BS EN 529-2005 pdf download.Respiratory protective devices Recommendations for selection, use, care and maintenance Guidance document.
This BS EN 529 provides guidance on the best practice for establishing and implementing a suitable respiratory protective device programme. It is published to provide a Europe-wide baseline for the selection, use, care and maintenance of respiratory protective devices. It provides guidelines for preparing national guidance in this area. The guidance contained in this European Standard is not intended to be exhaustive, but highlights important aspects to which attention should be given. The recommendations in this European Standard will help to comply with national legislation on this subject where it exists, or with European legislation.
Respiratory protective devices used exclusively in diving and at increased or reduced atmospheric pressures are not covered by this guidance.
2 Normative references
The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 132:1998, Respwatory protective devices — Definitions of terms and pictograms EN 134:1998, Respiratory protective devices — Nomenclature of components
3 Terms and definitions
For the purposes of this European Standard, the terms and definitions given in EN 132:1998 and EN 134:1998 and the following apply.
atmosphere immediately dangerous to life or health
atmosphere in which the concentrations of hazardous substances, including asphyxiants, or the oxygen levels present create one or more of the following conditions:
— immediate threat to life;
— could cause delayed threat to life;
— would cause immediate acute health effects;
— would prevent the respiratory protective device wearer from an unaided escape to safety in case of the device malfunctioning or failing to operate correctly
3.2
assigned protection factor (APF)
level of respiratory protection that can realistically be expected to be achieved in the workplace by 95 % of adequately trained and supervised wearers using a property functioning and correctly fitted respiratory protective device and is based on the 5 percentile of the Workplace Protection Factor (WPF) data
3.3
breathing zone
space outside the facepiece extending 0,3 m in radius in front of the respiratory protective device wearers face and centred on the mid-poini of a line joining the ears
competent person
person with suitable and sufficient experience and with practical and theoretical knowledge of the elements of respiratory protective device programme for which that person is responsible
3.5
emergency breathing facility
facility, as specified by the respiratory protective device manufacturer, coming into operation when the normally operating respiratory protective device is not functioning. The facility provides an adequate level of protection for a period to enable the device wearer to exit the work area, unassisted, to a place of safety
3.6
nominal protection factor
number derived from the maximum percentage of total inward leakage permitted in relevant European Standards for a given class of respiratory protective device. The relationship between nominal protection factor and total inward leakage can be expressed as follows:
Details of different types of devices are given in Annex A.
4.2 Main components
4.2.1 General
A respiratory protective device consists of two main components, a facepiece and filter(s) or a facepiece and a means of supplying uncontaminated breathable air or gas.
4.2.2 Facepieces
The facepiece directs the uncontaminated breathable air or gas to the wearers nose and mouth area. Filtering devices and breathing apparatus are available with a range of different facepieces but there are some important limitations.
— Tight4itting lacepieces (filtering facepieces, quarter masks, half masks and lull face masks) rely heavily on a good seal between the mask and the wearer’s face. Full face masks, half masks and quarter masks may be used for both types of devices as described in 4.1.
— Loose-fitting facepieces (e.g. hoods, helmets, visors, blouses, suits) rely on enough air being provided to prevent contaminants leaking into the facepiece as the wearer breathes and moves about. They are only used on powered filteflng devices or with suitable breathing apparatus. In other words, loose-fitting facepieces are not suitable for devices which rely on the breathing action of the wearer to draw air. These include unpowered filtering devices and some breathing apparatus.
— Mouthpieces are used with certain devices. They make any form of verbal communication impossible. They are used in conjunction with a nose dip,
4.2.3 Filters
Filtering devices should have the correct type of filter(s) matched to the substance(s) from which the wearer needs protection. The filters can only protect against limited concentration ranges of contaminants as specified by the manufacturers. The filter can be for protection against particles (particle filters), gases/vapours (gas filters) and for protection against partides and gases/vapours (combined filters). Further details are given in A.2.
4.2.4 Breathable air or gas supply source for breathing apparatus
A source (e.g. chemical oxygen generator or compressed air line) or a vessel (e.g. a gas cylinder) which is capable of supplying uncontaminated breathable air or gas to a breathing apparatus. The quality of the compressed air for breathing apparatus should be in accordance with EN 12021. Further details are given in
A.4.5.BS EN 529-2005 pdf download.