Temperature Calibration

Next only to Singapore’s National Metrology Centre (NMC), we have the lowest temperature measurement uncertainties for precise measurements. ISOLAB has acquired the best equipment, fixed points, reference standards, temperature liquid baths and dry block calibrators for accredited calibration services.

High-Temperature Calibrations

We have the capability to perform calibrations up to 1300 ˚C and have served major commercial laboratories from Singapore, neighbouring countries and their national laboratories.

Capability Testing

ISOLAB has a long history of successfully participating in various National Proficiency Test (PT) and Inter-laboratory comparison (ILC) test programs.

Thermal Mapping & Validation

Identify temperature stability, uniformity, fluctuation, hot spots and cold spots within storage areas. Similarly, we can assess the thermal distribution to decide on the best placements of products to ensure optimal performance, in compliance with regulations, and product safety.

Our Process
  • STEP – 1 Develop a Test Plan
    • Critical mapping Points
    • Determining Sample Rate
    • Establishing Logger Criteria
    • Selecting Customized Mapping Protocol System
  • STEP – 2 Calibrating (12 Point CAL) and Programming of Data Loggers
  • STEP – 3 Placement of Data Loggers and Documenting Test Plan according to Floor layout
  • STEP – 4 Retrieving Data Loggers and Documenting Test Plan Results
  • STEP – 5 Downloading and Analysing Raw Data
  • STEP – 6 Post Calibration
  • STEP – 7 Completing Final Mapping Report
  • STEP – 8 Remediation
Eight Steps of a Temperature Validation Plan 
  • STEP – 1 Write a plan
  • STEP – 2 Check equipment & documentation
  • STEP – 3 Confirm device operation
  • STEP – 4 Set up the data loggers
  • STEP – 5 Place the data loggers
  • STEP – 6 Periodically check the progress
  • STEP – 7 Retrieve and store the data
  • STEP – 8 Report the findings

Reference Standards That Surpass Compliance Needs

Discover reference standards that set a new benchmark for measurement uncertainty and precise accuracy. Our calibration capabilities for Standard/Semi-standard PRTs and Standard/Semi-standard thermocouples puts us ahead of other commercial laboratories.

Calibration Services

Water Triple Point (TPW) and Gallium Melting Points (GMP) and more.


High precision Wheatstone bridges, high-resolution indicators and primary fixed resistors.

In-House Temperature Calibration Services

  • Thermocouple Sensors, (Type E, J, K, N, T, R, S and B Thermocouple types)
  • RTD Sensors, (PT50, PT100, PT500, PT1000, Ni100, Cu100 (2 wire, 3 wire and 4 wire systems))
  • Digital Thermometers
  • Standard and Semi-standard Thermocouples
  • Standard and Semi-standard PRT’s
  • Temperature Transmitters and Temperature Switches (Thermocouple and RTD)
  • Fixed point calibration (by using Water Triple Point, and Gallium Melting Point Cells)
  • Temperature Dry Block Calibrators and Metal Block Calibrators
  • Green mark Sensors, NTC and PTC Thermistor Sensors (1 kΩ, 5 kΩ, 10 kΩ and 30kΩ)
  • Infrared Thermometers, Infrared Imaging Devices and Pyrometers (-20°C up to 700°C)
  • Temperature and Multi-function Calibrators and Simulators (All thermocouples and RTD Signals)
  • Digital Indicators and Temperature Controllers
  • Temperature Data Loggers and Scanners
  • Wireless Temperature Loggers
  • Temperature Chart Recorders
  • Portable Temperature Display Indicators
  • Large display temperature indicators
  • Bimetallic Thermometers
  • Capillary Thermometers
  • Liquid-in-Glass thermometers
  • Surface Temperature Measuring Sensors, Surface Plates, and Hot Plates
  • Temperature System Calibration
  • Calibration of Explosion proof and Intrinsically safe version Temperature Sensors

On-Site Temperature Calibration Services

  • Temperature Alarming and Monitoring Systems
  • Temperature Validation
  • Temperature In-situ verification
  • Building Maintenance System (BMS) Temperature Devices
  • Temperature Enclosures
  • Temperature Oven
  • Electrode Ovens
  • Temperature Furnaces and Muffle Furnaces
  • Water baths
  • Freezers, Chest Freezers and Ultra low freezers
  • Refrigerators and Coolers
  • Incubators
  • Autoclaves
  • Logistics and Warehouse Temperature Mapping
  • Walk-in Cold Rooms and Chillier Rooms
  • Walk-in Freezer Rooms
  • Mobile Cold Chain Trucks and cold chain Transportation Vehicles