{"id":77421,"date":"2024-10-17T17:54:54","date_gmt":"2024-10-17T17:54:54","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-d7797-2012\/"},"modified":"2024-10-24T19:32:23","modified_gmt":"2024-10-24T19:32:23","slug":"astm-d7797-2012","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-d7797-2012\/","title":{"rendered":"ASTM-D7797 2012"},"content":{"rendered":"

ASTM D7797-12<\/h3>\n

Historical Standard: Test Method for Determination of the Fatty Acid Methyl Esters Content of Aviation Turbine Fuel Using Flow Analysis by Fourier Transform Infrared Spectroscopy \u2013 Rapid Screening Method<\/h4>\n
\n

ASTM D7797<\/h4>\n

Scope<\/strong><\/p>\n

\n

1.1 This test method specifies a rapid screening method using flow analysis by Fourier transform infrared (FA-FTIR) spectroscopy with partial least squares (PLS-1) processing for the determination of the fatty acid methyl ester (FAME) content of aviation turbine fuel (AVTUR), in the range of 20 to 150 mg\/kg.<\/p>\n<\/p><\/div>\n

\n Note 1<\/span>\u2014Specifications falling within the scope of this test method are: Specification D1655 and Defence Standard 91-91.<\/span>\n <\/div>\n
\n Note 2<\/span>\u2014This test method detects all FAME components, with peak IR absorbance at approximately 1749 cm-1<\/sup> and C8<\/span><\/sub> to C22<\/span><\/sub> molecules, as specified in standards such as Specification D6751 and EN 14214. The accuracy of the method is based on the molecular weight of C16 to C18 FAME species; the presence of other FAME species with different molecular weights could affect the accuracy.<\/span>\n <\/div>\n
\n Note 3<\/span>\u2014Additives such as antistatic agents, antioxidants and corrosion inhibitors are measured with the FAME by the FTIR spectrometer. However the effects of these additives are removed by the flow analysis processing.<\/span>\n <\/div>\n
\n Note 4<\/span>\u2014FAME concentrations from 150 mg\/kg to 500 mg\/kg, and below 20 mg\/kg can be measured but the precision could be affected.<\/span>\n <\/div>\n
\n

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.<\/p>\n<\/p><\/div>\n

\n

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.<\/i><\/p>\n<\/p><\/div>\n

Keywords<\/strong><\/p>\n

AVTUR; biodiesel in jet fuel; contamination; FAME; FTIR: FA-FTIR; methyl esters<\/p>\n

ICS Code<\/strong><\/p>\n

ICS Number Code 75.160.20 (Liquid fuels)<\/p>\n

DOI:<\/strong> 10.1520\/D7797-12<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

D7797-12 Test Method for Determination of the Fatty Acid Methyl Esters Content of Aviation Turbine Fuel Using Flow Analysis by Fourier Transform Infrared Spectroscopy – Rapid Screening Method<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2012<\/td>\n6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":77422,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1074,2637],"product_tag":[],"class_list":{"0":"post-77421","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-75-160-20","7":"product_cat-astm","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/77421","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/77422"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=77421"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=77421"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=77421"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}