{"id":439741,"date":"2024-10-20T08:10:51","date_gmt":"2024-10-20T08:10:51","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-e408-2008\/"},"modified":"2024-10-26T15:18:54","modified_gmt":"2024-10-26T15:18:54","slug":"astm-e408-2008","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-e408-2008\/","title":{"rendered":"ASTM-E408 2008"},"content":{"rendered":"

ASTM E408-71-Reapproved2008<\/h3>\n

Historical Standard: Standard Test Methods for Total Normal Emittance of Surfaces Using Inspection-Meter Techniques<\/h4>\n
\n

ASTM E408<\/h4>\n

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

1.1 These test methods cover determination of the total normal emittance (Note) of surfaces by means of portable, inspection-meter instruments.<\/p>\n

Note<\/span> 1\u2014Total normal emittance (\u03b5<\/span>N<\/sub>) is defined as the ratio of the normal radiance of a specimen to that of a blackbody radiator at the same temperature. The equation relating \u03b5<\/span>N<\/sub> to wavelength and spectral normal emittance [\u03b5<\/span>N<\/sub> (\u03bb<\/span>)] is<\/p>\n

1.2 These test methods are intended for measurements on large surfaces when rapid measurements must be made and where a nondestructive test is desired. They are particularly useful for production control tests.<\/p>\n

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.<\/p>\n

1.4 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 and health practices and determine the applicability of regulatory limitations prior to use.<\/span><\/p>\n

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

emittance; infrared emittance; material radiative property; normal emittance; radiative heat transfer; spacecraft thermal control; thermal radiation; Emittance; Infrared (IR) analysis–aerospace materials\/applications; Infrared spectroscopy; Thermal radiation<\/p>\n

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

ICS Number Code 17.040.20 (Properties of surfaces)<\/p>\n

DOI:<\/strong> 10.1520\/E0408-71R08<\/p>\n<\/div>\n

PDF Catalog<\/h4>\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nScope
Summary of Test Methods <\/td>\n<\/tr>\n
2<\/td>\nLimitations
Procedure
Report <\/td>\n<\/tr>\n
3<\/td>\nKeywords <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

E408-71(2008) Standard Test Methods for Total Normal Emittance of Surfaces Using Inspection-Meter Techniques<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2008<\/td>\n3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":439746,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[255,2637],"product_tag":[],"class_list":{"0":"post-439741","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-17-040-20","7":"product_cat-astm","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/439741","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\/439746"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=439741"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=439741"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=439741"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}