Equipment Checklist for
AHTD 449a
Calibration of Asphalt content Gauge Troxler 3241-C
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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 asphalt content gauge
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| Description
| Troxler Model 3241-C
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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
| Balance
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| Description
| Accurate to 0.1 pound with at least a 25 pound capacity
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| Calibration Item
| Verify mass readings
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| Calibration Procedure
| AASHTO M 231
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| Calibration Interval
| 12 months
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| Item
| Thermometer
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| Description
| Reads to at least 325 F
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| Calibration Item
| Verify temperature readings
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| Calibration Procedure
| ASTM E 1, ASTM E 77
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| Calibration Interval
| 6 months
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| Item
| Oven
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| Description
| Capable of heating to 350 F
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| Calibration Item
| Verify temperature readings
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| Calibration Procedure
| Verify with calibrated thermometer
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| Calibration Interval
| 4 months
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| Incidental Equipment
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| Description
| Pans supplied with gauge, five dish pans, 3/4" thick plywood
(slightly larger than pans supplied with gauge), hot plate or heater,
spoons, scoop, gloves, etc.
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| Calibration Item
| Check physical condition
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| Calibration Procedure
| Visual
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| Calibration Interval
| 12 months
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