ASTM D422 | AASHTO T88
Apparatus need for the particle analysis by hydrometer method
1. Soil hydrometer
Two types available, type A from 0.995 to 1.038 g/ml, type B -5 to 60 g/l, meets ASTM/AASHTO standards.
2. 1000ml Hydrometer jar
A calibrated thermometer with 0.5C resolution4. High speed stirrer with cup, speed up 10000rpm under no load.
Square mesh woven cloth sieves, aperture as below table:
5. Constant temperature water bath with heater, inner Dimensions: 600x300x380 mm
6. Glass beaker with cap. 250ml or larger but smaller than 500ml
7. Aluminum container with lid.
8. Others: balance, drying oven, glass rod.
9. Reagent: Sodium exametaphosphate