ASTM E1965-98(2023) PDF

Overview

ASTM E1965-98(2023) is a standardized specification developed by ASTM International for infrared thermometers used in the intermittent determination of patient temperature. This standard provides comprehensive requirements for electronic instruments that measure patient temperature by detecting thermal radiation, primarily from the ear canal, but also from skin surfaces in noncontact mode. ASTM E1965 sets out criteria for laboratory and clinical accuracy, environmental performance, labeling, test procedures, and safety considerations. Adhering to this standard ensures that infrared thermometers used in medical environments are reliable, accurate, and suitable for both professional and consumer use.

Key Topics

• Types of Infrared Thermometers:

  • Ear Canal IR Thermometers: Intended for assessing internal body temperature by measuring thermal emission from the auditory canal.
  • Skin IR Thermometers: Designed for noncontact measurement of outer skin surface temperature.

• Measurement Requirements:

  • Covers temperature display ranges appropriate for clinical and skin temperature assessments.
  • Defines laboratory accuracy limits and calls for disclosure of clinical accuracy characteristics.

• Testing & Performance:

  • Specifies laboratory test procedures (using blackbody standards) to ensure instrument accuracy.
  • Requires resilience to environmental conditions such as temperature, humidity, and shock.
  • Mandates performance verification after exposure to electromagnetic interference and electrostatic discharge.

• Labeling & Documentation:

  • Requires clear identification, labeling of modes, and relevant body sites for temperature reference.
  • Instruction manuals must include technical specifications, usage guidelines, storage and cleaning instructions, and clinical accuracy disclosure.
  • Probe covers must be properly labeled with usage, compatibility, and cleaning information.

• Safety & Regulatory Compliance:

  • Requires manufacturers to indicate compliance with electrical safety (consult Underwriters Laboratory Standards) and electromagnetic compatibility (per CISPR 11 and IEC standards).
  • End-users are responsible for adhering to appropriate safety, health, and regulatory practices based on their local requirements.

Applications

ASTM E1965-98(2023) compliant infrared thermometers play a vital role in various healthcare and medical settings:

• Hospital and Clinical Use: For rapid and noninvasive intermittent monitoring of patient body temperature, particularly beneficial in pediatrics, emergency departments, and infectious disease control.
• Home and Consumer Health: Noncontact and ear thermometers for family or personal use, where ease of use, safety, and sanitation are important.
• Public Health Screening: Used in situations where rapid, noncontact temperature screening of groups is required (such as during pandemics or in public facilities).
• Educational and Research Settings: Provides reliable reference instrumentation for biomedical research involving body temperature monitoring.
• Professional and Regulatory Compliance: Ensures that organizations can select and deploy infrared thermometers with proven accuracy and safety for regulatory and accreditation purposes.

Related Standards

Implementing ASTM E1965-98(2023) often involves referencing other relevant international standards and guidelines, such as:

• ASTM E177: Practice for Use of the Terms Precision and Bias in ASTM Test Methods
• ASTM E344: Terminology Relating to Thermometry and Hydrometry
• ASTM E667: Specification for Mercury-in-Glass Clinical Thermometers (Withdrawn)
• ASTM E1112: Specification for Electronic Thermometer for Intermittent Determination of Patient Temperature
• IEC 601-1-2: Medical Electrical Equipment - Electromagnetic Compatibility - Requirements and Tests
• CISPR 11: Methods of Measurement of Electromagnetic Disturbance Characteristics of ISM Radiofrequency Equipment

These documents address electrical safety, electromagnetic compatibility, and provide technical terminology and accuracy requirements relevant to infrared thermometry.

Keywords: ASTM E1965, infrared thermometer, body temperature measurement, ear canal thermometer, skin IR thermometer, laboratory accuracy, clinical accuracy, medical devices, instrument calibration, patient monitoring, thermometry standard.

For full details on compliance, labeling, and instrument testing, refer to the official ASTM E1965-98(2023) documentation and consult manufacturer guidance.