ISO 29042-8:2011

INTERNATIONAL ISO
STANDARD 29042-8
First edition
2011-01-15
Safety of machinery — Evaluation of the
emission of airborne hazardous
substances —
Part 8:
Room method for the measurement of the
pollutant concentration parameter
Sécurité des machines — Évaluation de l'émission de substances
dangereuses véhiculées par l'air —
Partie 8: Méthode en salle d'essai pour le mesurage du paramètre de
concentration en polluant
Reference number
©
ISO 2011
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ii © ISO 2011 – All rights reserved

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 29042-8 was prepared by Technical Committee ISO/TC 199, Safety of machinery.
ISO 29042 consists of the following parts, under the general title Safety of machinery — Evaluation of the
emission of airborne hazardous substances:
⎯ Part 1: Selection of test methods
⎯ Part 2: Tracer gas method for the measurement of the emission rate of a given pollutant
⎯ Part 3: Test bench method for the measurement of the emission rate of a given pollutant
⎯ Part 4: Tracer method for the measurement of the capture efficiency of an exhaust system
⎯ Part 5: Test bench method for the measurement of the separation efficiency by mass of air cleaning
systems with unducted outlet
⎯ Part 6: Test bench method for the measurement of the separation efficiency by mass of air cleaning
systems with ducted outlet
⎯ Part 7: Test bench method for the measurement of the pollutant concentration parameter
⎯ Part 8: Room method for the measurement of the pollutant concentration parameter
⎯ Part 9: Decontamination index
Introduction
The structure of safety standards in the field of machinery is as follows:
a) Type-A standards (basic safety standards) giving basic concepts, principles for design, and general
aspects that can be applied to all machinery;
b) Type-B standards (generic safety standards) dealing with one safety aspect or one type of safeguard that
can be used across a wide range of machinery:
⎯ type-B1 standards on particular safety aspects (e.g. safety distances, surface temperature, noise);
⎯ type-B2 standards on safeguards (e.g. two-hand controls, interlocking devices, pressure-sensitive
devices, guards);
c) Type-C standards (machine safety standards) dealing with detailed safety requirements for a particular
machine or group of machines.
This document is a type-B standard as stated in ISO 12100.
The requirements of this document can be supplemented or modified by a type-C standard.
For machines which are covered by the scope of a type-C standard and which have been designed and built
according to the requirements of that standard, the requirements of that type-C standard take precedence.
ISO/TC 199 has a mandate in this area to produce type-A and type-B standards, which will allow verification
of conformity with the essential safety requirements.
ISO 29042-8 is based on EN 1093-9:1998, amended by Amendment 1:2008, published by the European
Committee for Standardization (CEN).

iv © ISO 2011 – All rights reserved

INTERNATIONAL STANDARD ISO 29042-8:2011(E)

Safety of machinery — Evaluation of the emission of airborne
hazardous substances —
Part 8:
Room method for the measurement of the pollutant
concentration parameter
1 Scope
This part of ISO 29042 specifies a room method for the measurement of the pollutant concentration parameter
of a given airborne hazardous substance from machines, located in a test room and operating the machines
under defined conditions. This method is applicable only to machines with a local exhaust ventilation with an
air flow rate W500 m /h and machines without recirculated air.
Measuremen
...