World Leaders in Aerosol Filter Testing. Providing Solutions for all your filter testing needs

Transcription

1 World Leaders in Aerosol Filter Testing Providing Solutions for all your filter testing needs

2 HEPA FILTER TEST EQUIPMENT MANUFACTURER & PRINCIPAL

3 HEPA FILTER TESTING KEY MESSAGES EN1822/ISO29463 is for manufacturers testing of HEPA filters ISO is for in-situ HEPA filter testing In-situ testing guidance available to test difficult-to-access filters Photometer method popular choice for in-situ test method globally

4 CONTENT The defects we have to find The test method The test equipment Some principles Test results

5 OUTDOORS TESTING

6 FIND THE DEFECT?

7 FIND THE DEFECT?

8 FIND THE DEFECT?

9 FIND THE DEFECT? So we have to measure!!

10 Defect in HEPA FILTER % DOP scan test 21µ hole 0.01% DOP scan test 68µ hole

11 MPPS OF HEPA FILTER Diffusion Inertia Most Penetrating Particle Size Slide by Freudenberg Filtration

12 HEPA en ULPA Classificatie volgens EN1822: op MPPS (Most Penetration Particle Size) FliterClass Overall Value Efficiency % Overal Value Penetration % Local Efficiency % Local Penetration % H H H H H U U U

13 AIR VELOCITY & EFFICIENCY CONSIDER % at m/s We all want this filter???? Then look at this : % 0.03 m/s % 0.06 m/s % 0.12 m/s % 0.24 m/s The MPPS shifts up and down with decrease and increase in velocity

14 ISO Aerosol concentration

15

16 Meet de luchtsnelheid/volume 0.45m/sec voor cleanroom of cabinet filters Maximaal 3m/sec voor HVAC filters Meet drukval over het filter ΔP 125 tot 175Pa voor cleanroom filters 150 tot 225 voor 1m/sec kanaal filters 175 tot 275Pa for 2m/sec+ HVAC filters Vervang het filter Waneer de luchtsnelheid of volume niet gehaald kan worden Als de ΔP 4x hoger is als de initiele begindruk Als de efficientie test niet gehaald word

17 THE TEST PRINCIPLES

18 BS EN ISO14644 TEST METHODS AIR DUCT HEPA FILTER DIRECTION OF OF AIR AIR FLOW Minimum of 20 duct diameters Challenge aerosolintroduced min min duct duct diam from from filter filter under test Challenge aerosol concentration "x" g/l in range 20 to 80 g/l Filter scanned down stream for local leaks "y" g/l Downstream integral/volumetric test "y" g/l

19 Volumetric to scan Leak Relationship Volume Flow m3/hr DOP Volumetric Leak Equivalent Local DOP Leak % 3% % 4% % 6% % 7% % 9% % 10% % 12% % 13% % 15% % 16% % 18% % 19% % 21% % 22% % 24%

20 DOP Photometers DOP TOUCH AEROSOL PHOTOMETER SP200

21 USER DEFINED PARAMETERS Oil type selected from drop-down menu Tester, client, facility - all can be detailed Instrument details can be added on screen All Data is used for the Filter Test Report

22 UPSTREAM CHALLENGE REVIEW Auto calibration with chosen oil aerosol type Min/max/average challenge recorded Challenge variation reported, user accept/reject prompted

23 LIVE GRAPH Data acquisition capability for excel use Shows defects even if filter % Penetration is acceptable

24 FILTER TEST REPORT Print A4 test certificate directly Save test certificate to USB memory stick or internal hard drive Supports GMP, EN1822, ISO29463 and IEST-RP-0034 data compliance

25 AEROSOL GENERATOR (cold/laskin nozzle) Pneumatic Laskin Nozzle generator Laskin nozzle generator with compressor

26 AEROSOL GENERATOR (thermal) DOP2200 Thermal generator DOP1100 Thermal generator

27 Percentage Counts Particle size distributions Particle Size Distribution DOP1100 (Thermal - Hot ) versus Laskin Nozzle (Cold) Thermal Laskin Mid Size Particle Range um

28 AEROSOL INJECTION Speed controlled PIP

29 AEROSOL MIXING HEPA Filter Direction of air flow Point leak in filter 20 duct diameters before complete mixing occurs

30 Aerosol Injection Sampling Ports Scanning Probes

31 AEROSOL MIXING

32 RESULTS as % penetration Phot Phot :51:22 17:52:48 17:54:14 17:55:41 17:57:07 17:58:34 18:00:00 18:01:

33 REPORTING RESULTS Average Min Max

34 REMINDER EN1822/ISO29463 is for manufacturers testing of HEPA filters ISO is for in-situ HEPA filter testing In-situ testing guidance available to test difficult-to-access filters Photometer method popular choice for in-situ test method globally

35 THANKYOU FOR LISTENING Martin Derks/Tim Triggs +44 (0) (0) Providing Solutions for all your filter testing needs Lighthouse BV (0)