{"id":52442,"date":"2024-10-17T09:04:09","date_gmt":"2024-10-17T09:04:09","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-d2268-2003\/"},"modified":"2024-10-24T16:46:35","modified_gmt":"2024-10-24T16:46:35","slug":"astm-d2268-2003","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-d2268-2003\/","title":{"rendered":"ASTM-D2268 2003"},"content":{"rendered":"

ASTM D2268-93-e1-Reapproved2003<\/h3>\n

Historical Standard: Standard Test Method for Analysis of High-Purity n<\/i>-Heptane and Iso<\/i>octane by Capillary Gas Chromatography<\/h4>\n
\n

ASTM D2268<\/h4>\n

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

1.1 This test method provides for the analysis of high-purity (greater than 99.5 % by volume) n<\/i>-heptane and iso<\/i>octane (2,2,4-trimethylpentane), which are used as primary reference standards in determining the octane number of a fuel. Individual compounds present in concentrations of less than 0.01 % can be detected. Columns specified by this test method may not allow separation of all impurities in reference fuels.<\/p>\n

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.<\/p>\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

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

ASTM knock test reference fuels; capillary column; gas chromatography; iso<\/i>octane; n<\/i>-heptane<\/p>\n

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

ICS Number Code n\/a<\/p>\n

DOI:<\/strong> 10.1520\/D2268-93R03E01<\/p>\n<\/div>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nScope
Summary of Test Method
Significance and Use
Apparatus
Reagents and Materials <\/td>\n<\/tr>\n
2<\/td>\nPreparation of Resolving Column
Sample Preparation
Procedure
Calculation
FIG. 1 <\/td>\n<\/tr>\n
3<\/td>\nPrecision and Bias
FIG. 2
TABLE 1
TABLE 2 <\/td>\n<\/tr>\n
4<\/td>\nKeywords
TABLE 3 <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

D2268-93(2003)e1 Standard Test Method for Analysis of High-Purity n<\/i>-Heptane and Iso<\/i>octane by Capillary Gas Chromatography<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2003<\/td>\n4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":52443,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2637],"product_tag":[],"class_list":{"0":"post-52442","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-astm","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/52442","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\/52443"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=52442"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=52442"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=52442"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}