Pumice Typical Screen Analysis of Grades
More than 15 grades available.
100 gram samples are split and screened dry, on Rotap Shaker for 10 minutes, with sieves meeting ASTM E11-61T.
(Procedure similar to ASTM D392, Method A.)
|
U.S. Standard Mesh
|
Percentages on Each Mesh Grade (T=TRACE less than .05 grams)
|
|
Size No.
|
Inches Opening
|
Microns
|
FFFF
|
FFF
|
FF
|
F
|
0
|
01/2
|
03/4
|
1/2
|
1
|
11/2
|
3
|
4
|
5
|
|
10
|
.0780
|
2000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
14
|
.0550
|
1410
|
|
|
|
|
|
|
|
|
|
|
|
1-40
|
1-40
|
|
20
|
.0328
|
840
|
|
|
|
|
|
|
|
|
|
|
|
25-55
|
35-60
|
|
30
|
.0232
|
595
|
|
|
|
|
|
|
|
|
|
|
T-5
|
5-30
|
10-40
|
|
40
|
.0164
|
420
|
|
|
|
|
|
|
|
|
|
T-10
|
20-40
|
5-30
|
1-15
|
|
50
|
.0116
|
297
|
|
|
|
|
|
|
|
T-10
|
T-10
|
15-35
|
40-60
|
1-20
|
|
|
60
|
.0097
|
250
|
|
|
|
|
|
|
|
T-10
|
15-35
|
35-55
|
10-30
|
T-5
|
|
|
80
|
.0069
|
177
|
|
|
|
|
T-5
|
T-10
|
T-10
|
30-55
|
35-55
|
15-30
|
1-10
|
|
|
|
100
|
.0058
|
149
|
|
|
|
|
T-5
|
1-10
|
1-10
|
20-35
|
15-30
|
T-15
|
T-5
|
|
|
|
120
|
.0049
|
125
|
|
|
|
|
1-10
|
1-10
|
1-15
|
10-25
|
1-10
|
|
|
|
|
|
140
|
.0041
|
105
|
|
|
|
T-10
|
1-15
|
10-30
|
10-30
|
1-10
|
|
|
|
|
|
|
170
|
.0035
|
88
|
|
|
T-10
|
T-10 |
1-15
|
10-30
|
10-25
|
|
|
|
|
|
|
|
200
|
.0029
|
74
|
T
|
T
|
5-10
|
5-15
|
1-15
|
10-25
|
10-20
|
|
|
|
|
|
|
|
325
|
.0017
|
44
|
10-20
|
15-25
|
10-25
|
15-30
|
10-25
|
20-40
|
20-35
|
|
|
|
|
|
|
|
PAN
|
|
|
80-90
|
75-85
|
70-80
|
50-75
|
40-70
|
1-10
|
1-10
|
T-10
|
T-5
|
T-5
|
T-5
|
T-10
|
T-5
|
|
|
Totals
|
100%
|
100%
|
100%
|
100%
|
100%
|
100%
|
100%
|
100%
|
100%
|
100%
|
100%
|
100%
|
100%
|
| APPARENT BULK DENSITY- LBS/CU. FT. Poured loose and leveled per ASTM C29 |
48
|
47
|
45
|
45
|
44
|
37
|
36
|
34
|
32
|
31
|
29
|
28
|
26
|
OIL ABSORBTION, in lbs. per 100 lbs. of pumice
ASTM D1483 |
53
|
53
|
53
|
58
|
67
|
110
|
97
|
97
|
97
|
92
|
92
|
85
|
85
|
|
Grade
|
FFFF
|
FFF
|
FF
|
F
|
0
|
01/2
|
03/4
|
1/2
|
1
|
11/2
|
3
|
4
|
5
|
Note:
A trace is allowable on the next coarser test sieve for each grade other than FFFF, FFF, FF, and F.
The allowable tolerance as to the amount shown on the coarsest and finest sieve (or pan) for each grade is plus or minus 5% of total.
The percentages shown on sieves intermediate may vary somewhat beyond this tolerance.
Test samples available on request.
|
|
Pumice Typical Chemical Analysis
More than 15 grades available.
| SILICON DIOXIDE (Si02) |
74.200%
|
| IRON OXIDE (Fe203) |
1.620%
|
| ALUMINUM OXIDE (A1203) |
12.520%
|
| MAGNESIUM OXIDE (Mg0) |
.170%
|
| PHOSPHOROUS (P) |
.003%
|
ALKALIES NOT TESTED FOR:
SODIUM OXIDE (Na0)
POTASSIUM OXIDE (K20)
MOISTURE
|
11.047%
---------
|
|
100.000%
|
| pH (IN 10% AQUEOUS SOLUTION) |
8.2
|
| COLOR |
"NEAR WHITE"
|
|
|
Pumice General Physical Properties
More than 15 grades available.
THERMAL CONDUCTIVITY
(K factor) in BTU/hr/sq. ft. & 1°F/in. |
.630 to .438
Fines to Coarse
|
| HARDNESS on Mohs scale |
5.5 to 6
|
| SPECIFIC GRAVITY at 24°C |
2.25
|
| INDEX OF REFRACTION |
1.5
|
| FUSION TEMPERATURE |
2730°F
|
CRUSHING STRENGTH
(typical) in lbs/sq. in.
one inch compaction
two inch compaction |
990
2940
|
|
|