YY/T 0471.5-2017: Translated English of Chinese Standard. (YYT 0471.5-2017, YY/T0471.5-2017, YYT0471.5-2017): Test Methods for Primary Wound Dressings - Part 5: Bacterial Barrier Properties
https://www.chinesestandard.net, 01.09.2018 - 16 Seiten
This Part of YY/T 0471 specifies test methods 1 of evaluating bacterial barrier properties of primary wound dressings that claim to have bacterial barrier properties. In this Part, test methods involve microbial detection, which shall be conducted by trained personnel in biosafety laboratories.
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1---Glass stopper 2---Glass test device 4---Fixing screw A---Challenge room accordance with 5.2.1 Add challenge microorganism adopt sterilization procedure adopted for vitality adopted to examine agar medium shows already been confirmed appropriate microbiological methods B---Sampling room bacterial barrier properties barrier property test challenge bacterial solution Challenge microbiological vitality challenge room CICC confirmed to sterilize deemed as invalid device for later dressings is expected dressings that claim dry inside external contamination growth of Serratia inoculate later usage low-moisture condition map of bacterial microbiological vitality examination nutrient agar medium nutrient broth medium Operate in accordance Penetrating microbiological examination place challenge inoculum plate of nutrient primary wound dressings properties under semi-wet property test device requirement of bacterial Result Judgment sample complies sampling room semi-wet condition dry semi-wet condition wet Serratia marcescens Shandong Sketch Map sterile swab sterilize the test surface of dressings test is invalid test method water resistant wet condition wet inside YY/T