Physical Address
304 North Cardinal St.
Dorchester Center, MA 02124
Assessing Febrile Temperature Screening with CAN/CSA-C22.2 No. 80601-2-59-10
A Comprehensive Technical Analysis of Medical Electrical Equipment Safety Standards for Screening Thermographs in Canada
The global demand for rapid, non-contact febrile temperature screening has elevated the importance of rigorous safety and performance standards for medical screening thermographs. In Canada, the primary standard governing these devices is CAN/CSA-C22.2 No. 80601-2-59-10 (2015). This standard, part of the broader C22.2 series under the Canadian Electrical Code Part II, represents the national adoption of the international IEC 80601-2-59 standard, incorporating specific Canadian deviations to address local regulatory and infrastructure requirements.
1. Scope and Applicability of CAN/CSA-C22.2 No. 80601-2-59-10
This standard specifies particular requirements for the BASIC SAFETY and ESSENTIAL PERFORMANCE of SCREENING THERMOGRAPHS. A screening thermograph is defined as a medical electrical device intended to measure the temperature of the human skin surface to identify individuals with an elevated body temperature (febrile condition). The standard applies to devices used in public spaces (airports, hospitals, workplaces) for initial fever screening. It explicitly covers the complete system, including the thermal imaging camera, blackbody calibration source, and the image analysis software responsible for temperature derivation and alarm generation.
Health Canada recognizes this standard as providing a presumption of conformity to the relevant safety and effectiveness requirements of the Canadian Medical Devices Regulations (SOR/98-282) for Class II medical devices intended for febrile screening.
2. Core Technical Requirements for Essential Performance
The core of this standard revolves around the concept of “Essential Performance,” defined as the performance necessary to achieve freedom from unacceptable risk. For a screening thermograph, this directly relates to its ability to accurately and reliably measure cutaneous temperature to distinguish between febrile and non-febrile individuals.
2.1 Accuracy and Precision
The standard mandates specific accuracy requirements for the temperature measurement system. The overall system (camera + blackbody) must have a specified maximum permissible error (MPE) over the clinical measurement range (typically 34 °C to 39 °C). The blackbody calibrator must have high emissivity and precise temperature stability.
2.2 Imaging Performance
Critical parameters include the Noise Equivalent Temperature Difference (NETD), which defines the thermal sensitivity of the camera, and the Field of View (FOV) and Instantaneous Field of View (IFOV), which determine the spatial resolution and optimal measurement distance.
2.3 Blackbody Calibration Source
An integral or external blackbody calibration source is a mandatory component. The standard defines its required temperature range, stability, uniformity, and emissivity to ensure traceable and accurate measurements.
| Performance Parameter | Typical Requirement (IEC 80601-2-59 / CSA Eq.) |
|---|---|
| Temperature Measurement Range | 34 °C to 39 °C (Cutaneous) |
| Maximum Permissible Error (System) | ±0.3 °C (at calibration reference) |
| Noise Equivalent Temp. Diff. (NETD) | ≤ 0.05 °C (at 30 °C) |
| Blackbody Emissivity | ≥ 0.97 |
| Blackbody Stability | ±0.05 °C |
| Minimum Measurement Distance | Typically 0.5 m to 3.0 m (defined by manufacturer) |
| Fever Alarm Threshold Accuracy | ±0.2 °C of setpoint |
Compliance with the accuracy requirements often depends on proper thermal anchoring of the blackbody source and minimizing reflected ambient radiation. Pay strict attention to the thermal environment specified in Clause 201 of the standard.
3. Implementation and Risk Management Integration
Manufacturers must integrate the requirements of this particular standard with the overarching risk management process defined in ISO 14971. The standard identifies specific hazards, such as erroneous measurement leading to false negatives (infected persons admitted) or false positives, overheating of the device, and environmental interference (sunlight, drafts, and reflective backgrounds) affecting measurement.
3.1 Software and Alarm Systems
If the system automatically identifies regions of interest (e.g., the inner canthus of the eye) and triggers an alarm, the software must be validated according to IEC 62304 or equivalent risk-based methods. The alarm system must comply with IEC 60601-1-8.
3.2 Labeling and Instructions for Use
Canadian deviations (often designated as national annexes in CSA standards) typically impose stricter requirements for bilingual labeling (English/French), power cord specifications (NEMA plugs), and specific warnings to comply with the Canadian Electrical Code Part I (CE Code).
Designers must carefully review the Canadian deviations attached to this standard. For instance, Canadian requirements for supply voltage tolerances (120 V / 60 Hz) and circuit protection may differ from the international parent version (IEC 80601-2-59).
4. Compliance Notes and Certification Pathways
Certification to CAN/CSA-C22.2 No. 80601-2-59-10 is typically handled through an SCC-Accredited Certification Organization (CO), such as CSA Group, UL, or Intertek. The certification process involves three main pillars:
1. Design Review (Type Examination): Evaluation of the technical file, including risk management reports, essential performance test results, and labeling.
2. Witnessed or Supervised Testing: Testing performed in an ISO/IEC 17025 accredited laboratory demonstrating compliance with the essential performance and safety clauses.
3. Factory Inspection (QMS): Assessment of the manufacturing facility to ensure consistency of the certified product with the type-examined design (typically based on ISO 13485).
Using a screening thermograph for clinical diagnostic purposes (e.g., confirming a specific fever temperature in a patient) requires a higher level of accuracy and a different intended use. The screening thermograph standard is specifically for screening applications and does not replace clinical thermometers defined under other standards.
Frequently Asked Questions
Q: What is the regulatory status of CAN/CSA-C22.2 No. 80601-2-59-10 in Canada?
A: It is recognized by Health Canada as providing a presumption of conformity to the safety and effectiveness requirements for Class II medical devices intended for febrile temperature screening. It is the primary reference standard for selling these devices in Canada.
A: It is recognized by Health Canada as providing a presumption of conformity to the safety and effectiveness requirements for Class II medical devices intended for febrile temperature screening. It is the primary reference standard for selling these devices in Canada.
Q: How does this standard differ from the parent IEC document (IEC 80601-2-59)?
A: The CSA version includes Canadian national deviations. These typically modify requirements for supply voltage (120 V / 60 Hz), cord connection (NEMA 5-15P plugs), bilingual marking language (English/French), and references to the Canadian Electrical Code Part I. The technical performance requirements are largely harmonized with the international version.
A: The CSA version includes Canadian national deviations. These typically modify requirements for supply voltage (120 V / 60 Hz), cord connection (NEMA 5-15P plugs), bilingual marking language (English/French), and references to the Canadian Electrical Code Part I. The technical performance requirements are largely harmonized with the international version.
Q: What is the required system accuracy for a screening thermograph under this standard?
A: The standard requires a maximum permissible error (MPE) typically around ±0.3 °C when measuring a calibrated blackbody source. The overall system must demonstrate sufficient accuracy to reliably detect a predefined febrile threshold (e.g., 37.5 °C) within a controlled environment.
A: The standard requires a maximum permissible error (MPE) typically around ±0.3 °C when measuring a calibrated blackbody source. The overall system must demonstrate sufficient accuracy to reliably detect a predefined febrile threshold (e.g., 37.5 °C) within a controlled environment.
Q: Can a device compliant with this standard be used outside of Canada?
A: Generally yes, as the core requirements are based on the international IEC 80601-2-59 standard. However, local adoptions may have specific national deviations (e.g., in the EU, Japan, or Australia). Manufacturers should verify the specific national adoption of IEC 80601-2-59 in their target market to ensure full compliance.
A: Generally yes, as the core requirements are based on the international IEC 80601-2-59 standard. However, local adoptions may have specific national deviations (e.g., in the EU, Japan, or Australia). Manufacturers should verify the specific national adoption of IEC 80601-2-59 in their target market to ensure full compliance.
© 2026. All rights reserved.