DFE测试方法—定量滤芯截留率和留存率
同一生产厂家两种相同
的高效玻纤滤芯的性能，其中一个是根
据 ***16889 多次通过测试，另外一个是
根据 DFE 多次通过测试方法、图表表示
滤芯在测试时下 6[C]颗粒的实际数量。
A2 滤芯是在额定流量和保持稳定
的过滤效率的测试，A1 滤芯是在
流量与***小流量之间循环测试。这样 A1 的
下游的颗粒是变化的，并且在从***小到
流量时颗粒数为。峰值代表
流量变化时的颗粒数，峰谷代表每次流量
变化后的颗粒数，变化的峰值代表流量从
低到高的变化。当 A1 滤芯拦截的污染物增
加，同时流量从低到高时下游的颗粒数量增
加。因此 A1 滤芯没有达到正确设计时污染
物的留存率，这将会是危险的污染源。
A1 滤芯在从低流量到高流量变化时上游和下游的原始颗粒数，A1 滤芯在
从低流量到高流量变化时的颗粒数。下游的颗粒数可以表明流量变化时大量的的大颗粒在动态条
件下没有通过滤芯，这种现象称之为“污染物卸载”。当滤芯截留更多污染物时，更多数量的污染
物将被释放回系统。卸载也可能发生在流速从高到低的变化情况下，在动态条件下滤芯能短暂恢
复，但污染物卸载能引起流体的高污染，使系统遭受破坏和系统性能不可靠。
滤芯A1 A2
过滤比效率 β7[C]＞1000 β7[C]＞1000
高流量112 112
低流量56 -
污染物 （注入率） 3mg/1 3mg/1
HP33DHL7-3MB
HP33DHL7-3MV
HP33DHL7-3MB
HP33DHL7-6MB
HP33DHL7-6MV
HP33DHL7-6MB
HP33DHL7-12MB
HP33DHL7-12MV
HP33DHL7-12MB
HP33DHL7-25MB
HP33DHL7-25MV
HP33DHL7-25MB
HP33DNL7-3MV
HP33DNL7-3MB
HP33DNL7-6MB
HP33DNL7-6MV
HP33DNL7-6MB
HP33DNL7-12MB
HP33DNL7-12MV
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HP33DNL7-12MV
HP33DNL7-12MB
HP33DNL7-25MB
HP33DNL7-25MV
HP33DNL7-25MB
HP33DHL10-3MB
HP33DHL10-3MV
HP33DHL10-3MB
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HP33DHL10-6MV
HP33DHL10-6MB
HP33DHL10-12MB
HP33DHL10-12MV
HP33DHL10-12MB
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HP33DHL10-25MV
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HP33DNL10-3MB
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HP33DNL10-3MB
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HP33DNL10-6MV
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HP33DNL10-12MB
HP33DNL10-12MV
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HP33DNL10-25MB
HP33DNL10-25MV
HP33DNL10-25MB
HP33DHL14-3MB
HP33DHL14-3MV
HP33DHL14-3MB
HP33DHL14-6MB
HP33DHL14-6MV
HP33DHL14-6MB
HP33DHL14-12MB
HP33DHL14-12MV
HP33DHL14-12MB
HP33DHL14-25MB
HP33DHL14-25MV
HP33DHL14-25MB
HP33DNL14-3MB
HP33DNL14-3MV
HP33DNL14-3MB
HP33DNL14-6MB
HP33DNL14-6MV
HP33DNL14-6MB
HP33DNL14-12MB
HP33DNL14-12MV
HP33DNL14-12MB
HP33DNL14-25MB
HP33DNL14-25MV
HP33DNL14-25MB
HP33DNL14-3MB
HP33DNL14-3MV
HP33DNL14-3MB
HP33DNL14-6MB
HP33DNL14-6MV
HP33DNL14-6MB
HP33DNL14-12MB
HP33DNL14-12MV
HP33DNL14-12MB
HP33DNL14-25MB
HP33DNL14-25MV
HP33DNL14-25MB
HP80L4-25MB
HP17L2-12MB
HP17L2-25MB
HP27L4-25MB
HP27L4-25MB
HP27L4-6MB
HP37L4-25MB
HP37L4-25MB
HP37L4-3MB
HP37L8-12MB
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HP37L8-25MB
HP37L8-3MB
HP37L8-6MB
HP37L13-12MB
HP37L13-25MB
HP37L13-25MB
HP37L13-3MB
HP37L13-6MB
HP500L5-10M
HP500L5-25M
HP500L5-3M
HP500L5-3M
HP500L5-6M
HP501L5-10M
HP501L5-3M
HP800L10-10M
HP800L10-25M
HP800L10-3M
HP800L10-6M
HP801L10-10M
HP801L10-3M
HP1200L15-10M
HP1200L15-25M
HP1200L15-3M
HP1200L15-6M
HP1201L15-10M
HP1201L15-3M
HP37L4-6MB
HP1200L15-3M
HP703NL10-10MB
HP60L4-12MB
HP60L4-12MB
HP60L4-25MB
HP60L4-25MB
HP60L4-3MB
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HP60L13-12MB
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HP60L13-25MB
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HP60L13-6MB
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HP60L16-12MB
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HP80L4-12MB
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HP80L4-6MB
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HP81L4-15MB
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HP80L8-12MB
HP80L8-12MB
HP80L8-25MB
HP80L8-25MB
HP80L8-3MB
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HP80L8-6MB
HP80L8-6MB
HP81L8-15MB
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HP81L8-2MB
HP81L8-2MB
HP80L13-12MB
HP80L13-25MB
HP80L13-3MB
HP80L13-6MB
HP81L13-15MV
HP81L13-15MB
HP81L13-2MV
HP81L13-2MB
HP20L4-12MB
HP20L4-25MB
HP20L4-3MB
HP20L4-6MB
HP21L4-15MB
HP21L4-2MB
HP20L8-12MB
HP20L8-25MB
HP20L8-3MB
HP20L8-6MB
HP21L8-15MB
HP21L8-2MB
HP06DNL4-12MB
HP06DNL4-25MB
HP06DNL4-3MB
HP06DNL4-6MB
HP06DHL4-12MB
HP06DHL4-25MB
HP06DHL4-3MB
HP06DHL4-6MB
HP06DNL7-12MB
HP06DNL7-25MB
HP06DNL7-3MB
HP06DNL7-6MB
HP06DHL7-12MB
HP06DHL7-25MB
HP06DHL7-3MB
HP06DHL7-6MB
HP06DNL8-12MB
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HP06DHL8-12MB
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HP16DNL5-12MB
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HP16DHL5-6MB
HP16DNL8-12MB
HP16DNL8-25MB
HP16DNL8-3MB
HP16DNL8-6MB
HP33DNL7-12MB
HP33DNL7-25MB
HP33DNL7-3MB
HP33DNL7-6MB
HP33DHL7-12MB
HP33DHL7-25MB
HP33DHL7-3MB
HP33DHL7-6MB
HP33DNL10-12MB
HP33DNL10-25MB
HP33DNL10-3MB
HP33DNL10-6MB
HP33DHL10-12MB
HP33DHL10-25MB
HP33DHL10-3MB
HP33DHL10-6MB
HP33DNL14-12MB
HP33DNL14-25MB
HP33DNL14-3MB
HP33DNL14-6MB
HP33DNL14-12MV
HP33DNL14-25MV
HP33DNL14-3MV
HP33DNL14-6MV
