BS 5306-3:2009 pdf download
BS 5306-3:2009 pdf download.Fire extinguishing installations and equipment on premises -Part 3: Commissioning and maintenance of portable fire extinguishers – Code of practice.
Non-exhaustive lists of examples of the conditions that might affect the function or safety of an extinguisher are given in 9.2.2 and 9.2.3. The following conditions do not affect the function or safety of an extinguisher and will not therefore require the extinguisher to be condemned:
a) staining ordiscolorationofliningsordiptubes;
b) external blemishes or slight scratches;
c) light rusting of parts which is not likely to impair function or safety;
d) the presence of corrosion products from any metal lining (typically white salts of zinc, or tin and lead).
9.2.2 Conditions indicating that an extinguisher is unsafe for use
Potentially the most serious hazard presented by a defective extinguisher is the sudden uncontrolled release of pressure or ejection of parts. This could be caused by any of the following conditions:
a) corrosion, wear or damage to threads of any pressure retaining part;
b) corrosion of welds;
c) extensive general corrosion or severe pitting;
d) dents or gouges in the body;
e) fire damage to the body or body fittings;
f) any split in a plastics lining;
g) lifting or detachment of a plastics lining from the body;
h) corrosion of the metal body under a plastics lining;
i) corrosion of the metal body under a zinc or tin/lead lining. Additional reasons for condemning an extinguisher include the following (unless rectified by the replacement of the appropriate components):
1) overpainting or application of any other coating, film or colouring to any plastics component that could be subject to pressure;
2) UV degradation of plastics components;
3) illegible marking or operating instructions;
4) instructions not in English.
9.2.3 Extinguishers for which this standard provides no maintenance schedules
Maintenance schedules for certain extinguishers (because of their type, construction, method of operation, or condition) are not provided in this part of BS 5306. Examples of such extinguishers are as follows:
• soda acid extinguishers;
• extinguishers with a riveted body shell;
• extinguishers with a plastics body shell;
• extinguishers that require inversion to operate;
• non-refillable extinguishers that have reached their expiry date;
• extinguishers manufactured after 2002 which do not carry a CE mark. This excludes refurbished extinguishers (see Note).
NOTE Refurbished extinguishers cannot carry the CE mark and
cannot be condemned for not carrying it.
Any such extinguisher should be marked “CONDEMNED” together with the reason for this assessment, and the competent person should advise the responsible person, in the written report (see 9.4.1), that the extinguisher has been condemned and that it should be replaced by an extinguisher for which this standard provides a maintenance schedule.
9.3 Extinguishers which are not maintained
When undertaking maintenance in a particular location, the competent person should ensure that they have available the number and types of spare parts that might be required to service the extinguishers involved (see Clause 8).
If the required spare parts are not available for any of these extinguishers, the maintenance should be interrupted and the extinguisher made safe, removed from its designated place and marked “NOT MAINTAINED”, together with the reason for this assessment; and the competent person should advise the responsible person, in the written report (see 9.4.1), that the maintenance has been interrupted.
The competent person should return to the site with the spare parts and complete the maintenance, or, if the parts prove to be unobtainable, should mark the extinguisher “CONDEMNED” together with the reason for this assessment, and should advise the responsible person, in the written report (see 9.4.1), that the extinguisher has been condemned and that it should be replaced by an extinguisher for which this standard provides a maintenance schedule.
9.4 Further actions
9.4.1 Documentation
NOTE The in formation recommended in 9.4.1.1 and 9.4.1.2 may be amalgamated to form one document.
9.4.1.1 Provision of a written report
The competent person should advise the responsible person in a written report:
a) of any extinguishers that have been condemned, not maintained and/or are missing;
b) of any permanent replacement extinguishers required to replace.
