Standard specification for astm hydrometers Astm流体比重计的标准规范
2.
Measurement of the density of milk using a hydrometer - methods 用流体比重计测定奶的密度.第2部分:方法
3.
Specification for density hydrometers 流体比重计规范
4.
Test method for dispersive characteristics of clay soil by double hydrometer 用双倍流体比重计测定粘土的分散特性的试验方法
5.
Measurement of the density of milk using a hydrometer - specification for hydrometers for use in milk 用流体比重计测定奶的密度.第1部分:奶用流体比重计规范
6.
Measurement of the density of milk using a hydrometer - percentage of total solids and non - fatty solids in milk corresponding to given fat content and observed density fat content range 2 - 6 per cent with fat in the liquid state 用流体比重计测定奶的密度.奶中总固体和非脂肪固体对应2 - 6 %脂肪含量范围内给定脂肪含量和观测密度
