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immediate downloadReleased: 1997-04-15
BS ISO 4795:1996
Laboratory glassware. Glass for thermometer bulbs
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| Standard number: | BS ISO 4795:1996 |
| Pages: | 14 |
| Released: | 1997-04-15 |
| ISBN: | 0 580 27252 4 |
| Status: | Standard |
DESCRIPTION
BS ISO 4795:1996
This standard BS ISO 4795:1996 Laboratory glassware. Glass for thermometer bulbs is classified in these ICS categories:
- 71.040.20 Laboratory ware and related apparatus
- 17.200.20 Temperature-measuring instruments
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 × 10−6K−1.