ISO 20645:2004 纺织品 抗菌活性度的测定 琼脂扩散盘试验

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ISO 20645:2004 Textile fabrics -- Determination of antibacterial activity -- Agar diffusion plate test
 
ISO 20645:2004 specifies a method for the determination of the effect of antibacterial treatments applied to woven, knitted and other flat textiles. ISO 20645:2004 is applicable to testing hygienic finishes of hydrophilic, air-permeable materials or antibacterial products incorporated in the fibre. A minimum diffusion of the antibacterial treatment into the test agar is necessary with this procedure. ISO 20645:2004 is applicable to other materials, provided that it is adapted accordingly.
ISO 20645:2004 is not suitable for testing textiles treated with antibacterial treatments that react with the agar.
 
General information 
Status :  Published
Publication date : 2004-12
Edition : 1
Number of pages : 9
Technical Committee : ISO/TC 38 Textiles
ICS : 59.080.01 Textiles in general
 
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 20645 was prepared by the European Committee for Standardization (CEN) in collaboration with Technical Committee ISO/TC 38, Textiles, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
Throughout the text of this document, read “...this European Standard...” to mean “...this International Standard...”.
Foreword
This document (EN ISO 20645:2004) has been prepared by Technical Committee CEN/TC 248 “Textiles and textile products”, the secretariat of which is held by BSI, in collaboration with Technical Committee ISO/TC 38 “Textiles”.
This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2005, and conflicting national standards shall be withdrawn at the latest by June 2005.
This document includes a Bibliography.
CAUTION This method involves the use of processes that could lead to a hazardous situation. Attention is drawn to the safety precautions in Clause 3.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
 
Introduction
The application of an antimicrobial finish to a textile can prevent bacterial growth and might reduce the effects of microbial pathway products, biodeterioration and microbiogenous odours.
This method determines the activity of such treatments qualitatively when different products are compared. Semi-quantitative information on the effect of treatments can be obtained when different concentrations of the same product are compared.
 
1   Scope
This document specifies a method for the determination of the effect of antibacterial treatments applied to woven, knitted and other flat textiles.
This method is applicable to testing hygienic finishes of hydrophilic, air-permeable materials or antibacterial products incorporated in the fibre. A minimum diffusion of the antibacterial treatment into the test agar is necessary with this procedure.
NOTE Other materials may be tested using this method, provided that it is adapted accordingly.
This method is not suitable for testing textiles treated with antibacterial treatments that react with the agar.
 
2   Terms and definitions
For the purposes of this document, the following term and definition applies.
antibacterial effect
inhibition of bacterial growth in favourable growing conditions
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