BS ISO 4795:1996
Current
The latest, up-to-date edition.
Laboratory glassware. Glass for thermometer bulbs
Hardcopy , PDF
English
15-04-1997
Important note : Users cannot be edited or removed once added to your Multi user PDF.Defines physical and chemical characteristics and markings of thermometric glass and methods of testing in order to select glass for manufacturing bulbs of liquid-in-glass thermometers. Does not apply to glass anywhere else in the thermometer.
| Committee |
LBI/1/2
|
| DevelopmentNote |
Supersedes 95/126343 DC. (08/2004)
|
| DocumentType |
Standard
|
| Pages |
14
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
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.
| Standards | Relationship |
| ISO 4795:1996 | Identical |
| ISO 7884-7:1987 | Glass — Viscosity and viscometric fixed points — Part 7: Determination of annealing point and strain point by beam bending |
| ISO 719:1985 | Glass Hydrolytic resistance of glass grains at 98 degrees C Method of test and classification |
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