SIST EN ISO 6145-4:2008

Oznaka standarda: SIST EN ISO 6145-4:2008
Koda projekta: CSN21051
Organizacija: SIST
Naslov (angleški): Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 4: Continuous syringe injection method (ISO 6145-4:2004)
Naslov (slovenski): Analiza plinov - Priprava kalibracijske plinske zmesi z uporabo dinamičnih volumetričnih metod. - 4. del: Metoda s kontinuiranim injekcijskim vbrizgavanjem (ISO 6145-4:2004)
Če kupite standardizacijski dokument v .pdf formatu prek spletne prodaje, vam nudimo 20% popust pri spodnji ceni brez DDV. Cenik SIST
Dokumenti
Ime Jezik Status Cena Dodaj v košarico
SIST EN ISO 6145-4:2008 angleški jezik Active SIST-F: 59.40 EUR
PDF
Papir
Tehnični odbor: NAD - Naftni proizvodi, maziva in sorodni proizvodi
ICS: 71.040.40
Status: Objavljen
Objavljen: 01-okt-2008
Refer. št. objave: Sporočila 2008-10
Področje projekta (angleško): This part of ISO 6145 specifies a method for continuous production of calibration gas mixtures, containing two or more components, from pure gases or other gas mixtures by continuous injection of the calibration component(s) into a complementary gas stream by means of a syringe. If pre-mixed gases are used instead of pure gases (see Annex A), much lower volume fractions can be obtained. The volume flow rates, from which the volume fractions are determined, can be calculated from the individual flow rates and can be independently measured by a suitable method given in ISO 6145-1. The merits of the method are that a substantial quantity of the gas mixture can be prepared on a continuous basis and that multi-component mixtures can be prepared almost as readily as binary mixtures if the appropriate number of syringes is utilized, or if the syringe already contains a multi-component mixture of known composition. This method also provides a convenient means for increasing the volume fraction of the calibration component in the mixture in small steps. It is therefore a useful method for evaluation of other characteristics of gas analysers, such as minimum detection limit and dead zone, as well as accuracy. The relative expanded uncertainty in the volume fraction obtainable for a binary mixture (at a coverage factor of 2) is 5 % and the range of applicability is 10-5 to 10-2.
Povezava na standarde
Povezava Ime Datum
Nadomešča SIST ISO 6145-4:1995 - Analiza plinov - Priprava kalibrirnih plinskih zmesi - Dinamične volumetrijske metode - 4. del: Metoda z zveznim vbrizgavanjem 01-okt-2008


• Slovenski standardi SIST s cenovnim razredom AC so popravki standardov in so v večini primerov brezplačni.

• Slovenski standardi SIST s cenovnim razredom AP so privzeti tuji standardi, katerih sestavni del je izvirni standard, ki ga moramo pridobiti pri izdajatelju v tujini. Naročilo pošljite na: prodaja@sist.si.

Najbolje prodajani standardi