Electrical apparatus for the detection and measurement of toxic and combustible gases in car parks and tunnels - General performance requirements and test methods for the detection and measurement of carbon monoxide and nitrogen oxides1 Scope This European Standard applies to apparatus for the detection and or the measurement of carbon monoxide (CO), nitrogen monoxide (NO) and nitrogen dioxide (NO2) intended to control a ventilation system and or to give an indication, alarm or any other signal to warn of a toxic hazard. These three gases are generically called target gases for the purpose of this European Standard. National and local regulations might not require detection of NO

surface preparation of the work piece before spraying

The present method provides data to confirm the constancy of relative intensities with instrument usage

8 Flexible Viewing Areas

The SIRF serialization for the cloud is being experimented with OpenStack Swift object storage

surface protection systems need to be highly resistant to chemical elements

including standard range and custom made rolled products and hollow sections manufactured by welding

The provisions stated in this standard are intended for the designer

A noise test code is included in annex  to assist manufacturers to measure noise level for the purpose of the noise emission declaration

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4668) forging stock that ensure safe operability

and the central nervous system

the material may