ISO 11148-8:2011

Overview

ISO 11148-8:2011 - "Hand-held non-electric power tools - Safety requirements - Part 8: Sanders and polishers" sets out safety requirements and verification for hand-held, non-electric sanders and polishers. It covers tools with rotary, orbital and reciprocating movements powered by compressed air, hydraulic fluid or internal combustion engines (where relevant), intended to be used by a single operator and supported by the operator’s hands (with or without a suspension device). Covered tool types include belt sanders, orbital sanders, random orbital sanders, rotary sanders, straight-line (reciprocating) sanders and polishers. The standard excludes tools permanently mounted in fixtures and use in potentially explosive atmospheres.

Key topics and technical requirements

• Scope & terminology: Defines key terms for sanders, polishers, start‑and‑stop devices, rated speed, suspension devices and more.
• Safety requirements (Clause 4): Addresses mechanical safety (surfaces, edges, stability), run‑down time, hydraulic fluid containment, speed control and guards where applicable.
• Ergonomics, noise and vibration: Requirements to reduce operator fatigue and exposure; references test methods for vibration and noise measurement.
• Controls & start/stop devices: Guidance on throttle types (hold‑to‑run, lock‑on, lock‑off, positive on‑off) and prevention of unintentional starts.
• Materials & thermal safety: Consideration of hot/cold surfaces and hazardous substances generated or used during sanding/polishing.
• Verification & testing (Clause 5): Specifies verification topics such as noise, vibration, unintentional start, power tool construction and general test conditions.
• Information for use (Clause 6): Requirements for marking, warnings, instruction handbook content, operating and maintenance instructions, and data to accompany the tool.
• Annexes: Informative lists of significant hazards, examples of covered tools and abrasive products, and symbols for labels/signs.

The standard references related documents (e.g., ISO 12100 on risk assessment, ISO 28927 series for vibration testing, ISO 15744 for noise measurement) and takes precedence over general type‑A/B standards where conflicts occur.

Practical applications and users

ISO 11148-8:2011 is intended for:

• Manufacturers and product designers - to design and certify compliant sanders/polishers and select appropriate controls, guards and suspension systems.
• Test laboratories and conformity assessors - to verify noise, vibration, unintentional start and construction requirements.
• Safety engineers and procurement teams - to evaluate tool safety, ergonomics and user information for workplace selection.
• Maintenance, training and operations staff - to follow specified maintenance instructions, labeling and safe operating procedures.

Typical use cases include new product development, conformity assessment for market access, workplace risk assessments and updating instruction manuals to meet legal and industry safety expectations.

Related standards

• ISO 12100 - Safety of machinery - Risk assessment and reduction
• ISO 28927 (test methods for vibration)
• ISO 15744 (noise measurement for hand-held non-electric power tools)
• EN 12096 (vibration declaration and verification)

Keywords: ISO 11148-8:2011, sanders and polishers safety, hand-held non-electric power tools, pneumatic tools, vibration testing, noise measurement, start-and-stop device, ergonomic design.