Overview
ISO 28927-8:2009/Amd 1:2015 - Hand-held portable power tools - Test methods for evaluation of vibration emission - Part 8: Saws, polishing and filing machines with reciprocating action and small saws with oscillating or rotating action (Amendment 1: Polishing machines, modified feed forces).
This part of ISO 28927 defines a laboratory, type‑test method for measuring hand‑transmitted vibration at the handles of reciprocating saws, polishing and filing machines, and small oscillating/rotating saws. It establishes standardized measurement procedures so manufacturers, test labs and regulators can compare tool models and declare vibration emission values consistently. Amendment 1 updates feed‑force conditions for polishing machines.
Key topics and technical requirements
- Scope and applicability: Applies to reciprocating files intended for surface finishing, saws for sheet‑metal, medical plaster or wood, and small circular saws for metal/composites. Excludes one‑hand blade files and large wood cutting circular saws.
- Type‑test method: Laboratory procedure to establish vibration magnitudes in the gripping areas under specified test conditions; intended to represent the upper‑quartile of typical use.
- Measurement axes and positions: Vibration measured in three axes and at both hand positions; transducers positioned near the hand (between thumb and index finger) to minimize operator disturbance.
- Instrumentation and calibration: Requirements for transducers, mounting, frequency weighting filters, integration time and calibration procedures.
- Test conditions and operating parameters: Specified machine operating modes (pneumatic, hydraulic, electrical), workpiece support, attached equipment and tooling, and operator handling to improve reproducibility.
- Data, reporting and uncertainty: Reported vibration values, declaration/verification rules, model test report (Annex A) and uncertainty determination (Annex B).
- Practical guidance: Notes on variability in real use and recommendation that emission values below 2.5 m/s² should not be used to estimate real working exposure.
Applications
- Compare and certify vibration emissions of hand‑held saws, polishers and files
- Product development and design optimization to reduce hand‑transmitted vibration
- Type testing for compliance, marketing declarations and technical data sheets
- Supporting workplace risk assessments when combined with ISO 5349 measurement guidance
Who uses this standard
- Tool manufacturers and R&D teams
- Test laboratories and conformity assessment bodies
- Occupational health and safety professionals
- Standards bodies and regulatory agencies
Related standards
- ISO 20643: general specifications for hand‑held machinery vibration testing
- ISO 5349: measurement and evaluation of human exposure to hand‑transmitted vibration
- ISO 2787: performance tests for pneumatic tools
Keywords: ISO 28927-8:2009/Amd 1:2015, hand‑held portable power tools, vibration emission, test methods, reciprocating saws, polishing machines, filing machines, vibration measurement, hand‑transmitted vibration.
Open preview (PDF)Hand-held portable power tools — Test methods for evaluation of vibration emission — Part 8: Saws, polishing and filing machines with reciprocating action and small saws with oscillating or rotating action — Amendment 1: Polishing machines, modified feed forces