UK Distributor of TSI
HVAC & Laboratory
Control Products
Flow Containment, Laboratory Controls, Instrumentation
ASHRAE-110 Type-Test Report for 1.2m Wide
Bench-Type Fume Hood of GreenLab
Ref: ANSI/ASHRAE 110-1995
by
Dr A F Bicen
Invent UK Ltd
85 Southdown Road
Harpenden AL5 1PR
Tel: +44 (0) 1582 461666
Fax:+44 (0) 1582 460077
INV/ASHRAE110/713
Date: 6th July 2015
25
YEARS
1988 - 2013
Invent UK Ltd
85 Southdown Road
Harpenden, Herts AL5 1PR
Telephone: +44 (0) 1582 461666
Facsimile: +44 (0) 1582 460077
E-Mail Address: [email protected]
UK Distributor of TSI
HVAC & Laboratory
Control Products
1.
Flow Containment, Laboratory Controls, Instrumentation
INTRODUCTION
ASHRAE-110 type tests carried out for 1.2m wide bench-type vertical-sash fume hood of
GreenLab are reported. General information on test methods, procedures and requirements
can be found in reference 1.
2.
DESCRIPTION OF TEST ROOM FACILITIES
The tests were carried out in Invent UK's test room which is 9.6m long, 4.7m wide and 2.8m
high. The tests facilities include a variable-speed extract air system to adjust the extract
volume flow rate to the required value. The extract flow rate is measured by a venturimeter
with an accuracy of better than 2%. The make-up air was brought in through the perforated
ceiling tiles opposite the fume hood so as to allow a test room pressure in the range of -1Pa to
-5Pa. The test room differential pressure, temperature, relative humidity and velocity during
tests were:
Room differential pressure:
Room air temperature:
Room air relative humidity:
Room air velocity:
3.
-2Pa
20˚C - 22˚C
50%
much less than 0.1 m/s
DESCRIPTION OF FUME HOOD
The fume hood tested was 1.2m wide bench-type vertical-sash fume hood and designed &
built by GreenLab. The sash opening width was 900mm and the test height 500mm from the
bottom cill airfoil. Other geometric details of the hood are shown in Figure 1. Figure 1 also
shows the fittings, services, outlet controls, taps etc installed on the type tested fume hood.
4.
VELOCITY TESTS
Velocity tests were performed with the sash set at 500mm from the top of the bottom cill
airfoil. The velocity type-test grid for the test opening is shown in Figure 2. Figure 2 also
shows the velocity test results.
5.
FLOW VISUALISATION TESTS
The following observations were made:
Along the opening edge = GOOD
Top LHS corner = GOOD
Top RHS corner = GOOD
Bottom LHS corner = GOOD
Bottom RHS corner = GOOD
6.
CONTAINMENT TESTS
6.1 Static Sash Tests
The containment tests were performed for the same opening as in the velocity test. Figure 3
shows the positioning of the containment test system with respect to the test opening. Figure
3 also summarises the results and shows that the hood containment performance is very good.
6.2 Scanning of Static Sash Openings
Traversing of the sampling probe along the edges of the test opening resulted in SF6 levels
less than 0.020ppm.
25
YEARS
1988 - 2013
Invent UK Ltd
85 Southdown Road
Harpenden, Herts AL5 1PR
Telephone: +44 (0) 1582 461666
Facsimile: +44 (0) 1582 460077
E-Mail Address: [email protected]
UK Distributor of TSI
HVAC & Laboratory
Control Products
Flow Containment, Laboratory Controls, Instrumentation
REFERENCES
1. ANSI/ASHRAE 110-1995, ASHRAE Guideline, Method of Testing Performance of
Laboratory Fume Hoods, 1995.
List of instrumentation used during tests:
1.
Miran 205-B infrared gas analyser - SN: 76185-382 (containment tests)
2.
M+W Inst D-5110 flow meter - SN: 1309-50H0030-By (test gas flow rate metering)
3.
VelociCalc 9545-A - SN: 0713014 (velocity tests)
4.
Furness Control micromanometer (pressure drop test)
25
YEARS
1988 - 2013
Invent UK Ltd
85 Southdown Road
Harpenden, Herts AL5 1PR
Telephone: +44 (0) 1582 461666
Facsimile: +44 (0) 1582 460077
E-Mail Address: [email protected]
UK Distributor of TSI
HVAC & Laboratory
Control Products
Flow Containment, Laboratory Controls, Instrumentation & Plastic Fans
A
A
A
EXTERNAL DIMENSIONS:
Height =
2400
Width =
1200mm
Depth =
900mm
BAFFLE DIMENSIONS:
Top gap:
25mm (vertical)
Bottom gap: 200mm (vertical)
Baffle gap:
55mm (from back wall)
INTERNAL DIMENSIONS:
Height =
1060mm (max)
Width =
1100mm
Depth =
660mm (back wall-sash)
600mm (baffle-sash)
OTHER DIMENSIONS:
Cill gap:
20mm (min)
Sash gap:
25mm
Figure 1 Geometric features of 1.2m bench-type fume hood of GreenLab
25
YEARS
1988 - 2013
Invent UK Ltd
85 Southdown Road
Harpenden, Herts AL5 1PR
Telephone: +44 (0) 1582 461666
Facsimile: +44 (0) 1582 460077
E-Mail Address: [email protected]
UK Distributor of TSI
HVAC & Laboratory
Control Products
Flow Containment, Laboratory Controls, Instrumentation & Plastic Fans
AA
AA
AA
VelociCalc
0.50
150mm
125mm
01
03
05
02
04
06
AA
AA
AA
Grid point
Mean velocity (m/s)
01
0.50
03
0.48
05
0.50
Grid point
Mean velocity (m/s)
02
0.54
04
0.52
06
0.52
Average Face Velocity = 0.51m/s
Figure 2 ASHRAE-110 velocity type-test grid & results.
25
YEARS
1988 - 2013
Invent UK Ltd
85 Southdown Road
Harpenden, Herts AL5 1PR
Telephone: +44 (0) 1582 461666
Facsimile: +44 (0) 1582 460077
E-Mail Address: [email protected]
UK Distributor of TSI
HVAC & Laboratory
Control Products
Flow Containment, Laboratory Controls, Instrumentation & Plastic Fans
The mannequin is at 100mm away from the sash
plane and positioned at location shown below.
The sampling probe is at the breathing zone of the
mannequin and 75mm away from the sash plane.
The test gas injector is positioned on the work top
at location shown below. The injector is at 150mm
in from the sash plane.
The test gas is 100% SF6.
The test gas flow rate is 4.0lt/min.
300mm
CL
300mm
P1 P2 P3
AA
AA
AA
POSITION P1
POSITION P2
POSITION P3
Mean SF6
Concentration
Mean SF6
Concentration
Mean SF6
Concentration
<0.020ppm+
<0.020ppm+
<0.020ppm+
+ the minimum detection level of the test system, including background SF6.
Figure 3 Positioning of ASHRAE-110 containment test system and results.
25
YEARS
1988 - 2013
Invent UK Ltd
85 Southdown Road
Harpenden, Herts AL5 1PR
Telephone: +44 (0) 1582 461666
Facsimile: +44 (0) 1582 460077
E-Mail Address: [email protected]
ANSI/ASHRAE 110-1995
Flow Containment & Instrumentation
CERTIFICATE OF TYPE TESTING IN
ACCORDANCE WITH ASHRAE 110-1995
CERTIFICATE & REPORT NO: INV/ASHRAE110/713
DATE: 6th July 2015
Fume Hood Manufacturer:
GreenLab
Omerli Mah
Koskoop San Sitesi
Misir Sokak No: 7
Hadimkoy - Istanbul
TURKEY
Fume Hood Type:
1.2m wide bench-type vertical-sash
External Dimensions:
Height =
2400mm
Width =
1200mm
Depth =
900mm
Internal Dimensions:
Height =
1060mm
Width =
1100mm
Depth =
660mm (wall-sash)
600mm (baffle-sash)
Baffle Gap Dimensions:
Top gap:
25mm
Bottom gap: 200mm
ED
15
07/
/
6
0
I
I
C E RT
F
Test Opening:
Width:
900mm
Height:
500mm
Fume Hood Flow:
Flow rate:
0.250m3/s
Face velocity: 0.51m/s
Press drop: 120Pa (at 200mmD)
Fume Hood Containment:
Position P1: <0.020ppm
Position P2: <0.020ppm
Position P3: <0.020ppm
Edge scan: <0.020ppm
This is to certify that the fume hood described above has been typetested in accordance with ASHRAE 110-1995 and resulted in
performance characteristics given in the corresponding test report.
Tested and Certified by: Dr A F Bicen
Invent UK Ltd, 85 Southdown Road, Harpenden, Herts AL5 1PR
T: +44 (0) 1582 461666 F: +44 (0) 1582 460077 E: [email protected]