ISO 10884-1995 PDF

Full title and description

Manually portable brush-cutters and grass-trimmers with internal combustion engine — Determination of sound power levels — Engineering method (Grade 2). This International Standard defines an engineering (grade 2) test method for measuring and declaring the A‑weighted sound power and related noise emission characteristics of hand‑held, engine‑driven brush‑cutters and grass‑trimmers used primarily in forestry and similar applications.

Abstract

Specifies procedures for the determination and verification of sound power levels of manually portable hand‑held brush‑cutters and grass‑trimmers with internal combustion engines, under standardized (artificial but representative) operating conditions so that results are comparable between machines and models. The method is an engineering (grade 2) noise test code intended for manufacturers' product control and type testing.

General information

• Status: Withdrawn / superseded.
• Publication date: September 1995 (Edition 1, 1995).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 17.140.20 (Noise emitted by machines and equipment); 65.060.80 (Forestry equipment).
• Edition / version: Edition 1 (1995).
• Number of pages: 8 pages (original published pamphlet).

Scope

The standard applies to manually portable hand‑held brush‑cutters and grass‑trimmers fitted with internal combustion engines and establishes standardized test conditions and procedures to determine the A‑weighted sound power level and the A‑weighted emission sound pressure level at the operator position. It is intended for use in manufacturers' product control, type testing and for comparative assessment of noise emissions between machines or models. The method is an engineering/grade‑2 procedure and does not cover other classes of machinery (e.g., large agricultural or stationary equipment).

Key topics and requirements

• Definition of the test sample, preparation and engine running conditions (load, throttle settings).
• Measurement of A‑weighted sound power and A‑weighted sound pressure at the operator position under standardized, repeatable operating conditions.
• Use of specified microphone positions, reference planes/surfaces and background noise correction.
• Procedures for calculation of sound power from measured sound pressure levels (engineering method / grade 2 accuracy).
• Requirements for declaration and verification of declared noise values by manufacturers and test houses.
• Consideration of measurement uncertainty appropriate to grade 2 methods and reporting formats for results.

Typical use and users

Manufacturers of brush‑cutters and grass‑trimmers for product development and declaration of noise emissions; accredited and commercial acoustical test laboratories performing type tests and verification; regulatory and conformity assessment bodies that require standardized test data for labeling or compliance; product designers and R&D teams working to reduce operator and environmental noise.

Related standards

This standard has been superseded and its subject matter integrated into later noise test codes for portable, hand‑held combustion‑engine powered forestry and gardening machines — notably ISO 22868 (first published 2005, revised 2011 and 2021). Other related ISO documents cover noise measurement principles and test codes for specific machine types; national adoptions and EN/ISO versions exist in several countries.

Keywords

brush‑cutter, grass‑trimmer, handheld, internal combustion engine, sound power, sound pressure, noise emission, engineering method, grade 2, ISO/TC 23/SC 17, acoustics, operator position.

FAQ

Q: What is this standard?

A: ISO 10884:1995 is an ISO engineering (grade 2) test method for determining the sound power and related noise emission characteristics of manually portable hand‑held brush‑cutters and grass‑trimmers with internal combustion engines.

Q: What does it cover?

A: It covers the standardized procedures, measurement positions, operating conditions and calculation methods required to obtain comparable A‑weighted sound power levels and operator position sound pressure levels for these handheld forestry machines.

Q: Who typically uses it?

A: Manufacturers, acoustical test laboratories, conformity assessment bodies and designers working on portable brush‑cutters and grass‑trimmers use this standard for product testing, declaration and comparative noise assessment.

Q: Is it current or superseded?

A: ISO 10884:1995 is withdrawn and has been superseded by the ISO 22868 series (first published 2005, with later revisions), which consolidates and expands noise test codes for portable hand‑held forestry and garden machinery. Users should refer to the latest ISO 22868 edition for current test requirements.

Q: Is it part of a series?

A: Yes — it belongs conceptually to the family of ISO noise test codes and forestry/gardening machinery standards developed by ISO/TC 23/SC 17; subsequent and related documents (ISO 22868 series) provide the current, broader noise test code for portable engine‑powered machines.

Q: What are the key keywords?

A: Brush‑cutter; grass‑trimmer; handheld; sound power level; A‑weighted; operator position; engineering method; grade 2; noise test code; ISO/TC 23/SC 17.