NABL Accredited · Equipment Calibration
Freezer Calibration(Sub-Zero Thermal Mapping)
Calibration of laboratory freezers and low-temperature cabinets — sub-zero multi-point mapping, set-point accuracy and stability with traceable sensors for sample preservation and freeze-thaw work.
-40°C
Range Capability
2–4 Days
Report TAT
NABL
Accredited
NABL Accredited Lab · ISO/IEC 17025:2017
Digital Reports via Autovity QLMS
Pan-India · 7 Lab Locations
Est. 2009 · 20,000+ Projects
Overview
What is Freezer Calibration?
Freezers preserve reference samples, hold retained specimens and drive freeze-thaw durability cycles — and sub-zero chambers suffer the same silent failures as ovens: door-seal gradients, defrost-cycle spikes and controller drift that a single display never shows.
Global Lab maps freezer chambers with traceable low-temperature sensors, logging set-point accuracy, spatial uniformity and stability through defrost cycles, and certifies the usable volume with uncertainties — protecting both preserved samples and cycle-based durability tests.
Reviewed by Mahemood Ahmad, Lab Manager — NABL Accredited Laboratory, Global Lab India
NPLI-Traceable References
Reference standards with unbroken traceability to national standards.
ISO/IEC 17025 System
Calibration under our accredited laboratory quality system.
Defrost-Aware Logging
Cycle spikes captured, not hidden between spot checks.
Fast Turnaround
Certificates in 2–4 days — minimal instrument downtime.
As-Found / As-Left Data
Both states recorded, so drift since last calibration is visible.
Digital Certificates
Calibration certificates via the Autovity QLMS dashboard.
Test Procedure
How the Freezer Calibration is Conducted
- 1
Sensor Placement
Traceable low-temperature sensors are positioned per the mapping plan. - 2
Stabilisation & Logging
The chamber is logged at set-point over a period covering defrost cycles. - 3
Evaluation
Set-point error, uniformity and stability are evaluated with uncertainty. - 4
Certification
Mapping results and verdicts are issued via Autovity QLMS.
Standards & Specifications
Applicable Test Standards
| Standard | Title | Scope | Type |
|---|---|---|---|
| ISO/IEC 17025:2017 | Competence of Testing and Calibration Laboratories | Calibration System | International |
| NPLI-Traceable Sensors | Certified Low-Temperature Reference Chain | Reference Standards | Traceability |
Applications
Where is the Freezer Calibration Used?
Retained-sample preservation freezers
Freeze-thaw durability test cabinets
Chemical reagent storage units
Environmental lab sample storage
NABL scope periodic verification
Post-repair requalification
Why Choose Global Lab
Our Advantages
Audit-Ready CertificatesFormats aligned to NABL assessment and customer audit expectations.
Measured Uncertainty StatedEvery certificate reports measurement uncertainty, not just readings.
Drift VisibilityAs-found/as-left records expose instruments drifting out of tolerance.
Lab + On-Site OptionsSite calibration available for fixed or heavy equipment.
Reminder TrackingDue-date tracking so recalibration is never missed.
Digital ReportingCertificates delivered via the Autovity QLMS dashboard.
Quick Answers
Frequently Asked Questions
What standard governs the Freezer Calibration?
Freezer Calibration is tested per ISO/IEC 17025:2017 and NPLI-Traceable Sensors.
How long does the Freezer Calibration take?
Reports are typically issued within 2–4 Days of sample receipt at the lab, delivered digitally via the Autovity QLMS client dashboard.
Where is the Freezer Calibration used?
It is commonly used for retained-sample preservation freezers, and for freeze-thaw durability test cabinets.