<p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt;">This document specifies the requirements for the performance testing of membrane filters used for the retention followed by direct enumeration of microorganisms by culture methods.</span></p>
<p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt;">This document is applicable to membrane filters which are used for retention followed by direct enumeration of specific microorganisms on solid media or on other devices containing media, like absorbent pads<sup>[<span class="citebib"><span style="color: black; mso-color-alt: windowtext; border: none;"><span style="border: none;">19</span></span></span>]</sup>.</span></p>
<p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt;">This document is not applicable for membrane filters used for concentration and elution or for qualitative methods.</span></p>
<p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt;">These tests are applicable to the membrane filters intended for the microbiological analysis of different types of water, such as:</span></p>
<p class="ListContinue1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 198.45pt; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt;">—<span style="mso-tab-count: 1;"> </span>drinking water, bottled water and other types of water with expected low numbers of microorganisms;</span></p>
<p class="ListContinue1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 198.45pt; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt;">—<span style="mso-tab-count: 1;"> </span>water with expected higher numbers of microorganisms, for example, surface water and process water.</span></p>
<p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt;">These tests are intended to demonstrate the suitability of the whole system (membrane filter together with the culture medium including the filtration step) required for the specific tests described in References [<span class="citebib"><span style="color: black; mso-color-alt: windowtext; border: none;"><span style="border: none;">3</span></span></span>], [<span class="citebib"><span style="color: black; mso-color-alt: windowtext; border: none;"><span style="border: none;">6</span></span></span>], [<span class="citebib"><span style="color: black; mso-color-alt: windowtext; border: none;"><span style="border: none;">8</span></span></span>], [<span class="citebib"><span style="color: black; mso-color-alt: windowtext; border: none;"><span style="border: none;">10</span></span></span>], [<span class="citebib"><span style="color: black; mso-color-alt: windowtext; border: none;"><span style="border: none;">1<span style="border: none;">2</span></span></span></span>] and [<span class="citebib"><span style="color: black; mso-color-alt: windowtext; border: none;"><span style="border: none;">1<span style="border: none;">3</span></span></span></span>].</span></p>
<p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt;">This document applies to:</span></p>
<p class="ListContinue1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 198.45pt; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt;">—<span style="mso-tab-count: 1;"> </span>manufacturers producing membrane filters;</span></p>
<p class="ListContinue1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 198.45pt; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt;">—<span style="mso-tab-count: 1;"> </span>microbiological laboratories using membrane filters for their own testing or providing these to other end users.</span></p>
Registration number (WIID)
78706
Scope
<p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt;">This document specifies the requirements for the performance testing of membrane filters used for the retention followed by direct enumeration of microorganisms by culture methods.</span></p>
<p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt;">This document is applicable to membrane filters which are used for retention followed by direct enumeration of specific microorganisms on solid media or on other devices containing media, like absorbent pads<sup>[<span class="citebib"><span style="color: black; mso-color-alt: windowtext; border: none;"><span style="border: none;">19</span></span></span>]</sup>.</span></p>
<p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt;">This document is not applicable for membrane filters used for concentration and elution or for qualitative methods.</span></p>
<p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt;">These tests are applicable to the membrane filters intended for the microbiological analysis of different types of water, such as:</span></p>
<p class="ListContinue1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 198.45pt; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt;">—<span style="mso-tab-count: 1;"> </span>drinking water, bottled water and other types of water with expected low numbers of microorganisms;</span></p>
<p class="ListContinue1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 198.45pt; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt;">—<span style="mso-tab-count: 1;"> </span>water with expected higher numbers of microorganisms, for example, surface water and process water.</span></p>
<p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt;">These tests are intended to demonstrate the suitability of the whole system (membrane filter together with the culture medium including the filtration step) required for the specific tests described in References [<span class="citebib"><span style="color: black; mso-color-alt: windowtext; border: none;"><span style="border: none;">3</span></span></span>], [<span class="citebib"><span style="color: black; mso-color-alt: windowtext; border: none;"><span style="border: none;">6</span></span></span>], [<span class="citebib"><span style="color: black; mso-color-alt: windowtext; border: none;"><span style="border: none;">8</span></span></span>], [<span class="citebib"><span style="color: black; mso-color-alt: windowtext; border: none;"><span style="border: none;">10</span></span></span>], [<span class="citebib"><span style="color: black; mso-color-alt: windowtext; border: none;"><span style="border: none;">1<span style="border: none;">2</span></span></span></span>] and [<span class="citebib"><span style="color: black; mso-color-alt: windowtext; border: none;"><span style="border: none;">1<span style="border: none;">3</span></span></span></span>].</span></p>
<p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt;">This document applies to:</span></p>
<p class="ListContinue1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 198.45pt; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt;">—<span style="mso-tab-count: 1;"> </span>manufacturers producing membrane filters;</span></p>
<p class="ListContinue1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 198.45pt; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt;">—<span style="mso-tab-count: 1;"> </span>microbiological laboratories using membrane filters for their own testing or providing these to other end users.</span></p>
