Rubber plug bioburden test method

1.Principle

The purpose of this test is to detect all aerobic plants and fermented materials and soil residues adhering to the gel plug by means of membrane filtration and to culture these filters.
2.Test procedure

2.1 Preparation of leachate 2.2 Leaching 2.3 Filtration 2.4 Cultivation 2.5 Results 3.Passing standards

1.Principle The purpose of this test is to detect all aerobic plants and fermented materials and soil residues attached to the rubber plug by means of membrane filtration,and to culture these filters.

2.Test Procedure 2.1 Preparation of Leachate The leachate was a 0.9%NaCl solution(with distilled water)and 1 ml of a nonionic active agent was added.