Test Methods of HEPA Filter and their Application / 医疗卫生装备

ABSTRACT

Four test methods of HEPA filter such as D.O.P test, sodium flame test, oil mist test and particle counting test,are introduced briefly.Furthermore the numerical relations of the above four methods are analyzed. The differences between efficiency of test and practical efficiency and the aspects needed to be considered when testing filter for bio-protection are discussed at the end.