Respiratory protective devices for use against chemical, biological, radiological and nuclear (CBRN) agents - Air-purifying devices incorporating a hood for escape. Specification1 Scope This British Standard specifies the requirements for air purifying devices incorporating a hood intended to be used only during escape by emergency responders (e. g. re, ambulance, police) and adult civilians from areas contaminated by chemical, biological, radiological and nuclear (CBRN) agents. This British Standard is applicable to Type ES CBRN devices. Type ES CBRN devices provide resistance to liquid and gaseous chemical agent permeation

as a basis for their improvement

hybrid insulators intended for use as suspension/tension line insulators

Note2: Pumps dealing with agri-food stuff which are not indicated in BS EN 13951

ISO 7405 on evaluation of biocompatibility of medical devices used in dentistry is useful for:

assess the energy performance of each room of a building

PD CLC/TS 50625-3-4 is intended to be used in conjunction with the WEEE Treatment Standard for temperature exchange equipment

by determination of the oxygen demand in a closed respirometer

BS EN 15165 covers the following auxiliary devices and interchangeable equipment:

Internal tearing resistance

design and requirements

A huge variety of natural stones with different characteristics can be used for external paving

data recording conditioning of test specimens