標準號：BS ISO 4795-1997
中文標準名稱：實驗室玻璃器皿.溫度計球頭玻璃
英文標準名稱：Laboratory glassware - Glass for thermometer bulbs
標準類型：N64
發布日期：1997/4/15 12:00:00
實施日期：1997/4/15 12:00:00
中國標準分類號：N64
國際標準分類號：17.200.20;81.040.30
適用范圍：This International Standard specifies the physical and chemical characteristics and the marking of thermometric glass and the test methods to be used for the selection of glass for the manufacture of the bulbs of liquid-in-glass thermometers. It is not applicable to the glass used in parts of the thermometer other than the bulb (e.g. the stem). However, the glass used for the other parts can be identical to that used for the bulb. The coefficient of linear thermal expansion of the bulb glass should not differ from that of the glass intended for the stem by more than 0,2 × 10 K