Equipment Checklist for
AHTD 461
In Place Density, % Compaction, of Asphalt
Concrete Hot Mix Using a Nuclear Gauge
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| All equipment shall be inspected for compliance with appropriate dimension
s, as stated in each standard, as well as to determine if it is in satisfactory
operation condition (i.e. clean, tight and serviceable). Inspection
shall occur at least annually, or whenever there is reason to suspect
nonconformance with the standard. |
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| Item
| Nuclear device
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| Description
| Containing a gamma source, gamma detector, site preparation
device, and a drive pin
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| Calibration Item
| Wipe Test
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| Calibration Procedure
| Perform
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| Calibration Interval
| 6 months
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| Item
| Reference standard and/or air gap spacer
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| Description
| Specific to each nuclear gauge for obtaining standard
counts
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| Calibration Item
| Verify that standard count is within tolerance
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| Calibration Procedure
| Perform standard count
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| Calibration Interval
| Daily or prior to use
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