{"id":362892,"date":"2024-10-20T01:42:36","date_gmt":"2024-10-20T01:42:36","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-19935-22020\/"},"modified":"2024-10-26T02:42:11","modified_gmt":"2024-10-26T02:42:11","slug":"bs-iso-19935-22020","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-19935-22020\/","title":{"rendered":"BS ISO 19935-2:2020"},"content":{"rendered":"<p>This document establishes a method for measurement of specific heat capacity, <i>c<\/i><sub>p<\/sub>, using temperature modulated differential scanning calorimetry.<\/p>\n<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>2<b><\/td>\n<td>National foreword  <\/td>\n<\/tr>\n<tr>\n<td><b>6<b><\/td>\n<td>Foreword  <\/td>\n<\/tr>\n<tr>\n<td><b>7<b><\/td>\n<td>Introduction  <\/td>\n<\/tr>\n<tr>\n<td><b>9<b><\/td>\n<td>1 Scope <br \/> 2 Normative references <br \/> 3 Terms and definitions <br \/> 4 Symbols and abbreviated terms <br \/> 4.1 Temperature modulation, T(t) <br \/> 4.2 Scanning rate <br \/> 4.3 Heat flow rate, \u03a6(t)  <\/td>\n<\/tr>\n<tr>\n<td><b>10<b><\/td>\n<td>5 Principles of determination of specific heat capacity with temperature modulated DSC <br \/> 5.1 General <br \/> 5.2 Specific heat capacity with no processes <br \/> 5.3 Reversing and non-reversing specific heat capacity <br \/> 5.4 Step scan method <br \/> 5.5 Multiple frequencies <br \/> 6 Apparatus and materials <br \/> 6.1 General <br \/> 6.2 Temperature control of the modulated differential scanning calorimeter  <\/td>\n<\/tr>\n<tr>\n<td><b>11<b><\/td>\n<td>7 Calibration <br \/> 7.1 General <br \/> 7.2 Calibration of modulation amplitude <br \/> 7.3 Calibration of phase <br \/> 8 Procedure <br \/> 8.1 General  <\/td>\n<\/tr>\n<tr>\n<td><b>12<b><\/td>\n<td>8.2 Calculation of the specific heat capacity <br \/> 8.3 Examples of the results <br \/> 8.3.1 Modulated heat flow rate and scanning rate of modulation  <\/td>\n<\/tr>\n<tr>\n<td><b>13<b><\/td>\n<td>8.3.2 Determination of specific heat capacity  <\/td>\n<\/tr>\n<tr>\n<td><b>14<b><\/td>\n<td>9 Precision and bias  <\/td>\n<\/tr>\n<tr>\n<td><b>15<b><\/td>\n<td>10 Test report  <\/td>\n<\/tr>\n<tr>\n<td><b>16<b><\/td>\n<td>Annex A (informative) Example of the cp values of polystyrene (PS)  <\/td>\n<\/tr>\n<tr>\n<td><b>18<b><\/td>\n<td>Annex B (informative) Example of the calibration constant K(\u03c9) determined with the literature values of \u03b1-Al2O3[3]  <\/td>\n<\/tr>\n<tr>\n<td><b>19<b><\/td>\n<td>Annex C (informative) Example of a reversing heat flow rate curve based on a modulated heat flow rate curve and a comparison with the specific heat capacity  <\/td>\n<\/tr>\n<tr>\n<td><b>20<b><\/td>\n<td>Annex D (informative) Example of determination of specific heat capacity based on a multifrequency modulated heat flow rate curve  <\/td>\n<\/tr>\n<tr>\n<td><b>22<b><\/td>\n<td>Bibliography  <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>Plastics. Temperature modulated DSC &#8211; Measurement of specific heat capacity <i>c<\/i><sub>p<\/sub><\/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\/bsi\/\"><b>BSI<\/b><\/a><\/td>\n<td>2020<\/td>\n<td>24<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":362901,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1177,2641],"product_tag":[],"class_list":{"0":"post-362892","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-83-080-01","7":"product_cat-bsi","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\/362892","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\/362901"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=362892"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=362892"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=362892"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}