Grades
ISO 12103-1 A0 (0 to 5) um
ISO 12103-1 A1 Ultrafine
ISO 12103-1 A2 Fine
ISO 12103-1 A3 Medium
ISO 12103-1 A4 Coarse
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ISO 12103-1 아리조나 시험용 먼지(Arizona Test Dust)는 미국 아리조나 사막모래(Arizona Desert Sand)로 제조합니다. 아리조나 사막모래(Arizona Desert Sand)는 미국 아리조나 사막(Arizona Desert)의 솔트강(Salt River) 지역에서 채취하여 정해진 입자크기분포로 제조합니다.
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​​ISO 12103-1 test dusts are manufactured from Arizona desert sand. Arizona desert sand is a naturally occurring contaminant consisting primarily of silicon dioxide with smaller amounts of other compounds. It is collected from the Salt River area of Arizona desert and sized to specific particle size.
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ISO 12103-1 specifies five grades of test dusts made from Arizona desert sand composed of naturally occurring compounds which motor vehicles are commonly subjected to. These test dusts are used to determine performance of filtration systems. Due to the abrasive characteristics of these materials, they have also been used in wear studies involving bearings, internal combustion engines and fuel injection systems, seals, fan blades, windshield wipers, etc.
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Particle Size Distribution
Particle Size Distributions (volume % less than)
Size µm
A0 (0 to 5) µm
A1 ultrafine
A2 fine
A3 medium
A4 coarse
352.00
-
-
-
-
100.0
248.90
-
-
-
100.0
99.0 – 100.0
176.00
-
-
100.0
99.0 – 100.0
97.2 – 98.2
124.50
-
-
99.0 – 100.0
97.2 – 98.6
93.0 – 94.0
88.00
-
-
97.9 – 98.9
94.7 – 96.0
85.0 – 86.5
44.00
-
-
89.5 – 91.5
82.0 – 83.5
58.0 – 60.0
22.00
100.0
100.0
73.5 – 76.0
62.5 – 64.5
36.0 – 38.5
11.00
98.9 – 99.3
95.5 – 97.5
57.0 – 59.5
42.3 – 43.6
21.0 – 23.0
5.50
90.3 – 92.7
65.0 – 69.0
39.5 – 42.5
22.1 – 23.3
11.5 – 12.5
2.75
57.9 – 61.8
23.0 – 27.0
21.3 – 23.3
10.3 – 11.1
5.5 – 6.3
1.38
20.5 – 23.0
7.0 – 10.0
8.0 – 9.5
3.8 – 4.4
1.8 – 2.1
0.97
11.0 – 12.6
3.0 – 5.0
4.5 – 5.5
2.0 – 2.4
0.74 – 0.83
Note: Data shown in this table was determined using the particle size analysis instrument, Microtrac S3500. Use of any other particle size analysis equipment will obtain different results.
Particle size distribution specified limits shown in this table were derived from sample analysis of PTI manufactured test dust produced prior to May 1994 using three separate Microtrac Model S3500 light scattering analysis.

Bulk Density
Approximate Bulk Density (kg/m3)
A0 (0 to 5) µm
A1 Ultrafine
A2 Fine
A3 Medium
A4 Coarse
500
500
900
1025
1200

Chemical Analysis
Typical Chemical Content
Element
% of Weight
Element
% of Weight
SiO2
69.0 - 77.0
Ca0
2.5 - 5.5
Al203
8.0 - 14.0
Na20
1.0 - 4.0
Fe203
4.0 - 7.0
Mg0
1.0 - 2.0
K20
2.0 - 5.0
Ti02
0.0 - 1.0