规定了无内置温度计的恒质量玻璃比重计基本系列和子系列的要求。它们的刻度分别表示20摄氏度和15摄氏度时的密度。表面张力的标准类别见附录A，推荐的阀杆直径见附录B。

The requirements for basic series and sub-series of glass hydrometers of constant mass without built-in thermometer are specified. They are graduated to indicate density at 20 degrees centigrade and 15 degrees centigrade, respectively. Standard categories of surface tension are tabled in annex A, recommended stem diameters in annex B.