High Efficiency Particulate Air Filter (EPA, HEPA and ULPA

High Efficiency Particulate Air Filter (EPA, HEPA and ULPA

High Efficiency Particulate Air Filter
(EPA, HEPA and ULPA)
Manufacturing, Use, Testing and Classification
Jan Wenzek, FT&C
Consultant
11 April 2014
Straining or Sieving
11 April 2014
2
Inertial & Impingement
11 April 2014
3
Interception
11 April 2014
4
Diffusion
11 April 2014
5
Filtration Technology - Physical Properties
direct
collection
inertia
Diffusion
(Brownian
movement)
particle
movement
stream line
Fiber
11 April 2014
Minimum Efficiency of an Air Filter
MPPS Most Penetrating Particle Size
11 April 2014
7
Filter Technology
Traditional execution with separators
11 April 2014
Filter Technology
Modern execution as ‘minipleat’
11 April 2014
9
Industry Requirements
TA 2
TA 4
TA 5
TA 7
STYLE
0,75
1,25
1,50
2,25
m/s
1000
1700
2000
3000
m3/h # 610x610
78
150
150
292
Cell depth mm
250
250
250
250
Pa
11 April 2014
Industry Requirements
Micro-electronics
Industry:
Complete ULPA filter
ceiling with knife-edge
filters in fluid ceiling
11 April 2014
Industry Requirements
Micro-electronics
Industry:
Reliable HEPA filters
with FFU top
11 April 2014
Industry Requirements
Pharmaceutical Industry:
Filter Ceilings and Terminal
Filter Housings for Class A
and B
11 April 2014
Industry Requirements
Pharmaceutical Industry:
Reliable Terminal Filter
Housings for Class C and D
11 April 2014
History – Some National Standards
Standard
Aerosol
Mean
Particle
Diameter
Method of
Detection
Mass. Conc.
aerosol
Filter Class /
Fractional
Eff.
US Mil Std
282
DOP
0.3 µm
Light
Scattering
100 mg/m3
95%
99.97%
99.99%
99.999%
BS 3928
NF X44-013
Eurovent
4/4
NaCl
0.6 µm
Flame
Photometer
Mass conc.
14 mg/m3
EU
EU
EU
EU
EU
DIN 24.184
Paraffin
Oil
0.3-0.5 µm
Light
scattering
10-80 mg/m3
Q 85%
R 98%
S 99.97%
11 April 2014
10-95%
11-99.9%
12-99.97%
13-99.99%
14-99.999%
NEN EN 1822
11 April 2014
Efficiency and Penetration vs Particle Size
MPPS as
function of media
velocity
for the same
ULPA glass
media
11 April 2014
Typical Arrangement
EN1822 Test - Auto-Scan Rig
11 April 2014
18
Typical Arrangement
EN1822 Test – Manual Scanner
11 April 2014
19
HEPA & ULPA Classification
AutoScan vs. Visual Smoke Test
Smoke Test for H13 & H14 as Visual Scan accepted
11 April 2014
3D Graphical of Scan Local Penetration
11 April 2014
21
EN1822:2009 – Classification
11 April 2014
Label to EN1822
11 April 2014
A long way for the EN1822
 WG in DIN for new HEPA standard
 Draft DIN 24.183 - A New Concept
• Fractional efficiency @ MPPS
• Overall and local values
 CEN TC WG2
 prEN1822
 EN 1822 part 1/2/3
 EN 1822 part 4/5
 Current EN1822:2009 part 1/2/3/4/5
 ISO 29463
11 April 2014
1985
1990
1993
1998
1998
2000
2009
2012
What is New? - EN1822:2009
 Part1 New Classification EPA-HEPA-ULPA
 Part 4 Annex D Scanning with PSL (solid)
 Part 4 Annex E Scanning 0,3-0,5 μm for H13
with local eff. 99.996%
 Part 5 Statistical test method for EPA’s
 Part 5 Annex A Testing and classification of
membrane filters (PTFE)
 Part 5 Annex B Testing and classification of
(charged) synthetic media
11 April 2014
Impact on Local Standards and Regulations
 Introduction of new NEN EN 1822:2009
 Substitution of local standards within 6 months
and mandatory use for government tenders
 Adaptation of existing standards and regulations,
which refer to obsolete standard
 Civil and public law aspects
11 april 2014
EPA, HEPA & ULPA
ISO and EN Classification
Current
85
E10
95
ISO 15E
E11
99
ISO 20E
99,5
ISO 25E
E12
99,9
ISO 30E
99,95
ISO 35H
H13
99,99
ISO 40H
99,995
ISO 45H
H14
99,999
ISO 50U
99,9995
ISO 55U
U15
99,9999
ISO 60U
99,99995
ISO 65U
U16
99,99999
ISO 70U
99,999995
ISO 75U
U17
Overall
ISO
EN
efficiency 29463:2012 1822:2009
@ MPPS
11 April 2014
EU 10
EU 11
Q
R
Obsolete
EU 10
EU 11
EU 12
S
EU 12
99,97%
EU 13
S
EU 13
99,99%
EU 14
99,999%
BS 3928 &
BSI Doc.
90/73834
MIL STD 282,
overall eff. @
0,3 micron
EU 14
95%
EU 15
EU 16
EU 17
DRAFT DIN
24.183
(1998)
27
DIN
24.184
Earlier presentations for:
ASENMCO
All-Russia public organization
11 April 2014
28
Filtration Technology & Consult
Thank You for Your Attention
Questions ?
Presented by:
Jan Wenzek
FT&C BV
Waterberg 103
2905 RJ Capelle aan den IJssel
T: 0610954908
Email: [email protected]
11 April 2014
Martin on urgent deliveries
11 April 2014
30