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Standard Test Method for Determination of Free and Total Glycerin in Biodiesel Blends by Anion Exchange Chromatography
Automaticky preložený názov:
Štandardná skúšobná metóda pre stanovenie voľného a celkového Glycerín v zmesiach bionafty aniontoměničovou chromatografiou
NORMA vydaná dňa 1.1.2012
Označenie normy: ASTM D7591-12
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.1.2012
Kód tovaru: NS-38785
Počet strán: 7
Približná hmotnosť: 21 g (0.05 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
biodiesel blends, free glycerin, glycerin, ion chromatography, total glycerin, ICS Number Code 75.160.20 (Liquid fuels)
Significance and Use | ||||||||||||||||||
Petroleum-based diesel may be blended with biodiesel. High levels of free glycerin in biodiesel can cause injector deposits (“gel effect”), as well as clogging fuel systems. High levels of unreacted glycerides can cause injector deposits and can adversely affect cold weather operation and filter plugging. |
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1. Scope | ||||||||||||||||||
1.1 This test method covers and describes an anion exchange chromatography procedure for determining free and total glycerin content of biodiesel (B100) and blends (B0 to B20) with diesel fuel oils defined by Specification D975 Grades 1-D, 2-D, and low sulfur 1-D and 2-D and Specification D6751 (for B100 feedstocks). It is intended for the analysis of biodiesel and blend samples containing between 0.5 to 50 mg/kg glycerin. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||||||||||||||||
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