| Eccospheres® glass microspheres appear in the form of a free flowing white powder |
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Test Method TEC QSD |
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Test method ASTM D1921-96 |
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SID-311Z |
A maximum of 2% by weight will be retained on a +125 micron sieve |
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SID-350Z |
A maximum of 2% by weight will be retained on a +125 micron sieve |
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SI-250 |
A maximum of 2% by weight will be retained on a +125 micron sieve |
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FTD-250 |
A maximum of 2% by weight will be retained on a +125 micron sieve |
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SID-230Z |
A maximum of 4% by weight will be retained on a +125 micron sieve |
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SID-200Z |
A maximum of 3% by weight will be retained on a +150 micron sieve |
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SI-200 |
A maximum of 2% by weight will be retained on a +125 micron sieve |
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FTD-200 |
A maximum of 2% by weight will be retained on a +125 micron sieve |
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ASTM D2840. Nominal density +/-0.02g/cc |
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ASTM D3101. Ratio of bulk density to true density. Range: 62-66% |
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ASTM D3102. Minimum 80% survival at given pressure |
| Alkalinity |
ASTM D3100. Alkalinity 0.02-0.1 milliequivalents per gram |
| ASTM D4876 6.5-9.0 |
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TEC QSD <1% by weight maximum |
| TEC QSD. Minimum of 98% by bulk volume float in water |
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ASTM E794. |
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SID and SI series soften at 800°C / 1472°F |
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FTD series soften at 700°C / 1292°F |
| AST D150. 1.36-1.63 when tested at a frequency of 100MHz |
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ASTM D150. Mean 0.0005 when tested at frequencies 1MHz - 8.6GHz |
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0.073-0.125 W/m.K at 25°C, based on theoretical calculations
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Eccospheres® glass microspheres contain inert gases in a partial vacuum. Pressure <0.5 atm |
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Sodium Borosilicate Glass |
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Refractive Index at 5893 Angstroms at 25°C = 1.458
Refractive Index at 1500 Angstroms at 25°C = 1.448 |
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At 25°C = 62GPa |
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Eccospheres® glass microspheres will remain free flowing for up to 2 years if kept in the original unopened container in a dry unheated warehouse |