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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 | Sieves | |
| Description | Nest: Upper sieve opening size ranging from 2.36 mm (No. 8) to 1.18 mm (no. 16), Lower sieve opening size 0.075 mm (No. 200) | |
| Calibration Item | Opening size | |
| Calibration Procedure | AASHTO M 92 | |
| Calibration Interval | Not stated | |
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| Item | Balance | |
| Description | Conforms to AASHTO M-231, accurate to 0.1 percent of sample mass | |
| Calibration Item | Accuracy and condition | |
| Calibration Procedure | AASHTO M 231, Sec. 4.2 and 4.3 | |
| Calibration Interval | Not stated | |
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| Item | Oven | |
| Description | Thermostatically controlled, forced draft, 110C + 5 | |
| Calibration Item | Temperature | |
| Calibration Procedure | AASHTO T 265, sec. 3.1 | |
| Calibration Interval | Not stated | |
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