IS 2296:2001 is the Indian Standard (BIS) for temperature measurement in industry. IS 2296 covers industrial temperature measurement — selection, installation, and accuracy of thermocouples, RTDs, thermometers, and pyrometers. Type K thermocouple (-200 to 1260°C) and Pt100 RTD (-200 to 850°C) are the most commonly used sensors in Indian industry.
Code of practice for industrial temperature measurement covering thermocouples, resistance temperature detectors (RTD), thermometers, and pyrometers.
Overview
Status Current
Usage level Frequently Used
Domain General — Testing Methods and Quality Control
Type Code of Practice International equivalents
Also on InfraLens for IS 2296
Practical Notes
! Type K thermocouple is the most widely used in Indian industry — covers most process temperatures.
! Pt100 RTD is preferred for accuracy below 600°C — better stability and accuracy than thermocouples.
! Always use extension wire matching the thermocouple type — mismatch causes measurement errors.
! Calibrate temperature instruments at least annually — drift is a common source of measurement error.
Frequently referenced clauses
Cl. 3 — Thermocouple types (K, J, T, R, S, B) and ranges
Cl. 4 — RTD types (Pt100, Pt1000) and ranges
Cl. 5 — Installation best practices
Cl. 6 — Accuracy classes and tolerances
Cl. 7 — Calibration requirements
temperature measurement thermocouple RTD pyrometer thermometer industrial instrumentation
International Equivalents Similar International Standards
IEC 60584-1 IEC
High Current
Thermocouples — EMF specifications and tolerances
IEC 60584 covers thermocouple specifications. IS 2296 references IEC for thermocouple types and tolerances.
Industrial platinum resistance thermometers and platinum temperature sensors
IEC 60751 covers Pt100/Pt1000 RTDs referenced by IS 2296.
Key Differences
≠ IS 2296 is a comprehensive code covering all temperature measurement methods. IEC has separate standards per sensor type.
Key Similarities
≈ Thermocouple types (K, J, T, etc.) and RTD specifications (Pt100) are internationally standardized with identical specifications.
Parameter Comparison
Parameter IS Value International Source Pt100 at 0°C 100.00 Ω 100.00 Ω IEC 60751
⚠ Verify details from original standards before use Report Error
Key Values5 Quick Reference Values
Type K range -200 to 1260°C
Type J range -40 to 750°C
Pt100 RTD range -200 to 850°C
Pt100 at 0°C 100.00 Ω
Type K accuracy (Class 1) ±1.5°C or ±0.4%
Key Formulas
RTD resistance: Rt = R0(1 + αt + βt² + γt³) for Pt100
Tables & Referenced Sections Key Tables
Table 1 — Thermocouple types, ranges, and tolerances
Table 2 — RTD accuracy classes
Frequently Asked Questions1 Thermocouple or RTD? + RTD (Pt100) for: high accuracy needed, temperature <600°C, stable/slow-changing process. Thermocouple (Type K) for: temperatures >600°C, fast response needed, harsh environments, lower cost.
QA/QC Inspection Templates 📋
QA/QC templates coming soon for this code.