المعايير

Solid-stem general purpose thermometers

2009

رقم المستند: NL ISO 1770 : 2009
القطاع: Metrology and Measurement. Physical Phenomena
TC: NL TC 48
ICS: 17.200.20
This International Standard specifies requirements for two series of inexpensive "commercial quality" liquid-in-glass thermometers of the solid-stem type suitable for general purpose use in industry, schools and laboratories when great accuracy of measurement is not required : a) a series designated A to H, in which nominal ranges and maximum overall lengths are specified but which may not be acceptable for testing by a national verification laboratory; b) a series designated J to W of greater accuracy than in a) and with specified ranges and a tolerance on overall length, which may be acceptable for testing by a national verification laboratory. The temperature range covered by each series is from - 100 °C to + 500 °C.