BS 8580-2-2022 pdf free download

03-01-2022 comment

BS 8580-2-2022 pdf free download.Water quality Part 2: Risk assessments for Pseudomonas aeruginosa and other waterborne pathogens — Code of practice
1 Scope This British Standard gives recommendations and guidance on how to carry out risk assessments for Pseudomonas aeruginosa (PA) and other waterborne pathogens whose natural habitat is within constructed water systems and the aqueous environment (autochthonous) rather than those being present as a result of a contamination event. It includes those pathogens that can colonize and grow within water systems and the associated environment. It does not cover risk assessments for Legionella spp.; these are covered in BS 8580-1, or risk assessments for enteric microorganisms derived from human or animal faecal contamination or sewage ingress.
This British Standard is especially applicable to all types of healthcare provision, including hospitals, care, nursing and residential homes, together with other settings such as educational, travel, leisure, commercial, industrial, where there are additional systems or equipment which could pose a risk from waterborne pathogens. It is also applicable to spa baths, hot tubs, pools, and other equipment, including the use of large inflatable equipment in swimming pools. Premises where this standard can be used include the educational, travel, industrial, leisure and beauty sector, including health spas, nail bars and tattoo parlours, and other premises where water systems and associated equipment can pose a risk of infection from waterborne pathogens other than Legionella and those associated with gastrointestinal infections.
This British Standard covers risk assessment of distributed water systems and associated equipment, system components and fittings as well as above ground drainage systems. It takes account of all relevant environmental and clinical factors, aspects of human behaviour leading to contamination events, e.g. poor cleaning and storage techniques and all possible modes of transmission. It also takes into account risk factors within the associated environment, such as the potential for transmission from personnel, splashing and the contamination of outlets, sink traps and drains leading to conditions which can encourage the colonization and growth of waterborne pathogens and transfer of antibiotic resistance.
This British Standard also covers PA risk assessment reviews and reassessments where a previous assessment has been undertaken and risk factors identified.
For all sites, it is also of relevance to design engineers and architects, providers of fittings, outlets and components for water systems, manufacturers/wholesalers/contractors, installers and commissioners, risk assessors, regulatory bodies, building services engineers, water treatment consultants, travel, leisure and other relevant buildings owners and operators and those responsible for the safe management of water systems, especially within the leisure centres, schools, swimming pool operators, passenger vessel operators, etc.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes provisions of this document 1) . For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
BS 8580-1, Water quality – Risk assessments for Legionella control – Code of practice
BS 8680, Water quality – Water safety plans – Code of practice
3 Terms and definitions
For the purposes of this part of BS 8580, the following terms and definitions apply.
3.1 aerosol
suspension in a gaseous medium of solid particles, liquid particles or solid and liquid particles having negligible falling velocity
NOTE An infectious aerosol is not visible to the human eye, can remain in suspension for a long period of time and transmission is by inhalation.
3.2 aspiration
liquid accidentally passing into the lungs when swallowing
NOTE This is commonly referred to as water “going down the wrong way”.
3.3 asset register
list of all items relevant to the risk of waterborne pathogens
NOTE 1 Asset register includes the pertinent information to allow waterborne pathogens, including PA, to be effectively used in the written scheme of control and in the risk assessment.
NOTE 2 Ideally, this will be made available to the risk assessor by the duty holder. This includes the physical components of the system and might also include other standalone items that could present a risk of waterborne infection. It also includes the schematic diagram, scheme of control and risk assessment.
3.4 augmented care
particular service designated as one where water quality needs to be of a higher microbiological standard than that provided by the supplier
NOTE Most care that is designated as augmented will be that where medical/nursing procedures render the patients susceptible to invasive disease from environmental and opportunistic pathogens such as PA and other alert organisms (see HTM 04-01 [1] for specific examples of hospital areas that are likely to be designated as augmented care).BS 8580-2 pdf download.

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