{"id":3402,"date":"2024-10-16T17:29:43","date_gmt":"2024-10-16T17:29:43","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-d2503-2007\/"},"modified":"2024-10-24T10:14:51","modified_gmt":"2024-10-24T10:14:51","slug":"astm-d2503-2007","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-d2503-2007\/","title":{"rendered":"ASTM-D2503 2007"},"content":{"rendered":"

ASTM D2503-92-Reapproved2007<\/h3>\n

Historical Standard: Standard Test Method for Relative Molecular Mass (Molecular Weight) of Hydrocarbons by Thermoelectric Measurement of Vapor Pressure<\/h4>\n
\n

ASTM D2503<\/h4>\n

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

1.1 This test method covers the determination of the average relative molecular mass (molecular weight) of hydrocarbon oils. It can be applied to petroleum fractions with molecular weights (relative molecular mass) up to 3000; however, the precision of this test method has not been established above 800 molecular weight (relative molecular mass). This test method should not be applied to oils having initial boiling points lower than 220\u00b0<\/span>C.<\/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. For specific hazard statements, 5.2.1, 5.2.3, and 5.2.3.<\/span><\/span><\/p>\n

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

hydrocarbons; molecular weight; osmometer; relative molecular mass; thermoelectric measurement; vapor pressure; Hydrocarbons; Molecular weight; Relative molecular mass; Vapor pressure (VPx)–petroleum products<\/p>\n

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

ICS Number Code 75.080 (Petroleum products in general)<\/p>\n

DOI:<\/strong> 10.1520\/D2503-92R07<\/p>\n<\/div>\n

PDF Catalog<\/h4>\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>\nSampling
Preparation and Calibration of Apparatus
Procedure <\/td>\n<\/tr>\n
3<\/td>\nCalculation
Report
Precision and Bias
Keywords
TABLE 1 <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

D2503-92(2007) Standard Test Method for Relative Molecular Mass (Molecular Weight) of Hydrocarbons by Thermoelectric Measurement of Vapor Pressure<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2007<\/td>\n3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":3403,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2637],"product_tag":[],"class_list":{"0":"post-3402","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\/3402","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\/3403"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=3402"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=3402"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=3402"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}