Soil Hydrometer SG 0.995-1.038 x 0.001 +/- 0.001 @ 20°C 280mm long ASTM 151H62. Made in France by Alla. What is a Soil Hydrometer? Soil hydrometers are used to test the...
Soil Hydrometer -5 to 60 x 1.0g/l +/- 1.0g/l @ 20°C 280mm long.ASTM 152H62. Made in France by Alla. How does a Soil Hydrometer work? The hydrometer analysis of soil,...