CEN/TC 79/SC 9 - Interpretation of CEN/TC 79 standards

This draft European Standard specifies general and specific procedures for determination of dolomite dust clogging.

This European Standard specifies the test procedure for measuring the carbon dioxide content in the inhaled air (dead space) of respiratory protective devices.

This European Standard specifies temperature, humidity, duration and method of application for climatic conditioning of respiratory protective devices.

This European Standard specifies the general procedure for measurement of breathing resistance of filters for respiratory protective devices and respiratory protective devices incorporating facepieces, except for diving for respiratory protective devices. The requirements and any special conditions for the apparatus, and of filter measurements are described in the relevant device standard.

This draft European Standard specifies the general procedure for determining: (i) the inward leakage of facepieces or (ii) inward leakage of respiratory protective devices (RPD), which is the total inward leakage excluding any filter penetration or (iii) total inward leakage of respiratory protective devices. Sample preparation, selection of test subjects, test procedure and the method of calculation of leakage are included. Two methods are described, one using an aerosol (sodium chloride aerosol) and one using a gas (sulfur hexafluoride).

This European Standard specifies methods for flame tests to be applied to respiratory protective devices.

This draft European Standard describes practical performance tests for respiratory protective devices, except for diving apparatus. The purpose of these tests is to check the device for imperfections that cannot be determined by tests described in other standards.

This European Standard specifies the procedure for testing particle filter penetration for respiratory protective devices.