IEC 63174:2021

Overview

IEC 63174:2021 is an international standard developed by the International Electrotechnical Commission (IEC) that specifies the methods for measuring the performance of electrically operated toothbrushes. It applies to both rechargeable and primary battery operated toothbrushes, designed for adults and children, to ensure consistent test methods across all types and models. This standard focuses on defining precise testing methodologies rather than setting performance limits.

Key Topics

The standard covers comprehensive methodologies to evaluate several critical performance parameters of electrically operated toothbrushes, including:

• Weight Measurement
  Assessment of the hand-held toothbrush part using precise scales, reported in grams (g).

• Vibration Frequency Measurement
  Testing with fully charged devices or an external DC supply for battery-operated types, using stroboscopic observation to measure the vibration frequency under no-load conditions.

• Rotational Speed Measurement
  Determination of the rotations per minute (rpm) for rotary and reciprocating toothbrush types, essential for assessing cleaning efficacy.

• Charging Time Assessment
  Measurement of hours required for fully charging rechargeable toothbrushes to understand user convenience and product efficiency.

• Operating Time After Charge or Battery Replacement
  Evaluation of working minutes post-charge or battery swap, supporting endurance analysis for daily use reliability.

• Electrical Endurance Testing
  Procedures to verify the electrical durability of towels during extended operational cycles.

• Mechanical Endurance Testing
  Includes drop tests and button operation endurance to confirm robustness and long-term physical reliability.

• Button Operation Endurance
  Assessment of the mechanical lifespan of user interface components to ensure usability over the product’s expected life.

• Standby Power Consumption Measurement
  Using methods aligned with IEC 62301 standards to evaluate power efficiency when the toothbrush is not in active use.

Environmental and Testing Conditions

• Testing is carried out under controlled temperature (20 °C ± 5 °C) and relative humidity (50%) to ensure reliability and reproducibility.
• Samples are prepared by cycling rechargeable devices through full charge and discharge twice before conducting performance tests.
• Tests follow operational conditions specified by manufacturers for real-use simulation.

Applications

IEC 63174:2021 serves as a crucial reference for:

• Manufacturers of electrically operated toothbrushes aiming to standardize performance testing and product development.
• Quality assurance laboratories conducting consistent, repeatable tests to verify compliance and durability.
• Product certification bodies assessing product safety and endurance.
• Consumer safety organizations ensuring that powered toothbrush products meet international quality and performance benchmarks.
• Retailers and consumers comparing products based on standardized performance data.

The standard helps in guaranteeing product reliability, consumer safety, and innovation through validated testing methods. It applies broadly to toothbrush categories such as:

• Rotary (rotating brush heads),
• Reciprocating (linear or rotational back-and-forth motion),
• Vibratory (continuous slight shaking),
• Rechargeable wireless and corded toothbrushes,
• Primary battery-operated models.

Related Standards

IEC 63174 references other important standards to complement its testing protocols:

• IEC 62301: Household Electrical Appliances – Measurement of Standby Power
  Provides standardized test methods for evaluating standby energy consumption, relevant for power efficiency measurement of electrically operated toothbrushes.

• ISO/IEC Directives
  Governs standard development and ensures international harmonization and rigorous documentation practices.

• IEC Electropedia and International Electrotechnical Vocabulary (IEV)
  Offer authoritative definitions of terms used within IEC 63174, ensuring clarity and consistency in terminology.

Summary

IEC 63174:2021 establishes internationally recognized test methods for evaluating the key performance metrics of electrically operated toothbrushes. By standardizing how parameters like vibration frequency, rotation speed, charging time, and endurance are measured, the standard supports manufacturers, laboratories, and regulators in delivering high-quality and reliable oral hygiene products worldwide. Its detailed approach to measurement ensures accurate and repeatable testing outcomes, promoting better product development, consumer trust, and global market harmonization.