{"id":261191,"date":"2024-10-19T17:18:17","date_gmt":"2024-10-19T17:18:17","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-180752018\/"},"modified":"2024-10-25T13:02:59","modified_gmt":"2024-10-25T13:02:59","slug":"bs-iso-180752018","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-180752018\/","title":{"rendered":"BS ISO 18075:2018"},"content":{"rendered":"<p>This document provides guidance for performing and validating the sequence of steady-state calculations leading to prediction, in all types of operating UO<sub>2<\/sub>-fuel commercial nuclear reactors, of:<\/p>\n<ul>\n<li>\n<p>reaction-rate spatial distributions;<\/p>\n<\/li>\n<li>\n<p>reactivity;<\/p>\n<\/li>\n<li>\n<p>change of nuclide compositions with time.<\/p>\n<\/li>\n<\/ul>\n<p>The document provides:<\/p>\n<ol style=\"list-style-type:lower-alpha\">\n<li>\n<p>guidance for the selection of computational methods;<\/p>\n<\/li>\n<li>\n<p>criteria for verification and validation of calculation methods used by reactor core analysts;<\/p>\n<\/li>\n<li>\n<p>criteria for evaluation of accuracy and range of applicability of data and methods;<\/p>\n<\/li>\n<li>\n<p>requirements for documentation of the preceding.<\/p>\n<\/li>\n<\/ol>\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 \/> 3.1 Terms  <\/td>\n<\/tr>\n<tr>\n<td><b>12<b><\/td>\n<td>3.2 Abbreviations <br \/> 4 Relation to other standards  <\/td>\n<\/tr>\n<tr>\n<td><b>13<b><\/td>\n<td>5 Methods of calculation <br \/> 5.1 General <br \/> 5.2 Conditions to be considered  <\/td>\n<\/tr>\n<tr>\n<td><b>14<b><\/td>\n<td>5.3 Fine-group cross-sections <br \/> 5.3.1 Basic data <br \/> 5.3.2 Preparation of fine-group cross-sections <br \/> 5.3.3 System dependent spectrum calculations <br \/> 5.3.4 Weighting function <br \/> 5.4 Preparation of broad-group libraries <br \/> 5.4.1 General  <\/td>\n<\/tr>\n<tr>\n<td><b>15<b><\/td>\n<td>5.4.2 Choice of cell and supercell <br \/> 5.4.3 Cell environment <br \/> 5.4.4 Calculation model  <\/td>\n<\/tr>\n<tr>\n<td><b>16<b><\/td>\n<td>5.5 Collapse to few-groups <br \/> 5.6 Calculation of reactivity, reaction rate, and neutron flux distributions <br \/> 5.6.1 Models  <\/td>\n<\/tr>\n<tr>\n<td><b>17<b><\/td>\n<td>5.6.2 Uncertainties and assumptions <br \/> 5.7 Calculation of reaction rates in reactor components  <\/td>\n<\/tr>\n<tr>\n<td><b>18<b><\/td>\n<td>5.8 Depletion calculations  <\/td>\n<\/tr>\n<tr>\n<td><b>19<b><\/td>\n<td>5.9 Common practices <br \/> 5.9.1 Pressurized water reactor (PWR) core physics method  <\/td>\n<\/tr>\n<tr>\n<td><b>20<b><\/td>\n<td>5.9.2 Boiling water reactor (BWR) core physics methods  <\/td>\n<\/tr>\n<tr>\n<td><b>21<b><\/td>\n<td>5.9.3 Liquid metal reactor (LMR) core physics methods  <\/td>\n<\/tr>\n<tr>\n<td><b>23<b><\/td>\n<td>5.9.4 Heavy water reactor HWR core physics methods  <\/td>\n<\/tr>\n<tr>\n<td><b>25<b><\/td>\n<td>5.9.5 High temperature gas cooled reactor (HTGR) core physics methods  <\/td>\n<\/tr>\n<tr>\n<td><b>26<b><\/td>\n<td>6 Verification and validation of the calculation system <br \/> 6.1 Overview <br \/> 6.2 Verification <br \/> 6.2.1 General <br \/> 6.2.2 Unit testing  <\/td>\n<\/tr>\n<tr>\n<td><b>27<b><\/td>\n<td>6.2.3 Integral testing <br \/> 6.3 Validation <br \/> 6.3.1 Unit testing  <\/td>\n<\/tr>\n<tr>\n<td><b>28<b><\/td>\n<td>6.3.2 Integral testing  <\/td>\n<\/tr>\n<tr>\n<td><b>29<b><\/td>\n<td>6.4 Biases and uncertainties <br \/> 7 Documentation  <\/td>\n<\/tr>\n<tr>\n<td><b>30<b><\/td>\n<td>8 Summary of requirements  <\/td>\n<\/tr>\n<tr>\n<td><b>31<b><\/td>\n<td>Bibliography  <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>Steady-state neutronics methods for power-reactor analysis<\/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>2018<\/td>\n<td>32<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":261196,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[462,2641],"product_tag":[],"class_list":{"0":"post-261191","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-27-120-10","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\/261191","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\/261196"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=261191"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=261191"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=261191"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}