Feather and down - Test methods - Determination of microbiological state
Действует
Печатная копияПечатное издание
114.98 € (включая НДС 20%)
Разработчик:
Зарубежные/ON
ICS:
59.040 Textile. Including feathers and down / Вспомогательные материалы для отделки текстиля. Включая перо и пух
Описание
1 .I Dip-slide method 1.1.1 This method describes the dip slide procedures, that uses two types of agar to test the presence of commensal bacteria and coliforrns (gram negative).This procedure is suitable when a manufacturer requires a simple test to screen finished filling material hygiene. 1.1.2 This method cannot be used to test the presence of sulphito-reducing clostrides (gram positive) and salmonella (gram negative). 1.2 Selective medium and count plate method This method describes procedures that use different types of medium to verify the presence and quantity of: - mesophilic aerobic bacteria (see 6.4) - fecal streptococci (see 6.5) - sulphite-reducing clostridiurn (see 6.6) - salmonella (see 6.7). This method, used for both raw and finished materials, gives more complete and specific inforrnation on the control of the microbiological state of the filling material than the dip slide method Diese ÖNORM beschreibt zwei Verfahren zur Bewertung des mikrobiologischen Zustandes von Federn als Füllstoff. Verfahren 1 kann nur zur Routinekontrolle eingesetzt werden, Verfahren 2 muß dann verwendet werden, wenn vollständige und spezifische Angaben über den mikrobiologischen Zustand benötigt werden.