Data obtained with an 152H hydrometer in accordance with ASTM D422-63(2007)e2.
A data frame containing 7 rows and 4 columns with information on:
| Time: | the measurement time in minutes |
| Temperature: | the temperature of the soil suspension |
| Reading: | the hydrometer reading at the bottom of the meniscus |
| Blank: | a blank value obtained in 5 g/L sodium hexametaphosphate solution (composite correction) |
ASTM D422-63(2007)e2, 2007. Standard Test Method for Particle-Size Analysis of Soils (Technical standard). ASTM International, West Conshohocken, PA. Available from http://www.astm.org/Standards/D422.htm