ISO 28927-5:2009/Amd 1:2015

Overview

ISO 28927-5:2009/Amd 1:2015 is an amendment to the international standard that specifies test methods for evaluating vibration emissions from hand-held portable power tools, specifically drills and impact drills. This amendment introduces detailed criteria for feed force during vibration testing, enhancing the accuracy and consistency of vibration emission measurements. Developed by ISO/TC 118, Subcommittee SC 3, this standard supports safer and more ergonomic tool design by providing reliable methods for assessing vibration exposure.

Key Topics

• Vibration Emission Testing: Defines procedures for measuring the vibration generated by drills and impact drills during operation, focusing on real-world handling conditions.
• Feed Force Specification: Introduces targeted feed force values based on drill type (pistol grip, straight, angle) and corresponding drill diameter to ensure consistent testing conditions.
• Rotational Speed Categories: Specifies feed force variations tailored to drill speeds, segmented into four speed ranges (below 1,000 rpm, 1,000–3,099 rpm, 3,100–5,499 rpm, and 5,500–10,000 rpm).
• Test Method Standardization: Enhances comparability of test results by harmonizing the force applied during vibration emission measurements, which is critical for safety evaluations and user risk assessment.
• Tool Classification: Differentiates between drills with and without impact action, focusing primarily on conventional drills to assess vibration accurately.

Applications

• Manufacturers of Portable Power Tools: Utilize the standardized test methods to design drills and impact drills that comply with health and safety regulations related to hand-arm vibration exposure.
• Occupational Safety Assessors: Rely on this standard to evaluate the vibration risks of power tools used in construction, manufacturing, and maintenance, helping to prevent occupational vibration syndrome.
• Certification Bodies and Test Laboratories: Implement the amendment to produce certified test results that meet international requirements, ensuring consistent tool performance claims.
• Ergonomic Tool Development: Supports tool designers in optimizing the feed force and operational ergonomics to reduce operator fatigue and vibration-related health risks.
• Regulatory Compliance: Assists companies in meeting international workplace safety standards and regulations concerning vibration exposure limits.

Related Standards

• ISO 28927 Series: A collection of standards that comprehensively define test methods for vibration emission evaluation across various types of hand-held power tools beyond drills, such as grinders and saws.
• ISO 5349: Pertains to measurement and evaluation of human exposure to hand-transmitted vibration, complementing ISO 28927-5 by focusing on health risk assessment.
• ISO/IEC Directives, Part 2: Governs the editorial and technical development of ISO standards, ensuring a harmonized approach to standardization.
• IEC Technical Standards: Often aligned with ISO standards, IEC documents covering electrical safety and tool performance form a parallel framework for power tool testing.

ISO 28927-5:2009/Amd 1:2015 is essential for ensuring consistent, reliable assessment of vibration exposure from drills and impact drills, fostering safer tool use and innovation in ergonomics. This amendment’s focus on feed force standardization significantly improves the quality of vibration testing results, benefiting manufacturers, safety professionals, and end-users worldwide.