{"id":12372,"date":"2024-10-16T21:03:15","date_gmt":"2024-10-16T21:03:15","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-e811\/"},"modified":"2024-10-24T11:40:51","modified_gmt":"2024-10-24T11:40:51","slug":"astm-e811","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-e811\/","title":{"rendered":"ASTM-E811"},"content":{"rendered":"<\/p>\n

1.1 This practice describes the instrumental determination of retroreflected chromaticity coordinates of retroreflectors. It includes the techniques used in a photometric range to measure retroreflected (nighttime) chromaticity with either a telecolorimeter or telespectroradiometer.<\/p>\n

1.2 This practice covers the general measurement procedures. Additional requirements for specific tests and specifications are described in Section 7.<\/p>\n

1.3 The description of the geometry used in the nighttime colorimetry of retroreflectors is described in Practice E808 and the methods for calculation of chromaticity are contained in Practice E308 .<\/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

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nScope
Referenced Documents
Terminology <\/td>\n<\/tr>\n
2<\/td>\nSummary of Practice
Significance and Use <\/td>\n<\/tr>\n
3<\/td>\nUse of the CIE Chromaticity Diagram for the Specification of Color
Requirements to be Stated in Specifications <\/td>\n<\/tr>\n
4<\/td>\nApparatus
Test Specimen and Sample
Calibration and Standardization <\/td>\n<\/tr>\n
5<\/td>\nProcedure
FIG. 1 <\/td>\n<\/tr>\n
6<\/td>\nPrecision and Bias
FIG. 2 <\/td>\n<\/tr>\n
7<\/td>\nKeywords
TABLE 1
TABLE 2
TABLE 3
TABLE 4 <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

E811-09 Standard Practice for Measuring Colorimetric Characteristics of Retroreflectors Under Nighttime Conditions<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2009<\/td>\n8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":12373,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1302,2637],"product_tag":[],"class_list":{"0":"post-12372","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-93-080-30","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\/12372","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\/12373"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=12372"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=12372"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=12372"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}