{"id":77640,"date":"2024-10-17T18:02:29","date_gmt":"2024-10-17T18:02:29","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-d7504-2012-2\/"},"modified":"2024-10-24T19:33:29","modified_gmt":"2024-10-24T19:33:29","slug":"astm-d7504-2012-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-d7504-2012-2\/","title":{"rendered":"ASTM-D7504 2012"},"content":{"rendered":"<\/p>\n

1.1 This test method covers the determination of the total nonaromatic hydrocarbons and trace monocyclic aromatic hydrocarbons in toluene, mixed xylenes, p<\/span> -xylene, o<\/span> -xylene, ethylbenzene, benzene, and styrene by gas chromatography. The purity of toluene, mixed xylenes, p<\/span> -xylene, o<\/span> -xylene, ethylbenzene, benzene, and stryene can also be calculated. Similar test methods, using the internal standard calibration technique and the external standard calibration technique, are Test Methods D2360 , D3797 , D4492 , D5060 , D5135 , D5917 , and D6563 respectively.<\/p>\n

1.2 Total aliphatic hydrocarbons containing 1 through 10 carbon atoms (methane through decanes) can be detected by this test method at concentrations ranging from 0.0001 to 2.5000 weight %.<\/p>\n

1.2.1 A small amount of benzene in toluene, mixed xylenes, p<\/span> -xylene, o<\/span> -xylene, ethylbenzene, or styrene may not be distinguished from the non-aromatics and the concentrations are determined as a composite (see 6.1).<\/p>\n

1.3 Monocyclic aromatic hydrocarbon impurities containing 6 through 10 carbon atoms (benzene through C 10<\/sub> aromatics) can be detected by this test method at individual concentrations ranging from 0.0001 to 2.5000 weight %.<\/p>\n

1.4 In determining the conformance of the test results using this method to applicable specifications, results shall be rounded off in accordance with the rounding-off method of Practice E29 .<\/p>\n

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

1.6 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

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nScope
Referenced Documents <\/td>\n<\/tr>\n
2<\/td>\nTerminology
Summary of Test Method
Significance and Use
Interferences
Apparatus
Reagents and Materials
TABLE 1 <\/td>\n<\/tr>\n
3<\/td>\nHazards
Sampling
Preparation of Apparatus
Calibration
Procedure
Calculation or Interpretation of Results
Report
TABLE 2 <\/td>\n<\/tr>\n
4<\/td>\nPrecision and Bias
Quality Guidelines
Keywords <\/td>\n<\/tr>\n
5<\/td>\nFIG. 1 <\/td>\n<\/tr>\n
6<\/td>\nFIG. 2 <\/td>\n<\/tr>\n
7<\/td>\nFIG. 3 <\/td>\n<\/tr>\n
8<\/td>\nFIG. 4 <\/td>\n<\/tr>\n
9<\/td>\nFIG. 5
FIG. 6 <\/td>\n<\/tr>\n
10<\/td>\nFIG. 7
FIG. 8 <\/td>\n<\/tr>\n
11<\/td>\nTABLE 3
TABLE 4
TABLE 5
TABLE 6 <\/td>\n<\/tr>\n
12<\/td>\nTABLE 7
TABLE 8
TABLE 9
TABLE 10 <\/td>\n<\/tr>\n
13<\/td>\nTABLE 11
TABLE 12
TABLE 13 <\/td>\n<\/tr>\n
14<\/td>\nTABLE 14
TABLE 15 <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

D7504-12 Standard Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography and Effective Carbon Number<\/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>\n15<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":77641,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1014,2637],"product_tag":[],"class_list":{"0":"post-77640","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-71-080-15","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\/77640","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\/77641"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=77640"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=77640"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=77640"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}