{"id":292001,"date":"2024-10-19T19:49:48","date_gmt":"2024-10-19T19:49:48","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-7118-21989\/"},"modified":"2024-10-25T16:53:43","modified_gmt":"2024-10-25T16:53:43","slug":"bs-7118-21989","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-7118-21989\/","title":{"rendered":"BS 7118-2:1989"},"content":{"rendered":"<p>This part of ISO 7066 describes the procedures for fitting a quadratic, cubic or higher degree polynomial expression to a non-linear<sup>2)<\/sup> set of calibration data, using the least-squares criterion, and of assessing the uncertainty associated with the resulting calibration curve. It considers only the use of polynomials with powers which are integers.<\/p>\n<p>Because it is generally not practicable to carry out this type of curve fitting and assessment of uncertainty without using a computer, it is assumed in this part of ISO 7066 that the user has access to one. In many cases it will be possible to use standard routines available on most computers; as an alternative the FORTRAN program listed in Annex C may be used.<\/p>\n<p>Examples of the use of these methods are given in Annex D.<\/p>\n<p>Extrapolation beyond the range of the data is not permitted.<\/p>\n<p>Annex A, Annex B, Annex C, Annex D and Annex E do not form integral parts of this part of ISO 7066.<\/p>\n<p>Procedures for fitting a quadratic, cubic or higher degree polynomial expression to a non-linear set of calibration data using the least squares criterion and assessing the uncertainty associated with the resulting calibration curve.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Measurement of fluid flow: assessment of uncertainty in the calibration and use of flow measurement devices &#8211; Non-linear calibration relationships<\/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>1989<\/td>\n<td>32<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":292006,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[263,2641],"product_tag":[],"class_list":{"0":"post-292001","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-17-120-01","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\/292001","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\/292006"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=292001"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=292001"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=292001"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}