CEN/TC 141 - Pressure gauges - Thermometers - Means of measuring and/or recording temperature in the cold chain

This European Standard specifies requirements and testing for dial indicating thermometers using sensing methods of gas expansion (symbol GE), liquid expansion (symbol LE) and bimetallic strip (symbol BM). Nominal sizes are from 40 to 160, and temperature measurement from -100 °C to +700 °C.
Thermometers specified have circular scales, and are for industrial use only.
Thermometers of square form are also covered by this standard except for case, scale and pointer dimensions.
Annex A includes recommendations for selection and installation.
This standard does not apply to thermometers for medical use nor to thermometers with electrical limit contact devices.

TC - Mistake

This part of prEN 837               only applies to those pressure gauges whose pressure responsive element measuring system is a metal part which deforms under the effect of the pressure measured, as defined in prEN 837-1 and   EN 837-3. This standard has been prepared to assist in the selection, installation and use of pressure gauges to ensure that they give satisfactory service for the intended application with the maximum level of safety.

This European standard specifies requirements for Bourdon tube (designated by B, see clause 12) indicating pressure gauges, vacuum gauges and combined vacuum and pressure gauges (compound gauges), with circular, spiral or coiled forms, from 40 to 250 nominal size with ranges up to 1600 bar for the measurement of gauge pressure. A reading of zero bar is atmospheric pressure.

This European Standard specifies requirements for diaphragm and capsule (designated by D and C respectively, see clause 12) indicating pressure gauges, vacuum gauges and combined vacuum and pressure gauges (compound gauges), from 50 to 250 nominal size with ranges up to 25 bar for the measurement of gauge pressure. A reading of zero bar is atmospheric pressure.

This European Standard defines the fundamental and general terms to be used for pressure gauges.

This European Standard sets the technical and functional characteristics for all types of thermometers (electronic, mechanical, etc.) for equipping the means used for the transport, storage and distribution of chilled, frozen, deep-frozen/quick-frozen food and ice cream and for measuring the internal temperature of the products. It specifies the test methods which allows the verification of the equipment's conformity to suitability and performance requirements.

The present document sets the verification procedure for temperature recorders and thermometers for measuring the air and the products intended to equip the means used for the transport, storage and distribution of chilled, frozen, deep-frozen/quick-frozen food and ice cream and which comply with standards EN 12830 and EN 13485 (measurement classes and ranges).

This European Standard specifies the technical and functional characteristics ofair temperature recorders for equipping the means used for the transport, storage and distribution of chilled, frozen and deep-frozen/quick-frozen food and ice cream. It specifies the test methods which allow the determination of the equipment's conformity to suitability and performance requirements. It applies to the whole recorder-temperature sensor(s).

This European standard defines requirements of pressure gauges for inflation of tyre and their testing in accordance with 86/217/EEC Directive.  It establishes in the context of motor vehicles tyres, the minimum characteristics of the chain of measurement of mechanical apparatus intended to increase, inspect or adjust the pressure of tyres inflated by air or nitrogen.  This apparatus classified in four different categories are hereinafter referred to by generic term, "pressure gauges".