Tečni naftni proizvodi — Napon pare — Deo 2: Određivanje apsolutnog pritiska (AVP) između 40 C i 100 C

Liquid petroleum products - Vapour pressure - Part 2: Determination of absolute pressure (AVP) between 40 C and 100 C

Ovaj standard utvrđuje metodu za određivanje apsolutnog napona pare tečnih naftnih proizvoda na povišenim temperaturama. Uslovi koji su primenjeni u ispitivanju opisanom u ovom standardu su odnos pare prema tečnosti 3 : 2 i početna injektovana temperatura ispitivanja od 37,8 C ili 30 C. Opisana metoda pogodna je za ispitivanje vazduhom zasićenih uzoraka koji trpe napon pare zasićen vazduhom između 9 kPa i 500 kPa i pri temperaturi od 40 °C do 100 °C.

petroleum products at elevated temperatures. The conditions used in the test described in this standard are a vapour to liquid ratio of 3:2 and an initial injection temperature of 37,8 °C or 30,0 °C. The method described is suitable for testing air-saturated samples that exert an air-saturated vapour pressure of between 9 kPa and 500 kPa at temperatures between 40 °C and 100 °C. This European Standard is applicable to fuels containing oxygenated compounds up to the limits stated in the relevant EC Directive 85/536/EEC [3]. NOTE 1 If a sample injection is into a test chamber which is raised to 37,8 °C and the vapour to liquid ratio is 4:1, the initial measurement corresponds with the measurement in Part 1 of this standard. NOTE 2 For the purposes of this European Standard, the term % (V/V) is used to represent the volume fraction. WARNING - Use of this standard may involve hazardous materials, operations and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.

benzin, naftni proizvodi, tečna goriva, vazduh, napon pare, napon zasićene pare, merenje pritiska (tečnosti), fizičko-hemijske metode, uslovi ispitivanja, pritisak, temperatura