{"id":302101,"date":"2024-10-19T20:38:01","date_gmt":"2024-10-19T20:38:01","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-pd-iso-tr-204612000\/"},"modified":"2024-10-25T18:08:22","modified_gmt":"2024-10-25T18:08:22","slug":"bsi-pd-iso-tr-204612000","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-pd-iso-tr-204612000\/","title":{"rendered":"BSI PD ISO\/TR 20461:2000"},"content":{"rendered":"<p>This Technical Report gives the detailed evaluation of uncertainty for volume measurements according to the <i>Guide to the Expression of Uncertainty in Measurement<\/i> (GUM) [1]. It uses the gravimetric method specified in ISO&nbsp;8655-6[2] as the reference method for calibrating piston-operated volumetric apparatus. It has been arranged in paragraphs to facilitate direct access to different aspects of this kind of evaluation as follows:<\/p>\n<ul>\n<li>\n<p>modelling the measurement by describing the physical equations necessary to calculate the volume using the gravimetric method of measurement;<\/p>\n<\/li>\n<li>\n<p>determination of the standard uncertainty of measurement associated with the volume <i>V<\/i><sub>20<\/sub> by describing the calculation procedure according to the GUM;<\/p>\n<\/li>\n<li>\n<p>determination of the sensitivity coefficients with an example of the calculation of all sensitivity coefficients by using complete equations, approximations of equations and by giving numerical values for standard conditions;<\/p>\n<\/li>\n<li>\n<p>determination of the standard uncertainty associated with the volume delivered by a piston-operated volumetric apparatus giving the combination of the standard uncertainty associated with the volume <i>V<\/i><sub>20<\/sub> measured using the gravimetric measuring system and the experimental standard deviation associated with the volume delivered by the apparatus;<\/p>\n<\/li>\n<li>\n<p>determination of the standard uncertainties of measurement with a brief insight into the calculation of uncertainties of measuring devices according to GUM;<\/p>\n<\/li>\n<li>\n<p>determination of the expanded uncertainty of measurement associated with volume <i>V<\/i><sub>20<\/sub>;<\/p>\n<\/li>\n<li>\n<p>example of the determination of the uncertainty for volume measurements.<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p><b>Determination of uncertainty for volume measurements made using the gravimetric method<\/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>2012<\/td>\n<td>18<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":302105,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-302101","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","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\/302101","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\/302105"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=302101"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=302101"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=302101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}