{"id":17508,"date":"2024-06-18T15:34:57","date_gmt":"2024-06-18T13:34:57","guid":{"rendered":"https:\/\/www.vsl.nl\/certificate-of-calibration-cgm\/"},"modified":"2024-09-25T13:22:23","modified_gmt":"2024-09-25T11:22:23","slug":"certificate-of-cgm","status":"publish","type":"page","link":"https:\/\/www.vsl.nl\/en\/about-vsl\/certificates\/certificate-of-cgm\/","title":{"rendered":"Certificate of CGM"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_section full_width=&#8221;stretch_row&#8221; content_placement=&#8221;middle&#8221; css=&#8221;.vc_custom_1668958376190{background-image: url(https:\/\/www.vsl.nl\/wp-content\/uploads\/2022\/11\/Lab-Foto-WEB-32.jpg?id=2224) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}&#8221; el_class=&#8221;main_header gradient_header dg-position-realtive&#8221;][vc_row equal_height=&#8221;yes&#8221; content_placement=&#8221;middle&#8221; el_class=&#8221;dg-header&#8211;small&#8221;][vc_column width=&#8221;2\/3&#8243; el_class=&#8221;dg-padding-none&#8221;][vc_column_text css=&#8221;.vc_custom_1727263331406{margin-bottom: 0px !important;padding-bottom: 0px !important;}&#8221; el_class=&#8221;text-white&#8221;]<\/p>\n<h1>Certificate of CGM<\/h1>\n<p>Here you will find an explanation about a VSL certificate issued for calibrated gas mixture.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/3&#8243;][\/vc_column][\/vc_row][\/vc_section][vc_section el_class=&#8221;dg-padding-none dg-certificate&#8211;page&#8221;][vc_row][vc_column width=&#8221;3\/4&#8243;][vc_raw_js]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[\/vc_raw_js][\/vc_column][vc_column width=&#8221;1\/4&#8243;][vc_column_text css=&#8221;.vc_custom_1718718015823{margin-bottom: 0px !important;padding-bottom: 0px !important;}&#8221; el_class=&#8221;dg-certificate&#8211;header&#8221;]<\/p>\n<h3>Certificate of Calibration<\/h3>\n<p>Number C2345701.01<br \/>\nPage 1 of 2[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=&#8221;dg-certificate&#8211;row&#8221;][vc_column width=&#8221;1\/6&#8243;][vc_column_text css=&#8221;.vc_custom_1718717593521{margin-bottom: 0px !important;}&#8221;]Submitted[\/vc_column_text][vc_btn title=&#8221;&#8221; align=&#8221;left&#8221; i_icon_fontawesome=&#8221;fas fa-info&#8221; css=&#8221;.vc_custom_1722500334455{margin-bottom: 0px !important;}&#8221; add_icon=&#8221;true&#8221; el_class=&#8221;dg-info&#8211;button dg-certificate&#8211;text&#8221; el_id=&#8221;submitted&#8221;][\/vc_column][vc_column width=&#8221;5\/6&#8243; el_id=&#8221;submitted-row&#8221; el_class=&#8221;dg-certificate&#8211;column&#8221;][vc_column_text css=&#8221;.vc_custom_1718717626270{margin-bottom: 0px !important;}&#8221;]A cylinder with number 123456.<br \/>\nThe cylinder contains a calibrated gas mixture (CGM) of sulfur dioxide in nitrogen.<br \/>\nThe cylinder pressure after calibration is 14.5 MPa. Cylinder outlet conforms to UNI<br \/>\n5 specifications.[\/vc_column_text][vc_column_text css=&#8221;&#8221; el_class=&#8221;dg-certificate&#8211;information&#8221; el_id=&#8221;submitted-info&#8221;]This section contains a description about the submitted cylinder and its components. The cylinder number is identical to the number that is stamped into the wall of the cylinder, and this is the only connection between the certificate and the gas cilinder. The contents of the cylinder are mentioned, together with the gas pressure. Finally, the valve outlet type of the cylinder is specified.[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=&#8221;dg-certificate&#8211;row&#8221;][vc_column width=&#8221;1\/6&#8243;][vc_column_text css=&#8221;.vc_custom_1718717636049{margin-bottom: 0px !important;}&#8221;]Calibration method[\/vc_column_text][vc_btn title=&#8221;&#8221; align=&#8221;left&#8221; i_icon_fontawesome=&#8221;fas fa-info&#8221; css=&#8221;.vc_custom_1718717655181{margin-bottom: 0px !important;}&#8221; add_icon=&#8221;true&#8221; el_class=&#8221;dg-info&#8211;button dg-certificate&#8211;text&#8221; el_id=&#8221;method&#8221;][\/vc_column][vc_column width=&#8221;5\/6&#8243; el_class=&#8221;dg-certificate&#8211;column&#8221; el_id=&#8221;date-row&#8221;][vc_column_text css=&#8221;.vc_custom_1722501335934{margin-bottom: 0px !important;}&#8221;]Composition determined in accordance with ISO 6143:2001 (Gas analysis \u2013 Comparison methods for determining and checking the composition of calibration gas mixtures) using Non Dispersive InfraRed spectroscopy.[\/vc_column_text][vc_column_text css=&#8221;&#8221; el_class=&#8221;dg-certificate&#8211;information&#8221; el_id=&#8221;method-info&#8221;]This section describes the analytical method(s) used for the calibration of the composition.[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=&#8221;dg-certificate&#8211;row&#8221;][vc_column width=&#8221;1\/6&#8243;][vc_column_text css=&#8221;.vc_custom_1718717864636{margin-bottom: 0px !important;}&#8221;]Date of calibration[\/vc_column_text][vc_btn title=&#8221;&#8221; align=&#8221;left&#8221; i_icon_fontawesome=&#8221;fas fa-info&#8221; css=&#8221;.vc_custom_1718718093699{margin-bottom: 0px !important;}&#8221; add_icon=&#8221;true&#8221; el_class=&#8221;dg-info&#8211;button dg-certificate&#8211;text&#8221; el_id=&#8221;date&#8221;][\/vc_column][vc_column width=&#8221;5\/6&#8243; el_id=&#8221;calibration-row&#8221; el_class=&#8221;dg-certificate&#8211;column&#8221;][vc_column_text css=&#8221;.vc_custom_1718718277501{margin-bottom: 0px !important;}&#8221; el_class=&#8221;dg-certificate&#8211;table&#8221;]12 September 2023 until 14 September 2023.[\/vc_column_text][vc_column_text css=&#8221;&#8221; el_class=&#8221;dg-certificate&#8211;information&#8221; el_id=&#8221;date-info&#8221;]Here, the date or period of calibration is mentioned.[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=&#8221;dg-certificate&#8211;row&#8221;][vc_column width=&#8221;1\/6&#8243;][vc_column_text css=&#8221;.vc_custom_1718717870756{margin-bottom: 0px !important;}&#8221;]Result[\/vc_column_text][vc_btn title=&#8221;&#8221; align=&#8221;left&#8221; i_icon_fontawesome=&#8221;fas fa-info&#8221; css=&#8221;.vc_custom_1718718075532{margin-bottom: 0px !important;}&#8221; add_icon=&#8221;true&#8221; el_class=&#8221;dg-info&#8211;button dg-certificate&#8211;text&#8221; el_id=&#8221;result&#8221;][\/vc_column][vc_column width=&#8221;5\/6&#8243; el_id=&#8221;result-row&#8221; el_class=&#8221;dg-certificate&#8211;column&#8221;][vc_column_text css=&#8221;.vc_custom_1718721392140{margin-bottom: 0px !important;}&#8221; el_class=&#8221;dg-certificate&#8211;table&#8221;]<\/p>\n<table>\n<tbody>\n<tr>\n<td style=\"text-align: center;\"><strong>Component<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>Amount fraction <\/strong><br \/>\n<strong>[mol\/mol]<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>Uncertainty <\/strong><br \/>\n<strong>[mol\/mol]<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">sulfur dioxide<\/td>\n<td style=\"text-align: center;\">84.8 \u00d7 10<span class=\"superscript\">-6<\/span><\/td>\n<td style=\"text-align: center;\">\u00a00.7 \u00d7 10<span class=\"superscript\">-6<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The reported uncertainty of measurement is based on the standard uncertainty<br \/>\nmultiplied by a coverage factor <em>k<\/em> = 2, which for a normal distribution corresponds<br \/>\nto a coverage probability of approximately 95 %. The standard uncertainty has<br \/>\nbeen determined in accordance with the GUM \u2018Evaluation of measurement data &#8211;<br \/>\nGuide to the Expression of Uncertainty in Measurement\u2019.[\/vc_column_text][vc_column_text css=&#8221;&#8221; el_class=&#8221;dg-certificate&#8211;information&#8221; el_id=&#8221;result-info&#8221;]The amount fraction of each component with its uncertainty is listed here or on a separate page. The section below gives a description of the stated measurement uncertainty. All contributing factors to the uncertainty of the measurement are combined into the standard uncertainty in accordance with GUM \u2018Evaluation of measurement data &#8211; Guide to the Expression of Uncertainty in Measurement\u2019. The measurement uncertainty is provided as an expanded uncertainty.[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=&#8221;dg-certificate&#8211;row&#8221;][vc_column width=&#8221;1\/6&#8243;][vc_column_text css=&#8221;.vc_custom_1718717878195{margin-bottom: 0px !important;}&#8221;]Traceability[\/vc_column_text][vc_btn title=&#8221;&#8221; align=&#8221;left&#8221; i_icon_fontawesome=&#8221;fas fa-info&#8221; css=&#8221;.vc_custom_1718718083383{margin-bottom: 0px !important;}&#8221; add_icon=&#8221;true&#8221; el_class=&#8221;dg-info&#8211;button dg-certificate&#8211;text&#8221; el_id=&#8221;traceability&#8221;][\/vc_column][vc_column width=&#8221;5\/6&#8243; el_id=&#8221;traceability-row&#8221; el_class=&#8221;dg-certificate&#8211;column&#8221;][vc_column_text css=&#8221;.vc_custom_1718718163576{margin-bottom: 0px !important;}&#8221;]The results of the calibration services are traceable to primary and\/or (inter)nationally accepted measurement standards realised by VSL.[\/vc_column_text][vc_column_text css=&#8221;&#8221; el_class=&#8221;dg-certificate&#8211;information&#8221; el_id=&#8221;traceability-info&#8221;]The results on this certificate are traceable to VSL Primary Standards. This means that the result is related (traceable) to VSL\u2019s reference standards. More information is given on the final page.[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=&#8221;dg-certificate&#8211;row&#8221;][vc_column width=&#8221;1\/6&#8243;][vc_btn title=&#8221;&#8221; align=&#8221;left&#8221; i_icon_fontawesome=&#8221;fas fa-info&#8221; css=&#8221;.vc_custom_1710862284323{margin-bottom: 0px !important;}&#8221; add_icon=&#8221;true&#8221; el_class=&#8221;dg-info&#8211;button dg-certificate&#8211;text first-button&#8221; el_id=&#8221;signature&#8221;][\/vc_column][vc_column width=&#8221;5\/6&#8243; el_id=&#8221;signature-row&#8221; el_class=&#8221;dg-certificate&#8211;column&#8221;][vc_column_text css=&#8221;.vc_custom_1718718032236{margin-bottom: 0px !important;}&#8221;]Delft, 27 September 2023<\/p>\n<p>On behalf of VSL,<br \/>\nThe Certificate Committee[\/vc_column_text][vc_column_text el_class=&#8221;dg-certificate&#8211;information&#8221; el_id=&#8221;signature-info&#8221;]All certificates contain an electronic signature to ensure authenticity. The signature is an electronic seal on the document that prohibits making alterations. Any alteration breaks this seal and is shown in the document. More information about the electronic signature can be found <a href=\"https:\/\/www.vsl.nl\/en\/about-vsl\/quality\/\">here<\/a>.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/3&#8243;][vc_column_text el_class=&#8221;dg-certificate&#8211;footer&#8221;]<strong>VSL B.V.<\/strong><br \/>\nThijsseweg 11, 2629 JA Delft (NL)<br \/>\nT +31152691500<br \/>\nI www.vsl.nl[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/3&#8243;][vc_column_text el_class=&#8221;dg-certificate&#8211;footer&#8221;]This certificate is electronically signed and<br \/>\nsealed. This can be verified on<br \/>\n<a href=\"http:\/\/www.vsl.nl\/en\/digital-certificates\">www.vsl.nl\/en\/digital-certificates<\/a><\/p>\n<p>The measurement results presented in this<br \/>\ncertificate only relate to the standard(s) as<br \/>\ndescribed in this certificate.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/3&#8243;][vc_column_text el_class=&#8221;dg-certificate&#8211;footer&#8221;]This certificate is issued under the provision that no liability is accepted, and that the applicant gives warranty for each responsibility against third parties.<\/p>\n<p>This document may be freely distributed, but always in its entirety.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/3&#8243;][\/vc_column][vc_column width=&#8221;1\/3&#8243;][\/vc_column][vc_column width=&#8221;1\/3&#8243;][vc_column_text el_class=&#8221;dg-certificate&#8211;footer-version&#8221;]version 28[\/vc_column_text][\/vc_column][\/vc_row][\/vc_section][vc_section el_class=&#8221;dg-padding-none dg-certificate&#8211;page&#8221;][vc_row][vc_column width=&#8221;3\/4&#8243;][\/vc_column][vc_column width=&#8221;1\/4&#8243; el_class=&#8221;dg-padding-small-bottom&#8221;][vc_column_text css=&#8221;.vc_custom_1718718385027{margin-bottom: 0px !important;padding-bottom: 0px !important;}&#8221; el_class=&#8221;dg-certificate&#8211;header&#8221;]<\/p>\n<h3>Certificate of Calibration<\/h3>\n<p>Number C2345701.01<br \/>\nPage 2 of 2[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_btn title=&#8221;&#8221; align=&#8221;left&#8221; i_icon_fontawesome=&#8221;fas fa-info&#8221; css=&#8221;.vc_custom_1710862300147{margin-bottom: 0px !important;}&#8221; add_icon=&#8221;true&#8221; el_class=&#8221;dg-info&#8211;button dg-certificate&#8211;text no-sidebar&#8221; el_id=&#8221;accreditation&#8221;][vc_row_inner el_class=&#8221;dg-padding-small-bottom&#8221;][vc_column_inner el_class=&#8221;dg-certificate&#8211;information&#8221; el_id=&#8221;accreditation-info&#8221;][vc_column_text css=&#8221;.vc_custom_1710932239152{margin-bottom: 0px !important;}&#8221;]The final page contains information about the accreditation of VSL.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner el_class=&#8221;dg-certificate&#8211;row&#8221;][vc_column_inner el_class=&#8221;dg-certificate&#8211;column&#8221; el_id=&#8221;accreditation-row&#8221;][vc_column_text]The reported results are consistent with the national designation of VSL, its international acceptance under the CIPM MRA and international accreditation (ILAC\/RvA) as mentioned on this page. If identified, only the noted designation or accreditation is valid.<\/p>\n<p>[1] The reported content in this certificate is traceable to the National (Primary) Standards of The Netherlands, which realize units of measurement according to the International System of Units (SI). Measurement traceability is realized according to ILAC policy on Metrological Traceability of Measurement results (ILAC-P10:07\/2020) and Acceptable Traceability (RvA-T018-NL\/UK, article 3.1).[\/vc_column_text][vc_single_image image=&#8221;1209&#8243; img_size=&#8221;medium&#8221; alignment=&#8221;center&#8221; image_hovers=&#8221;false&#8221; el_class=&#8221;dg-certificate&#8211;image&#8221;][vc_column_text]<em>Van Swinden Laboratorium (VSL) is designated by law as the National Metrology Institute (NMI) of the Netherlands. As such, it provides direct traceability of measurement results to internationally accepted measurement standards. VSL is a signatory member of the Mutual Recognition Arrangement (MRA) of the International Committee of Weights and Measures (CIPM). The existence of mutual confidence in product specifications and product control is of fundamental importance in order to fulfill international, harmonized legislation on trade, quality, health, safety, and the environment. In this respect, standardized and equivalent measurement units and traceability to internationally accepted standards are essential. More information can be found at <a href=\"https:\/\/www.vsl.nl\/en\/\">https:\/\/www.vsl.nl\/<\/a> .<\/em><\/p>\n<p>[2] The reported content in this certificate is consistent with the Calibration and Measurement Capability represented in the Key Comparison Database (KCDB) as part of the Mutual Recognition Arrangement (MRA) of the International Committee of Weights and Measures (CIPM).[\/vc_column_text][vc_single_image image=&#8221;11724&#8243; img_size=&#8221;medium&#8221; alignment=&#8221;center&#8221; image_hovers=&#8221;false&#8221; el_class=&#8221;dg-certificate&#8211;image&#8221;][vc_column_text]<em>This certificate is consistent with the calibration and measurement capabilities (CMCs) that are included in Appendix C of the Mutual Recognition Arrangement (CIPM MRA) drawn up by the International Committee for Weights and Measures (CIPM). Under the CIPM MRA, all participating institutes recognize the validity of each other\u2019s calibration and measurement certificates for the quantities, ranges and measurement uncertainties specified in the KCDB (for details <a href=\"https:\/\/www.bipm.org\/kcdb\/\" target=\"_blank\" rel=\"noopener\">https:\/\/www.bipm.org\/kcdb\/)<\/a>. The \u201cCIPM MRA Logo\u201d and this statement attest only to the measurement(s) applied for determining the certified values on the certificate.<\/em><\/p>\n<p>[3] The reported content in this certificate is consistent with the RvA scope of accreditation of VSL with identification P002 for producing reference materials against the requirements as laid down in<br \/>\nISO 17034:2016 and the relevant requirements of the ISO\/IEC 17025:2017.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner][vc_column_inner width=&#8221;1\/4&#8243;][\/vc_column_inner][vc_column_inner width=&#8221;1\/4&#8243;][vc_single_image image=&#8221;11728&#8243; img_size=&#8221;medium&#8221; alignment=&#8221;center&#8221; image_hovers=&#8221;false&#8221; el_class=&#8221;dg-certificate&#8211;image&#8221;][\/vc_column_inner][vc_column_inner width=&#8221;1\/4&#8243;][vc_single_image image=&#8221;6120&#8243; img_size=&#8221;medium&#8221; alignment=&#8221;center&#8221; image_hovers=&#8221;false&#8221; el_class=&#8221;dg-certificate&#8211;image&#8221;][\/vc_column_inner][vc_column_inner width=&#8221;1\/4&#8243;][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text el_class=&#8221;dg-certificate&#8211;footer&#8221;]<\/p>\n<p style=\"text-align: center;\"><em>The scope can be verified on <a href=\"https:\/\/www.rva.nl\/\">https:\/\/www.rva.nl\/<\/a>. RvA is signatory of the EA MLA and ILAC MRA.<\/em><\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][\/vc_section]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Here you will find an explanation about a VSL certificate issued for calibrated gas mixture.<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":17752,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[93],"tags":[],"class_list":["post-17508","page","type-page","status-publish","hentry","category-certificate","description-off"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Certificate of CGM - VSL<\/title>\n<meta name=\"robots\" content=\"noindex, nofollow\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Certificate of CGM - 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