{"id":315316,"date":"2024-10-19T21:43:47","date_gmt":"2024-10-19T21:43:47","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-6974-52014\/"},"modified":"2024-10-25T19:52:02","modified_gmt":"2024-10-25T19:52:02","slug":"bs-en-iso-6974-52014","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-6974-52014\/","title":{"rendered":"BS EN ISO 6974-5:2014"},"content":{"rendered":"

This part of this International Standard describes a gas chromatographic method for the quantitative determination of the content of nitrogen, carbon dioxide and C1<\/sub><\/sub> to C5<\/sub><\/sub> hydrocarbons individually and a composite C6<\/sub><\/sub>+ measurement, which represents all hydrocarbons of carbon number 6 and above in natural gas samples. It is applicable to the analysis of gases containing constituents within the working ranges given in Table 1.<\/p>\n

Table 1<\/b><\/p>\n

Component working ranges<\/b><\/p>\n

\n

NOTE 1 The working ranges in Table 1 are those for which the method has been shown to be satisfactory, and are offered for guidance. However, there is no reason why wider ranges should not be used, provided that the successful measurement of such wider ranges has been demonstrated.<\/p>\n<\/blockquote>\n

\n

NOTE 2 Hydrocarbons above n-pentane are expressed as the \u201cpseudo-component\u201d C6<\/sub><\/sub>+ which is measured as one composite peak and calibrated as such. The properties of C6<\/sub><\/sub>+ are calculated from an extended analysis of the individual C6<\/sub><\/sub> and higher hydrocarbons.<\/p>\n<\/blockquote>\n

\n

NOTE 3 Oxygen is not a normal constituent of natural gas and would not be expected to be present in gas sampled to an online instrument. If any oxygen is present as a result of air contamination, it will be measured with the nitrogen. The resulting measured (nitrogen + oxygen) value will be in error to a small extent because of the slight difference between the detector responses of oxygen and nitrogen.<\/p>\n<\/blockquote>\n

\n

NOTE 4 The helium and argon contents are assumed to be sufficiently small and unvarying that they need not be analysed for.<\/p>\n<\/blockquote>\n

\n

NOTE 5 The gas sample shall not contain any hydrocarbon condensate and\/or water.<\/p>\n<\/blockquote>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
4<\/td>\nForeword <\/td>\n<\/tr>\n
6<\/td>\nForeword <\/td>\n<\/tr>\n
7<\/td>\nIntroduction <\/td>\n<\/tr>\n
9<\/td>\nSection sec_1
Table tab_1
1\tScope <\/td>\n<\/tr>\n
10<\/td>\nSection sec_2
Section sec_3
2\tNormative references
3\tPrinciple <\/td>\n<\/tr>\n
11<\/td>\nFigure fig_1 <\/td>\n<\/tr>\n
12<\/td>\nSection sec_4
Section sec_4.1
Section sec_4.2
Section sec_4.3
Section sec_4.3.1
Section sec_4.3.2
Section sec_5
Section sec_5.1
Section sec_5.2
Section sec_5.3
Section sec_5.4
Section sec_5.5
Section sec_5.6
Section sec_5.7
Section sec_5.8
4\tMaterials
5\tApparatus <\/td>\n<\/tr>\n
13<\/td>\nSection sec_5.9
Section sec_5.9.1
Section sec_5.9.1.1
Section sec_5.9.1.2
Section sec_5.9.1.3
Section sec_5.9.2
Section sec_5.9.2.1
Section sec_5.9.2.2
Section sec_5.9.2.3
Section sec_5.10
Section sec_5.11
Section sec_5.12
Section sec_5.13 <\/td>\n<\/tr>\n
14<\/td>\nSection sec_6
6\tScheme of the configuration <\/td>\n<\/tr>\n
15<\/td>\nFigure fig_2
Section sec_7
Section sec_7.1
Section sec_7.1.1
7\tProcedure
7.1\tControl of the apparatus <\/td>\n<\/tr>\n
16<\/td>\nSection sec_7.2
Section sec_7.2.1
Table tab_2
7.2\tOperation of the apparatus <\/td>\n<\/tr>\n
17<\/td>\nTable tab_3
Section sec_7.2.2
Section sec_7.2.3 <\/td>\n<\/tr>\n
18<\/td>\nFigure fig_3
Section sec_7.2.4
Table tab_4
Section sec_7.2.5 <\/td>\n<\/tr>\n
19<\/td>\nSection sec_8
Section sec_8.1
Section sec_8.2
8\tExpression of results
8.1\tUncertainty
8.2\tTest report <\/td>\n<\/tr>\n
20<\/td>\nAnnex sec_A
Annex sec_A.1
Table tab_A.1
Annex\u00a0A
\n(informative)<\/p>\n

Example of application <\/td>\n<\/tr>\n

21<\/td>\nTable tab_A.2
Annex sec_A.2 <\/td>\n<\/tr>\n
22<\/td>\nTable tab_A.3 <\/td>\n<\/tr>\n
23<\/td>\nTable tab_A.4
Annex sec_A.3
Annex sec_A.3.1 <\/td>\n<\/tr>\n
24<\/td>\nTable tab_A.5 <\/td>\n<\/tr>\n
25<\/td>\nTable tab_A.6
Table tab_A.7
Annex sec_A.3.2 <\/td>\n<\/tr>\n
26<\/td>\nTable tab_A.8 <\/td>\n<\/tr>\n
27<\/td>\nTable tab_A.9 <\/td>\n<\/tr>\n
28<\/td>\nTable tab_A.10
Annex sec_A.4
Annex sec_A.4.1
Annex sec_A.4.2 <\/td>\n<\/tr>\n
29<\/td>\nAnnex sec_A.5
Annex sec_A.6
Annex sec_A.7 <\/td>\n<\/tr>\n
30<\/td>\nAnnex sec_B
Annex sec_B.1
Annex sec_B.2
Annex sec_B.3
Annex sec_B.4
Annex sec_B.5
Annex sec_B.6
Annex sec_B.6.1
Annex sec_B.6.2
Annex sec_B.6.3
Annex sec_B.6.4
Annex sec_B.6.5
Annex sec_B.6.6
Annex sec_B.7
Annex\u00a0B
\n(informative)<\/p>\n

Procedure for Setting Valve timings and Restrictor Setting <\/td>\n<\/tr>\n

31<\/td>\nAnnex sec_B.7.1
Annex sec_B.7.2
Annex sec_B.7.3
Annex sec_B.7.4
Annex sec_B.7.5
Annex sec_B.8 <\/td>\n<\/tr>\n
32<\/td>\nReference ref_1
Reference ref_2
Reference ref_3
Reference ref_4
Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Natural gas. Determination of composition and associated uncertainty by gas chromatography – Isothermal method for nitrogen, carbon dioxide, C1 to C5 hydrocarbons and C6+ hydrocarbons<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2014<\/td>\n36<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":315321,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-315316","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\/315316","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\/315321"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=315316"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=315316"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=315316"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}