Bulgarian Institute for Standardization
Standards – always a step ahead
Phone: +359 2 8174 523, +359 2 8174 504
E-mail: info@bds-bg.org
1797 Sofia, 13 "Lachezar Stanchev" Str., "Izgrev" Complex
ID number: 175079183, VAT number: BG175079183
Main menu

ISO 29042-9:2011

Safety of machinery — Evaluation of the emission of airborne hazardous substances — Part 9: Decontamination index

Jan 6, 2011

General information

90.93     Sep 3, 2021


ISO/TC 199

International Standard





Language in which you want to receive the document


ISO 29042-9:2011 specifies a method for the measurement of the decontamination index of pollutant control systems, e. g. capture devices including local exhaust ventilation, water spray systems and, when appropriate, separation equipment installed on a machine. This method uses the real pollutant (see ISO 29042-1:2008, 4.2) and can be operated in room or field environments.
Measurement of the decontamination index of a pollutant control system can serve for the: a) evaluation of the performance of a pollutant control system of a machine; b) evaluation of the improvement of a pollutant control system; c) comparison of pollutant control systems for machines of similar design; d) ranking of pollutant control systems according to their decontamination efficiency; e) determination of the air flow rate in the case of an exhaust system to achieve a given level; f) determination of the state of the art of pollutant control systems for machines with respect to the decontamination efficiency.

Life cycle


ISO 29042-9:2011
90.93 Standard confirmed
Sep 3, 2021