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FOR PRICES OR ADDITIONAL INFORMATION CALL
(800) 718-8737
Please confirm product identification
and specifications with PTI prior to
placing your order.
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Graded Crushed Quartz
Fractions
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GOOD COMMERCIAL QUALITY
SIZE GRADES
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Nominal Size
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U.S. Standard
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Range Microns
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Test Sieve No
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150 - 300
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+100 /-50
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300 - 420
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+ 50 /-40
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420 - 1000
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+ 40 /-18
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1000 - 1500
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+ 18 /-14
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Fractions shall contain a minimum of 98% within stated
size range
as measured by weight % using U.S. Standard Test Sieves.
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CRUSHED QUARTZ MIL E-5007C
SPEC
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PARTICLE SIZE DISTRIBUTION
Specified Range
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Specified
Micron Size
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Test Sieve
Designation
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% of Total <
by Weight
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1000
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U.S. 18
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100
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900
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Electroformed
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98-99
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600
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U.S. 30
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93-97
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400
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ATM 48
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82-86
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200
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ATM 88
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46-50
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125
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U.S. 120
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18-22
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75
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U.S. 200
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3-7
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SILICA
SAND and SILICA DUST • MIL-STD-810E
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PARTICLE SIZE DISTRIBUTIONS
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SILICA SAND |
| Specified Size
(µm)
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USA Test Sieve
Designation
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Specified Range
% Retained by weight
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850
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20
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1.0+/-0.5
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590
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30
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1.7+/-0.5
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420
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40
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14.8+/-1.5
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300
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50
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37+/-2.0
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212
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70
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28.6+/-2.0
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149
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100
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12.7+/-1.5
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-149
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-100
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5.2+/-1.0
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SILICA DUST |
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Specified Size (µm)
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USA Test Sieve
Designation
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Specified Range
(% Passing)
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149
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100
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100
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106
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140
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98 +/ -2
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75
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200
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90 +/ -2
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45
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325
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75 +/ -2
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PRODUCT
LIST MIL810F2
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PARTICLE SIZE DISTRIBUTIONS
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BLOWING DUST (Red China Clay)
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The particle size distribution is 100% by weight less
than 150 microns,
with a median diameter of 20 ± 5 microns. |
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BLOWING SAND (Good commercial quality
quartz)
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The particle size distribution is
from 150 microns to 850 microns, with
90 ± 5% by weight smaller than 600 microns and
larger than 149
microns, and at least 5% by weight 600 microns and larger. |
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