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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 | Breaking Head | |
| Description | Upper and lower cylindrical segments with guide rods and sleeves | |
| Calibration Item | Check physical condition | |
| Calibration Procedure | Visual | |
| Calibration Interval | 12 months | |
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| Item | Loading Jack | |
| Description | Screw Jack mounted in a testing frame producing uniform vertical movement of 50.8 mm (2 in.) / min. | |
| Calibration Item | Check Operation | |
| Calibration Procedure | Verify vertical movement speed | |
| Calibration Interval | 12 months | |
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| Item | Load measurement system with recording device | |
| Description | Must meet criteria given in AASHTO T 245, paragraph 2.8 | |
| Calibration Item | Verify load measurements | |
| Calibration Procedure | Measure loads | |
| Calibration Interval | 12 months | |
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| Item | Flowmeter with recording device | |
| Description | Must meet criteria given in AASHTO T 245 paragraph 2.9 | |
| Calibration Item | Verify flow readings | |
| Calibration Procedure | Measure flow | |
| Calibration Interval | 12 months | |
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| Item | Oven | |
| Description | Capable of maintaining required temperatures within ± 5 F | |
| Calibration Item | Verify temperature | |
| Calibration Procedure | Verify with calibrated thermometer | |
| Calibration Interval | 4 months | |
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| Item | Water Bath | |
| Description | Maintained at a constant temperature of 60 ± 1 C or 37.8 ± 1 C and having a false bottom or shelf such that samples are supported 2 inches above the bottom of the bath | |
| Calibration Item | Verify temperature | |
| Calibration Procedure | Verify with calibrated thermometer | |
| Calibration Interval | Daily or Prior to Use | |
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| Item | Thermometer | |
| Description | Appropriate temperature range for various uses in test method | |
| Calibration Item | Verify temperature readings | |
| Calibration Procedure | ASTM E 1, ASTM E 77 | |
| Calibration Interval | 6 months | |
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| Item | Balance | |
| Description | Readable to 0.1% of total mass or better | |
| Calibration Item | Verify mass readings | |
| Calibration Procedure | AASHTO M 231 | |
| Calibration Interval | 12 months | |
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| Item | Incidental Equipment | |
| Description | Heating device, stability/flow graph paper, mixing apparatus, containers, mixing tools, scoop, spoons, marking crayons, gloves, etc. | |
| Calibration Item | Check physical condition | |
| Calibration Procedure | Visual | |
| Calibration Interval | 12 months | |
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