{"id":38959,"date":"2024-10-17T05:33:14","date_gmt":"2024-10-17T05:33:14","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-c680-2008\/"},"modified":"2024-10-24T15:17:39","modified_gmt":"2024-10-24T15:17:39","slug":"astm-c680-2008","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-c680-2008\/","title":{"rendered":"ASTM-C680 2008"},"content":{"rendered":"<\/p>\n<p id=\"s00002\">1.1 This practice provides the algorithms and calculation methodologies for predicting the heat loss or gain and surface temperatures of certain thermal insulation systems that can attain one dimensional, steady- or quasi-steady-state heat transfer conditions in field operations.<\/p>\n<p id=\"s00003\">1.2 This practice is based on the assumption that the thermal insulation systems can be well defined in rectangular, cylindrical or spherical coordinate systems and that the insulation systems are composed of homogeneous, uniformly dimensioned materials that reduce heat flow between two different temperature conditions.<\/p>\n<p id=\"s00004\">1.3 Qualified personnel familiar with insulation-systems design and analysis should resolve the applicability of the methodologies to real systems. The range and quality of the physical and thermal property data of the materials comprising the thermal insulation system limit the calculation accuracy. Persons using this practice must have a knowledge of the practical application of heat transfer theory relating to thermal insulation materials and systems.<\/p>\n<p id=\"s00005\">1.4 The computer program that can be generated from the algorithms and computational methodologies defined in this practice is described in Section 7 of this practice. The computer program is intended for flat slab, pipe and hollow sphere insulation systems.<\/p>\n<p id=\"s00006\">1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.<\/p>\n<p id=\"s00007\">1.6 <span class=\"italic\">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<p><h4>PDF Catalog<\/h4>\n<table border=\"1px\" class=\"des-table\">\n<tr>\n<th>PDF Pages<\/th>\n<th>PDF Title<\/th>\n<\/tr>\n<tr>\n<td><b>1<b><\/td>\n<td>Scope <br \/> Referenced Documents <br \/> Terminology  <\/td>\n<\/tr>\n<tr>\n<td><b>2<b><\/td>\n<td>Summary of Practice <br \/> Significance and Use  <\/td>\n<\/tr>\n<tr>\n<td><b>3<b><\/td>\n<td>Method of Calculation  <\/td>\n<\/tr>\n<tr>\n<td><b>4<b><\/td>\n<td>FIG. 1   <\/td>\n<\/tr>\n<tr>\n<td><b>8<b><\/td>\n<td>Computer Program  <\/td>\n<\/tr>\n<tr>\n<td><b>9<b><\/td>\n<td>Report <br \/> Accuracy and Resolution <br \/> FIG. 2   <\/td>\n<\/tr>\n<tr>\n<td><b>10<b><\/td>\n<td>Precision and Bias <br \/> FIG. 3  <br \/> FIG. 4   <\/td>\n<\/tr>\n<tr>\n<td><b>11<b><\/td>\n<td>Keywords <br \/> A1. EQUATIONS DERIVED FROM THE NIST CIRCULAR <br \/> A1.1  <br \/> A1.2  <br \/> X1. APPLICATION OF PRACTICE C680 TO FIELD MEASUREMENTS <br \/> X1.1  <br \/> X1.2  <br \/> TABLE A1.1  <\/td>\n<\/tr>\n<tr>\n<td><b>12<b><\/td>\n<td>X1.3 Precision  <\/td>\n<\/tr>\n<tr>\n<td><b>14<b><\/td>\n<td>X2. COMMENTARY <br \/> X2.1 Introduction and History of Practice C680  <\/td>\n<\/tr>\n<tr>\n<td><b>15<b><\/td>\n<td>X2.2  <br \/> X2.3  <br \/> X2.4   <\/td>\n<\/tr>\n<tr>\n<td><b>16<b><\/td>\n<td>X3. PROGRAM SOURCE CODE LISTINGS <br \/> TABLE X3.1  <\/td>\n<\/tr>\n<tr>\n<td><b>19<b><\/td>\n<td>REFERENCES  <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>C680-08 Standard Practice for Estimate of the Heat Gain or Loss and the Surface Temperatures of Insulated Flat, Cylindrical, and Spherical  Systems by Use of Computer Programs<\/b><\/p>\n<table class=\"shortdes-table\" style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/astm\/\"><b>ASTM<\/b><\/a><\/td>\n<td>2008<\/td>\n<td>19<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":38960,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2637],"product_tag":[],"class_list":{"0":"post-38959","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\/38959","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\/38960"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=38959"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=38959"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=38959"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}