The ASTM Soils Hydrometer 151H,Range 0.995 to 1.038 (SG) has a seamless, symmetrical stem and bulb that does not vary in diameter. One-piece ballast is secured to lower part of the body. Guaranteed calibration accuracy eliminates errors due to variable dilution.
Total length: 11" (280mm).
Meets Test Methods:
AASHTO T88
ASTM C 775
ASTM D 422