{"id":315297,"date":"2024-10-19T21:43:41","date_gmt":"2024-10-19T21:43:41","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-6974-22012\/"},"modified":"2024-10-25T19:51:55","modified_gmt":"2024-10-25T19:51:55","slug":"bs-en-iso-6974-22012","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-6974-22012\/","title":{"rendered":"BS EN ISO 6974-2:2012"},"content":{"rendered":"

This part of ISO 6974 describes the process required to determine the uncertainty associated with the mole fraction for each component from a natural gas analysis in accordance with ISO 6974-1.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
6<\/td>\nForeword <\/td>\n<\/tr>\n
7<\/td>\nIntroduction <\/td>\n<\/tr>\n
9<\/td>\n1\tScope
2\tNormative references
3\tTerms and definitions
4\tSymbols
4.1\tSymbols <\/td>\n<\/tr>\n
10<\/td>\n4.2\tSubscripts
5\tCalculation of uncertainty
5.1\tGeneral considerations <\/td>\n<\/tr>\n
13<\/td>\n5.2\tPrinciples
5.3\tStep\u00a09\u00a0\u2014 Calculation of uncertainty of mole fractions <\/td>\n<\/tr>\n
19<\/td>\n5.4\tStep\u00a010\u00a0\u2014 Calculation of the expanded uncertainty of mole fractions <\/td>\n<\/tr>\n
20<\/td>\nAnnex\u00a0A
\n(informative)<\/p>\n

Calculation of processed component uncertainties
\nfor the\u00a0methane\u2011by\u2011difference approach <\/td>\n<\/tr>\n

21<\/td>\nAnnex\u00a0B
\n(normative)<\/p>\n

Uncertainties of relative response factors <\/td>\n<\/tr>\n

22<\/td>\nAnnex\u00a0C
\n(informative)<\/p>\n

Alternative calculation of the uncertainty of the value of the unknown <\/td>\n<\/tr>\n

24<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Natural gas. Determination of composition and associated uncertainty by gas chromatography – Uncertainty calculations<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2012<\/td>\n28<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":315301,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-315297","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\/315297","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\/315301"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=315297"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=315297"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=315297"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}