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Homepage>BS Standards>71 CHEMICAL TECHNOLOGY>71.100 Products of the chemical industry>71.100.35 Chemicals for industrial and domestic disinfection purposes>PAS 2424:2014 Quantitative surface test for the evaluation of residual antimicrobial ( bactericidal and/or yeasticidal) efficacy of liquid chemical disinfectan ts on hard non-porous surfaces. Test method
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immediate downloadReleased: 2014-11-30
PAS 2424:2014 Quantitative surface test for the evaluation of residual antimicrobial ( bactericidal and/or yeasticidal) efficacy of liquid chemical disinfectan ts on hard non-porous surfaces. Test method

PAS 2424:2014

Quantitative surface test for the evaluation of residual antimicrobial ( bactericidal and/or yeasticidal) efficacy of liquid chemical disinfectan ts on hard non-porous surfaces. Test method

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Standard number:PAS 2424:2014
Pages:40
Released:2014-11-30
ISBN:978 0 580 84408 9
Status:Standard
DESCRIPTION

PAS 2424:2014


This standard PAS 2424:2014 Quantitative surface test for the evaluation of residual antimicrobial ( bactericidal and/or yeasticidal) efficacy of liquid chemical disinfectan ts on hard non-porous surfaces. Test method is classified in these ICS categories:
  • 71.100.35 Chemicals for industrial and domestic disinfection purposes

This PAS specifies a test method for residual bactericidal and/or yeasticidal activity of liquid, chemical disinfectant products that are applied to hard, non-porous surfaces which are likely to undergo abrasive action. The method described is intended to determine the activity of commercial formulations or active substances under the conditions in which they are used in accordance with BS EN 13697:2001 .

It has been designed as an extension of BS EN 13697:2001 and is intended to be used in conjunction with this recognized standard allowing BS EN 13697:2001 to assess the initial antimicrobial action of a product and PAS 2424 to assess the residual antimicrobial action. Therefore the results from this PAS will only be considered if the product tested also achieves a pass according to BS EN 13697:2001 (≥4 log reduction) under conditions required for the test product’s application of use (e.g. specified contact times, micro-organisms, organic load, etc.).

It is applicable to ready-to-use products or dilute-to-use products that form a homogeneous, physically stable preparation when diluted with hard water.

It is applicable to products that are used in areas that are covered in BS EN 13697:2001 . This includes but is not limited to hard surfaces in the food industry, institutional areas such as schools, hospitals and nursing homes, in the workplace and in the home/domestic environment.

It is not applicable to thickened or viscous products such as toilet bleaches or gels, wash-off products and products that are permanently bound to a surface.

This PAS is designed for laboratories that perform antimicrobial testing in order to test the residual antimicrobial properties of liquid, chemical disinfectant products.

NOTE 1

The sticky nature of thickened products and gels make the abrasion regime difficult to perform and therefore could lead to unreliable results.

NOTE 2

The testing of wash-off products would require a method with the inclusion of a rinsing step.

NOTE 3

Intrinsically antimicrobial surfaces are designed to remain active for longer than the 24 h covered in this test method.


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