{"id":76635,"date":"2024-10-17T17:39:32","date_gmt":"2024-10-17T17:39:32","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-d7591\/"},"modified":"2024-10-24T19:28:10","modified_gmt":"2024-10-24T19:28:10","slug":"astm-d7591","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-d7591\/","title":{"rendered":"ASTM-D7591"},"content":{"rendered":"

ASTM D7591-12<\/h3>\n

Historical Standard: Standard Test Method for Determination of Free and Total Glycerin in Biodiesel Blends by Anion Exchange Chromatography<\/h4>\n
\n

ASTM D7591<\/h4>\n

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

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.<\/p>\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

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.<\/span><\/p>\n

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

biodiesel blends; free glycerin; glycerin; ion chromatography; total glycerin<\/p>\n

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

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

DOI:<\/strong> 10.1520\/D7591-12<\/p>\n<\/div>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nScope
Referenced Documents
Terminology
Summary of Test Method
Significance and Use <\/td>\n<\/tr>\n
2<\/td>\nInterferences
Apparatus
Reagents and Materials
FIG. 1 <\/td>\n<\/tr>\n
3<\/td>\nPreparation of Standard Solutions
Calibration
TABLE 1 <\/td>\n<\/tr>\n
4<\/td>\nProcedure
FIG. 2 <\/td>\n<\/tr>\n
5<\/td>\nCalculation
Report <\/td>\n<\/tr>\n
6<\/td>\nQuality Control
Precision and Bias
Keywords
TABLE 2 <\/td>\n<\/tr>\n
7<\/td>\nX1. QUALITY CONTROL
X1.1
X1.2
X1.3
X1.4
X1.5
TABLE 3 <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

D7591-12 Standard Test Method for Determination of Free and Total Glycerin in Biodiesel Blends by Anion Exchange 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>\n2012<\/td>\n7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":76636,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1074,2637],"product_tag":[],"class_list":{"0":"post-76635","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\/76635","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\/76636"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=76635"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=76635"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=76635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}