ISO 28927-11-2011 PDF

Full title and description

Hand-held portable power tools — Test methods for evaluation of vibration emission — Part 11: Stone hammers. This part of ISO 28927 specifies a laboratory type-test method for measuring hand-transmitted vibration at the handles of stone hammers and engraving pens intended for use by stone masons, allowing comparison of vibration emission between models under defined laboratory conditions.

Abstract

ISO 28927-11:2011 defines instrumentation, test conditions, measurement procedures, validity criteria and reporting requirements for determining hand-transmitted vibration of hand-held stone hammers. It is a type-test procedure intended to establish declared vibration magnitudes for user information and for comparison between models; it excludes demolition hammers and chipping hammers primarily intended for metal or construction work.

General information

• Status: Published / Current (EN ISO adoption available).
• Publication date: 2011 (valid from 03 March 2011 in several national adoptions).
• Publisher: International Organization for Standardization (ISO) — often published also as EN ISO by CEN members.
• ICS / categories: 13.160 (Vibration and shock with respect to human beings); 25.140.10 (Pneumatic tools).
• Edition / version: Edition 1 — ISO 28927-11:2011.
• Number of pages: 18 pages (typical published PDF length).

Details compiled from ISO and national adoption records.

Scope

This part of ISO 28927 applies to engraving pens and stone hammers intended for use by stone masons and similar tasks. It specifies a laboratory measurement method to determine hand-transmitted vibration at the gripping areas of such tools when operated under specified conditions. It is intended for type-testing and model comparison; it does not apply to demolition hammers or to chipping hammers primarily intended for work on metal or for construction applications.

Key topics and requirements

• Definition of the family of machines covered (stone hammers, engraving pens) and exclusions.
• Characterization of vibration (hand-transmitted vibration) and relevant metrics (frequency weighting, acceleration values).
• Instrumentation requirements (accelerometer placement, data acquisition, calibration and mounting).
• Detailed testing and operating conditions (test rig, no‑load / specified load conditions, specified tool bit and workpiece interfaces where relevant).
• Measurement procedure, repeatability and validity criteria for test runs.
• Test report content and model test report template (including declared vibration values to be stated in the instruction manual).
• Determination and reporting of measurement uncertainty (normative annex on uncertainty).

Content and clause structure follow the standard’s test-method layout and annexes.

Typical use and users

Used by tool manufacturers and product designers to determine and declare vibration emission levels; by independent test laboratories for type testing and certification; by compliance engineers and purchasers assessing tool suitability and health/safety implications; and by standards bodies referencing vibration data for regulatory or conformity purposes (e.g., machine manuals and exposure assessment).

Related standards

ISO 28927 is a multi‑part series covering test methods for various hand‑held power tools (examples: Part 1 — angle and vertical grinders; Part 5 — drills and impact drills; Part 10 — percussive drills, hammers and breakers; other parts cover scalers, die grinders, fastener driving tools, etc.). ISO 28927-11:2011 replaces or updates earlier national/ISO documents in this area (for example ISO 8662-14:1996 was replaced). The series is managed under ISO/TC 118 (power tools) and related ICS classifications.

Keywords

hand‑held portable power tools; stone hammers; engraving pens; hand‑transmitted vibration; vibration emission; test method; type‑test; ISO 28927.

FAQ

Q: What is this standard?

A: ISO 28927-11:2011 is a standardized laboratory test method for measuring hand‑transmitted vibration at the handles of stone hammers and similar engraving tools, used to establish declared vibration values and compare models.

Q: What does it cover?

A: It covers instrumentation, test conditions, measurement procedures, validity criteria, uncertainty determination and reporting (including a model test report) for stone hammers and engraving pens. It excludes demolition hammers and chipping hammers primarily intended for metal or heavy construction work.

Q: Who typically uses it?

A: Manufacturers, independent test laboratories, compliance engineers, purchasers and certification bodies use the standard to evaluate and declare vibration emission for product information, health & safety assessment and regulatory compliance.

Q: Is it current or superseded?

A: The published edition is ISO 28927-11:2011 (first edition, 2011). It has been adopted in EN/ national catalogs and has been subject to confirmation in later ISO/national records (for example confirmation entries in catalogues in 2022); users should check the current status in their national standards body or ISO Catalogue for the latest confirmation or withdrawal information.

Q: Is it part of a series?

A: Yes — ISO 28927 is a multi‑part series of test methods for evaluation of vibration emission from hand‑held portable power tools; Part 11 specifically covers stone hammers. Other parts address grinders, drills, scalers, die grinders, fastener driving tools and similar tool families.

Q: What are the key keywords?

A: Hand‑transmitted vibration, vibration emission, stone hammers, engraving pens, test method, type‑test, ISO 28927.