{"id":8432,"date":"2024-10-16T19:28:43","date_gmt":"2024-10-16T19:28:43","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-e881\/"},"modified":"2024-10-24T11:02:12","modified_gmt":"2024-10-24T11:02:12","slug":"astm-e881","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-e881\/","title":{"rendered":"ASTM-E881"},"content":{"rendered":"

ASTM E881-92-Reapproved2009<\/h3>\n

Historical Standard: Standard Practice for Exposure of Solar Collector Cover Materials to Natural Weathering Under Conditions Simulating Stagnation Mode<\/h4>\n
\n

ASTM E881<\/h4>\n

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

1.1 This practice covers a procedure for the exposure of solar collector cover materials to the natural weather environment at elevated temperatures that approximate stagnation conditions in solar collectors having a combined back and edge loss coefficient of less than 1.5 W\/(m2<\/sup> \u00b7<\/span> \u00b0<\/span>C).<\/p>\n

1.2 This practice is suitable for exposure of both glass and plastic solar collector cover materials. Provisions are made for exposure of single and double cover assemblies to accommodate the need for exposure of both inner and outer solar collector cover materials.<\/p>\n

1.3 This practice does not apply to cover materials for evacuated collectors, photovoltaic cells, flat-plate collectors having a combined back and edge loss coefficient greater than 1.5 W\/(m2<\/sup> \u00b7<\/span>\u00b0<\/span> C), or flat-plate collectors whose design incorporates means for limiting temperatures during stagnation.<\/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><\/span><\/p>\n

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

natural weathering; solar collector covers; stagnation; variable-angle exposure; weathering; Solar collectors; Stagnation conditions; Weathering (solar devices)<\/p>\n

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

ICS Number Code 27.160 (Solar energy engineering)<\/p>\n

DOI:<\/strong> 10.1520\/E0881-92R09<\/p>\n<\/div>\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
Significance and Use <\/td>\n<\/tr>\n
2<\/td>\nWeathering Box Test Fixture
TABLE 1 <\/td>\n<\/tr>\n
3<\/td>\nFIG. 1
FIG. 2 <\/td>\n<\/tr>\n
4<\/td>\nNatural Weathering Exposure
Report
TABLE 2 <\/td>\n<\/tr>\n
5<\/td>\nPrecision and Bias
Keywords
X1. CALCULATION OF EXPOSURE TEST FIXTURE HEAT LOSSES
X1.1 Scope
X1.2 Procedure <\/td>\n<\/tr>\n
7<\/td>\nX2. DETERMINATION OF VARIABLE-ANGLE EXPOSURE SCHEDULE
X2.1
TABLE X2.1 <\/td>\n<\/tr>\n
8<\/td>\nTABLE X2.2 <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

E881-92(2009) Standard Practice for Exposure of Solar Collector Cover Materials to Natural Weathering Under Conditions Simulating Stagnation Mode<\/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":8433,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2637],"product_tag":[],"class_list":{"0":"post-8432","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\/8432","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\/8433"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=8432"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=8432"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=8432"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}