et

lähtetingimused

1 plural substantive

Terminological databases

Metroloogia terminibaas

ID 573062 Last modified 07.07.2026
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Domain Standardisation - Metrologymeasuring procedures
  • gaasi või vedeliku kindlaksmääratud muundatud tingimused (temperatuur 273,15 K + 15 K rõhu 1,013 25 Pa korral)
  • fikseeritud tingimused, millele gaasimaht teisendatakse, nt gaasi põhitemperatuur 273,15 K pluss 15 K gaasi põhirõhu 1013,25 mbar juures
  • tingimuste kindlaksmääratud väärtused, mille suhtes vedelikukoguse mõõdised muudetakse (näiteks: vedeliku temperatuur ja -rõhk)
  • fixed conditions to which a volume of gas or fluid is converted (base temperature 273,15 K + 15 K at base pressure of 1,013 25 Pa)
  • specified values of the conditions to which the measured quantity of liquid is converted (example: base temperature and base pressure of the liquid)
  • fixed conditions used to express the volume of gas independently of the measurement conditions
  • fixed conditions used to express the volume of gas independently of the metering conditions and the superior calorific value
põhitingimused preferred
Usage examples
  • Gaasi mahu teisendamise põhitingimused on nt temperatuur 273,15 K ja absoluutrõhk 1,013 25 bar või temperatuur 288,15 K ja absoluutrõhk 1,013 25 bar.
Good to know
  • Põhitingimusi, mis viitavad ainult mõõdetava vedeliku mahule, ei tohiks segi ajada "normitud talitlustingimustega" ja "tugitingimustega", mida kohaldatakse koguste mõõtmisel.
baastingimused
base conditions
Usage examples
  • Base conditions to express the volume of gas are, for example, temperature of 273,15 K and absolute pressure of 1,013 25 bar or temperature of 288,15 K and absolute pressure of 1,013 25 bar.
Good to know
  • Base conditions (which refer only to the volume of liquid to be measured or indicated)should not be confused with the "rated operating conditions" and "reference conditions" which applyto influence quantities.

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