration with the same calibrated equipment and qualified engineers — at a lower cost and faster turnaround.
All non-NABL jobs use the same NPL-traceable references — only the certificate type differs.
Non-NABL jobs completed faster — ideal for urgent maintenance or large bulk batches.
Priced lower than NABL — right choice for internal checks and non-audit use cases.
Available at our Ahmedabad lab and as onsite service across Gujarat — same team, same quality.
Our engineers provide onsite laboratory oven calibration at pharmaceutical plants, hospitals, and research labs across all major Gujarat cities.
Get a fast quote for NABL or non-NABL laboratory oven calibration. Our team responds within 2 hours.
— FROM OUR BLOG —
NABL Disclaimer: Calibration services are provided under NABL Certificate CC-2480 in strict accordance with our officially approved scope of accreditation (ISO/IEC 17025:2017). Parameters or onsite conditions falling outside our active NABL scope are processed with standard metrological traceability to NPL/BIPM national standards.