Equipment Checklist for AASHTO T 89-96
Determining the Liquid Limit of Soils

 
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.

 

 

Item Mixing Equipment
Description Dish, porcelain, ~115 mm in diameter Spatula, blade, 75-100 mm long and 20mm wide
     
Calibration Item See general statement above
Calibration Procedure
Calibration Interval
 

Item Liquid Limit Device
Description Brass dish, carriage, and base described in Sec 3.3
     
Calibration Item Dimensions, height of fall, base and cup wear, resilience
Calibration Procedure Dimensions Sec 3.3, Figure 1 and Note 1
Height of fall Sec 5.1-5.2 using Note 4
Base and cup wear Sec 5.1, Note 3
Resilience App XI.I
Calibration Interval Dimensions: daily or each use
Height of Fall: daily or each use
Base and cup wear: daily or each use
Resilience Not stated
 

Item Grooving Tool
Description Curved tool with gage as described in AASHTO T 89, Fig 1
     
Calibration Item Dimensions
Calibration Procedure AASHTO T 89. Sec. 3.4.1, 3.5
Calibration Interval See the general statement above.
 

Item Containers (Moisture Content)
Description As described in Sec. 3.6 (metallic, tinned steel or aluminum)
     
Calibration Item See the general statement above. (serviceable lids with no rust or corrosion)
Calibration Procedure
Calibration Interval
 

Item Balance
Description Conforms to AASHTO M 231, Class G1 (0.01 gm)
     
Calibration Item Accuracy and condition
Calibration Procedure AASHTO M 231, Sec. 4.2 and 4.3
Calibration Interval Not stated
 

Item Oven
Description Thermostatically controlled, forced draft, 110C + 5
     
Calibration Item Temperature
Calibration Procedure AASHTO 265, sec. 3.1
Calibration Interval Not stated