October 2011 RUNWAY DEICER PERFORMANCE TEST FOR SAE AMS1431/1435 RUNWAY AND TAXIWAY DEICING CHEMICALS EVALUATION TEST REPORT 2011-MT-30 According to AIR6170 and AIR6172 Test Methods PURE CMA 30/70 (Generic) and Yeatz Runway De-icing Fluid, lot # 1 for Drago Ambarli Dolum Tesisleri Yolu Sehit Zafer Kiziltas Sokak No: 5 Ambarli Avcilar İstanbul Turkey by Caroline Blackburn Diane Paradis Marc Mario Tremblay
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October 2011
RUNWAY DEICER PERFORMANCE TEST
FOR SAE AMS1431/1435 RUNWAY AND TAXIWAY DEICING CHEMICALS
EVALUATION TEST REPORT
2011-MT-30
According to AIR6170 and AIR6172 Test Methods
PURE CMA 30/70 (Generic) and Yeatz Runway De-icing Fluid, lot # 1
for
Drago Ambarli Dolum Tesisleri Yolu
Sehit Zafer Kiziltas Sokak No: 5 Ambarli Avcilar İstanbul
Turkey
by
Caroline Blackburn
Diane Paradis Marc Mario Tremblay
2011-MT-30 1 AMIL, 2011-10-04
TABLE OF CONTENTS 1 INTRODUCTION................................................................................................2
AIR6172 - Ice Undercutting at -2°C and -10°C.................................................B-2
LIST OF FIGURES Figure 1 - Example of Ice Melting Test Set-Up ....................................................... 3
Figure 2 - Adapted Polystyrene Petri Dish with Dyed Chemical ............................. 4
Figure 3 - Ice Melting as a Function of Time at -2°C............................................... 6
Figure 4 - Ice Melting as a Function of Time at -10°C............................................. 6
Figure 5 - Ice Undercutting as a Function of Time at -2°C ...................................... 8
Figure 6 - Ice Undercutting as a Function of Time at -10°C .................................... 8
LIST OF TABLES Table 1 - Runway Deicer Identification ................................................................... 2
Table 2 - Ice Melting Results at -2°C ...................................................................... 5
Table 3 - Ice Melting Results at -10°C .................................................................... 5
Table 4 - Ice Undercutting Results at -2°C.............................................................. 7
Table 5 - Ice Undercutting Results at -10°C............................................................ 7
2011-MT-30 3 AMIL, 2011-10-04
3.2 Performance Tests Description
3.2.1 Ice Melting
This test was designed to evaluate the laboratory ice melting performance of SAE AMS 1431 [3] and SAE AMS 1435 [4] Runways and Taxiways Deicing/Anti-icing Chemicals. The test utilizes a sheet of ice of uniform thickness frozen in a flat circular polystyrene petri dish. After equilibration to the desired temperature, a weighed quantity of the deicing chemical is distributed over the surface of the ice (see Figure 1). At specified time intervals, generated brines are removed and the mass difference is calculated in order to obtain the mass of melted ice. Testing temperatures shall be within 1 °C (2 °F) of the stated values and tests are performed within a cold chamber.
Figure 1 - Example of Ice Melting Test Set-Up
3.2.2 Ice Undercutting
This test was designed to evaluate the laboratory ice undercutting capability by SAE AMS 1431 [3] and SAE AMS 1435 [4] Runways and Taxiways Deicing/Anti-icing Chemicals. The test utilizes small cylindrical cavities in a sheet of fabricated ice of uniform thickness frozen in a flat circular modified polystyrene petri dish having an average standardized surface roughness of 120 grit (see Figure 2). The bottoms of the cavities are essentially free of ice. After equilibration to the desired temperature, a known volume of dyed-liquid deicer is placed in the cavities, and undercutting
2011-MT-30 4 AMIL, 2011-10-04
commences (see Figure 2). Undercutting is evidenced by the formation of essentially circular undercut patterns. At specified time intervals, the dimensions of the observed undercut patterns are measured. The undercut pattern reflects the net result of melting on the walls of the ice cavity and melting at the ice/substrate interface. The undercut is relatively thick near the center and relatively thin at the extremities. The undercut area is defined as the total area of the circular undercut pattern minus the area of the original cavity. Testing temperatures shall be within 1 °C (2 °F) of the stated values and tests are performed within a cold chamber.
Figure 2 - Adapted Polystyrene Petri Dish with Dyed Chemical
2011-MT-30 5 AMIL, 2011-10-04
3.3 Ice Melting Test Results (AIR6170) Tests were conducted according to Ice Melting Test Method for Runways and Taxiways Deicing/Anti-icing Chemicals (proposed method, Feb. 2011) [1].
Table 2 - Ice Melting Results at -2°C
AMIL#
Refractive Index at 20°C
TimeInterval
(minutes)
5 6.10 ± 0.95
10 7.58 ± 0.18
30 13.42 ± 1.12
5 1.32 ± 0.23
10 2.06 ± 0.18
30 3.37 ± 0.12
5 5.94 ± 0.12
10 7.64 ± 0.16
30 10.91 ± 0.29
1.3926
Amount of Ice Melted(Average of three tests)
(g)
REF001
PURE CMA30/70
(Generic)
1.3932
1.3776
Yeatz RunwayDe-icing Fluid, Lot # 1
Table 3 - Ice Melting Results at -10°C
AMIL#
Refractive Index at 20°C
TimeInterval
(minutes)
5 3.77 ± 0.17
10 4.48 ± 0.27
30 6.06 ± 0.12
5 0.00 ± 0.00
10 0.00 ± 0.00
30 0.00 ± 0.00
5 3.60 ± 0.20
10 4.53 ± 0.24
30 5.55 ± 0.51
Yeatz RunwayDe-icing Fluid, Lot # 1
Amount of Ice Melted(Average of three tests)
(g)
REF001
PURE CMA30/70
(Generic)
1.3932
1.3776
1.3926
2011-MT-30 6 AMIL, 2011-10-04
AIR6170 - Ice Melting Results at -2°C
0.00
5.00
10.00
15.00
0 5 10 15 20 25 30 35Time Interval (min)
Am
ount
of I
ce M
elte
d (g
)REF001 PURE CMA
30/70(Generic)
Yeatz RunwayDe-icing Fluid, Lot # 1
Figure 3 - Ice Melting as a Function of Time at -2°C
AIR6170 - Ice Melting Results at -10°C
0.00
5.00
10.00
15.00
0 5 10 15 20 25 30 35Time Interval (min)
Am
ount
of I
ce M
elte
d (g
)
REF001 PURE CMA30/70(Generic)
Yeatz RunwayDe-icing Fluid, Lot # 1
Figure 4 - Ice Melting as a Function of Time at -10°C
2011-MT-30 7 AMIL, 2011-10-04
3.4 Ice Undercutting Test Results (AIR6172) Tests were conducted according to Ice Undercutting Test Method for Runways and Taxiways Deicing/Anti-icing Chemicals (proposed method, Feb. 2011) [2].
Table 4 - Ice Undercutting Results at -2°C
AMIL # RI at 20°CTime
Interval(minutes)
5 50.2 ± 5.7
10 90.9 ± 16.4
30 136.0 ± 9.9
5 7.6 ± 1.4
10 9.6 ± 1.2
30 17.6 ± 2.2
5 78.4 ± 8.4
10 111.9 ± 8.7
30 152.1 ± 9.7
1.3926
REF001
PURE CMA30/70
(Generic)
Yeatz RunwayDe-Icing Fluid,
Lot # 1
Ice UndercuttingIU
(mm2)
1.3932
1.3776
Table 5 - Ice Undercutting Results at -10°C
AMIL # RI at 20°CTime
Interval(minutes)
5 13.4 ± 2.1
10 28.0 ± 3.5
30 36.6 ± 5.9
5 5.5 ± 0.2
10 5.5 ± 0.2
30 5.5 ± 0.2
5 35.4 ± 3.3
10 51.9 ± 3.3
30 59.1 ± 1.9
PURE CMA30/70
(Generic)
Yeatz RunwayDe-Icing Fluid,
Lot # 1
1.3776
1.3926
Ice UndercuttingIU
(mm2)
REF001 1.3932
2011-MT-30 8 AMIL, 2011-10-04
AIR6172 - Ice Undercutting Results at -2°C
0
50
100
150
200
250
300
0 5 10 15 20 25 30 35
Time Interval (min)
Ice
Und
ercu
tting
(mm
2 )
REF001 PURE CMA30/70(Generic)
Yeatz RunwayDe-Icing Fluid, Lot # 1
Figure 5 - Ice Undercutting as a Function of Time at -2°C
AIR6172 - Ice Undercutting Results at -10°C
0
20
40
60
80
100
0 5 10 15 20 25 30 35
Time Interval (min)
Ice
Und
ercu
tting
(mm
2 )
REF001 PURE CMA30/70(Generic)
Yeatz RunwayDe-Icing Fluid, Lot # 1
Figure 6 - Ice Undercutting as a Function of Time at -10°C
2011-MT-30 9 AMIL, 2011-10-04
4 REFERENCES 1. SAE International Aerospace Information Report, "Ice Melting Test Method
for Runways and Taxiways Deicing/Anti-icing Chemicals", AIR6170, proposed draft 2011-02.
2. SAE International Aerospace Information Report, "Ice Undercutting Test Method for Runways and Taxiways Deicing/Anti-icing Chemicals", AIR6172, proposed draft 2011-02.
3. SAE International Aerospace Material Specification, "Compound, Solid Runway and Taxiway Deicing/Anti-icing", AMS 1431, revision C, September 2010.
4. SAE International Aerospace Material Specification, "Fluid, Generic, Deicing/Anti-icing Runways and Taxiways", AMS 1435, revision B, September 2010.