{"id":426824,"date":"2024-10-20T07:03:55","date_gmt":"2024-10-20T07:03:55","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-d8488-2022\/"},"modified":"2024-10-26T13:21:51","modified_gmt":"2024-10-26T13:21:51","slug":"astm-d8488-2022","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-d8488-2022\/","title":{"rendered":"ASTM-D8488 2022"},"content":{"rendered":"

ASTM D8488-22<\/h3>\n

Active Standard: Standard Test Method for Determination of Hydrogen Sulfide (H2S) in Natural Gas by Tunable Diode Laser Spectroscopy (TDLAS)<\/h4>\n
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ASTM D8488<\/h4>\n

Scope<\/strong><\/p>\n

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1.1<\/span> This test method is for the online determination of hydrogen sulfide (H2<\/span><\/sub>S) in natural gas using tunable diode laser absorption spectroscopy (TDLAS) analyzers also known as a \u201cTDL analyzers.\u201d The particular wavelength for H2<\/span><\/sub>S measurement varies by manufacturer, typically between 1000 and 10\u2009000 nm with an individual laser having a tunable range of less than 10\u2009nm. The H2<\/span><\/sub>S concentration ranges can be anywhere from 0-5\u2009\u2009ppm(v) to 0-90\u2009% by volume.<\/p>\n<\/p><\/div>\n

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1.2<\/span> Units\u2014<\/span>The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard. TDLAS analyzers inherently output concentrations in unitless molar ratios such as ppm(v).<\/p>\n

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Note 1:<\/span> Weight-per-volume units such as milligrams or grains of H2<\/span><\/sub>S per cubic foot or cubic meter can be derived from ppm(v) at \u201cstandard conditions\u201d or standard temperature and pressure.<\/span><\/p>\n<\/p><\/div>\n<\/p><\/div>\n

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1.3<\/span> This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.<\/i><\/p>\n<\/p><\/div>\n

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1.4<\/span> This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.<\/i><\/p>\n<\/p><\/div>\n

Keywords<\/strong><\/p>\n

hydrogen sulfide; H2S; natural gas; TDL; TDLAS; tunable diode laser absorption spectroscopy;<\/p>\n

ICS Code<\/strong><\/p>\n

ICS Number Code 75.060 (Natural gas)<\/p>\n

DOI:<\/strong> 10.1520\/D8488-22<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

D8488-22 Standard Test Method for Determination of Hydrogen Sulfide (H2S) in Natural Gas by Tunable Diode Laser Spectroscopy (TDLAS)<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2022<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":426832,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2637],"product_tag":[],"class_list":{"0":"post-426824","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-astm","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\/426824","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\/426832"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=426824"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=426824"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=426824"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}