BS EN 1822-4-2009 高效空气过滤器(EPA,HEPA和ULPA).过滤元件泄漏性测定(扫描法)

标准号：BS EN 1822-4-2009
中文标准名称：高效空气过滤器(EPA,HEPA和ULPA).过滤元件泄漏性测定(扫描法)
英文标准名称：High efficiency air filters (EPA, HEPA and ULPA) - Determining leakage of filter elements (scan method)
标准类型：Q76
发布日期：2010/1/31 12:00:00
实施日期：2010/1/31 12:00:00
中国标准分类号：Q76
国际标准分类号：13.040.40
引用标准：EN 1822-1-2009;EN 1822-2;EN 1822-3;EN 1822-5-2009;EN 14799-2007
适用范围：This European Standard applies to efficient air filters (EPA), high efficiency air filters (HEPA) and ultra low penetration air filters (ULPA-filters) used in the field of ventilation and air conditioning and for technical processes, e.g. for applications in clean room technology or pharmaceutical industry.It establishes a procedure for the determination of the efficiency on the basis of a particle countingmethod using an artificial test aerosol, and allows a standardized classification of these filters in terms of their efficiency.This part of EN 1822 applies to the leak testing of filter elements. The scan method which is described in detail regarding procedure, apparatus and test conditions in the body of this standard is valid for the complete range of group H and U filters and is considered to be the reference test method for leakdetermination. The “Oil Thread Leak Test” according to Annex A and the “0,3 μm - 0,5 μm Particle Efficiency Leak Test” according to Annex E may be used alternatively but for defined classes of group H filters only.