STN EN ISO 7704
| Name: | STN EN ISO 7704 |
| Validity: | Withdrawn |
| Number of pages: | 48 |
| Language: |
EN
|
| Hard copy: | 18,90€ |
| Electronic version |
a) Only read (without ability to print and copy)
17,01€ b) Without ability to print, with ability to copy (printscreen) 18,90€ c) With ability to print and copy (printscreen) 24,57€ |
| Slovak title | Kvalita vody. Požiadavky na hodnotenie membránových filtrov používaných na kvantitatívne stanovenia mikrobiologickými kultivačnými metódami (ISO 7704: 2023) |
| English title | Water quality - Requirements for the performance testing of membrane filters used for direct enumeration of microorganisms by culture methods (ISO 7704:2023) |
| Release Date: | 01. 05. 2023 |
| Date of withdrawal: | 01. 12. 2023 |
| ICS: | 07.100.20 |
| Sorting character/National clasification code | 75 7812 |
| Level of incorporation: | idt EN ISO 7704:2023, idt ISO 7704:2023 |
| Official Journal | 04/23 |
| Amendments | |
| Replaced by: | STN EN ISO 7704:2023-12 (75 7812) |
| Repleces: | |
| Note in Official Journal: | |
| Subject of the standard: | 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. 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[19]. This document is not applicable for membrane filters used for concentration and elution or for qualitative methods. These tests are applicable to the membrane filters intended for the microbiological analysis of different types of water, such as: — drinking water, bottled water and other types of water with expected low numbers of microorganisms; — water with expected higher numbers of microorganisms, for example, surface water and process water. |
| Preview: | Náhľad normy (PDF) |