{"id":264786,"date":"2024-10-19T17:39:27","date_gmt":"2024-10-19T17:39:27","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-142912012\/"},"modified":"2024-10-25T13:33:09","modified_gmt":"2024-10-25T13:33:09","slug":"bs-iso-142912012","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-142912012\/","title":{"rendered":"BS ISO 14291:2012"},"content":{"rendered":"<p>This International Standard defines terms relevant to quadrupole mass spectrometers (QMSs) and specifies the parameters required for specification by QMS manufacturers necessary for proper calibration and for maintaining the quality of partial pressure measurement.<\/p>\n<p>This International Standard applies to QMSs with an ion source of the electron impact ionization type. Such QMSs are designed for the measurement of atomic mass-to-charge ratios <i>m<\/i>\/<i>z<\/i> typically&nbsp;&gt;300. QMSs with other ion sources, such as those of the chemical ionization, photoionization, and field ionization types, as well as the measurements of <i>m<\/i>\/<i>z<\/i> above 300, which are mainly used to specify organic materials, lie outside the scope of this International Standard.<\/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>3<b><\/td>\n<td>CVP_Secretariat_Loca  <\/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\tScope <br \/> 2\tTerms and definitions <br \/> 2.1\tDefinitions of components  <\/td>\n<\/tr>\n<tr>\n<td><b>13<b><\/td>\n<td>2.2\tDefinitions of physical parameters  <\/td>\n<\/tr>\n<tr>\n<td><b>16<b><\/td>\n<td>3\tSymbols and abbreviated terms  <\/td>\n<\/tr>\n<tr>\n<td><b>17<b><\/td>\n<td>4\tPrinciple of QMS <br \/> 5\tSpecifications for a QMS to be provided by manufacturers <br \/> 5.1\tMass range <br \/> 5.2\tType of ion source <br \/> 5.3\tType of ion detector  <\/td>\n<\/tr>\n<tr>\n<td><b>18<b><\/td>\n<td>5.4\tMass resolution <br \/> 5.5\tMass number stability <br \/> 5.6\tSensitivity <br \/> 5.7\tLinear response range <br \/> 5.8\tMinimum detectable partial pressure <br \/> 5.9\tMinimum detectable concentration <br \/> 5.10\tMaximum operational pressure <br \/> 5.11\tScanning parameter  <\/td>\n<\/tr>\n<tr>\n<td><b>19<b><\/td>\n<td>5.12\tSignal output <br \/> 5.13\tPotentials <br \/> 5.14\tDetector specifications <br \/> 5.15\tSet point <br \/> 5.16\tMaximum bake-out temperature <br \/> 5.17\tNominal operating conditions <br \/> 5.18\tWarm-up time <br \/> 5.19\tFilament material <br \/> 5.20\tElectron emission current <br \/> 5.21\tFilament exchange <br \/> 5.22\tDetector exchange  <\/td>\n<\/tr>\n<tr>\n<td><b>20<b><\/td>\n<td>5.23\tFitting to chamber <br \/> 5.24\tMounting orientation <br \/> 5.25\tDimensions <br \/> 5.26\tInternal volume <br \/> 5.27\tMass of sensor head and electronic unit <br \/> 5.28\tInput power of electronic unit <br \/> 5.29\tCable <br \/> 5.30\tSoftware <br \/> 5.31\tInterface <br \/> 5.32\tStorage and transportation condition  <\/td>\n<\/tr>\n<tr>\n<td><b>21<b><\/td>\n<td>6\tOptional specifications for QMS to be provided by manufacturers <br \/> 6.1\tMass resolution <br \/> 6.2\tFragmentation or cracking pattern <br \/> 6.3\tTemperature coefficient of sensitivity <br \/> 6.4\tQMS sensor cleaning <br \/> 6.5\tDegassing <br \/> 6.6\tDegassing power <br \/> 6.7\tPhotographs <br \/> 6.8\tInspection record <br \/> 6.9\tOutgassing rate  <\/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>Vacuum gauges. Definitions and specifications for quadrupole mass spectrometers<\/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>26<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":264788,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-264786","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\/264786","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\/264788"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=264786"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=264786"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=264786"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}