BS 5306-8:2012 pdf free

BS 5306-8:2012 pdf free.Fire extinguishing installations and equipment on premises Part 8: Selection and positioning of portable fire extinguishers一Code of practice.
3 Terms and definitions
For the purposes of this part of BS 5306. the following terms and definitions apply.
3.1 charge
mass or volume of extinguishing medium contained in an extinguisher NOTE The charge of a water-based medium is expressed as a volume in litres. Char ges for other media are expressed as a mass in kilograms.
3.2 clean agent
electrically non-conducting, volatile or gaseous, fire extinguishing medium that does not leave a residue upon evaporation
3.3 competent person
person with enough training, experience or knowledge and other qualities to be able to assist in the implementation of preventative and protective measures
NOTE The competent person is often the competent person undertaking the maintenance of extinguishers as defined in 85 5306-3.
3.4 extinguishing medium
substance contained in an extinguisher which causes extinction of a fire
3.5 fire extinguisher
appliance containing an extinguishing medium which can be expelled by the action of internal pressure and be directed on to a fire
NOTE This pressure can be stored in the body or produced by the release of an auxiliary gas.
3.6 fire hazard
source or situation with potential to result in a fire
NOTE Examples of fire hazards include ignition sources and accumulation of waste that could be subject to ignition. Guidance is given in MS 79.
3.7 fire risk
combination of likelihood and consequence(s) of fire
NOTE In the context of this standard, the relevant consequences are those involving injury to people, as opposed to damage to property. Guidance is given in
PAS 79.
3.8 fire risk assessment
overall process of identifying fire hazards and evaluating the risks to life and property arising from them, taking account of existing risk controls (or, in the case of a new activity, proposed risk controls)
4 Provision of extinguishers — General recommendations
4.1 Importance of early planning
Although portable extinguishers are not permanent fittings in a structure, they form part of the whole concept of fire protection, and in new buildings their provision should be taken into account at the design stage. When the use of the building has been decided, or, for existing structures, if the use or layout is to be changed, a fire risk assessment should be carried out. The findings of this fire risk assessment should be used to help determine requirements for increased levels of extinguisher cover above the scale of provision of portable extinguishers as recommended in Clause 8.
NOTE Attention is drawn to the legal obligation to ensure that preventative and protective measures are carried out by a competent person.
4.2 The environment
The impact of the discharge of the extinguishing medium on the environment should be taken into account.
Extinguishing medium can cause collateral damage to many things such as, but not restricted to, food, machinery, building fabric, fixtures, fittings, artefacts and sensitive equipment. Expert advice on the impact of the discharge from a fire extinguisher on the local environment should be sought from a competent person.
Advice on the impact of extinguishers (and their content) on the wider environment should be sought from extinguisher manufacturers and distributors.
4.3 Erection, refurbishment and demolition of buildings
The results of a fire risk assessment should identify the types and numbers of extinguishers in the following circumstances:
a) during the erection of a building, particularly where material or equipment is stored pending use or installation;
b) when a building is in process of demolition,
c) where any part of a building is brought into occupation prior to completion.
4.4 Unoccupied buildings
The responsible person or competent person should assess the provision of extinguishers where buildings, or parts thereof, are unoccupied.BS 5306-8 pdf download.