This European Standard specifies traceable calibration methods of black-standard thermometers (BST), white-standard thermometers (WST), black-panel thermometers (BPT) and white-panel thermometers (WPT) for use in natural and artificial weathering:<\/p>\n
method A, a contact method, uses a traceable calibrated resistance standard thermometer;<\/p>\n<\/li>\n
method B, a contactless method, uses a traceable calibrated pyrometer.<\/p>\n<\/li>\n<\/ul>\n
A basic design of types of the thermometers is described in EN ISO 4892-1.<\/p>\n
\nNOTE 1 Historically method A has been used for weathering applications for many years: Method B has been developed recently. Both methods are qualified for weathering applications. They may provide different calibration results that are not interchangeable.<\/p>\n<\/blockquote>\n
\nNOTE 2 Annex A gives information on the characteristics of BST\/WST and BPT\/WPT.<\/p>\n<\/blockquote>\n
PDF Catalog<\/h4>\n
\n
\n PDF Pages<\/th>\n PDF Title<\/th>\n<\/tr>\n \n 4<\/td>\n Contents Page <\/td>\n<\/tr>\n \n 5<\/td>\n European foreword <\/td>\n<\/tr>\n \n 6<\/td>\n Introduction <\/td>\n<\/tr>\n \n 8<\/td>\n 1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n\n 9<\/td>\n 4 Abbreviated terms
5 Principle
6 Method A
6.1 General
6.2 Apparatus
6.2.1 Master reference thermometer <\/td>\n<\/tr>\n\n 10<\/td>\n 6.2.2 Thermally insulated device
6.2.3 Test chamber
6.2.4 Radiation source
6.2.5 Sample holder <\/td>\n<\/tr>\n\n 11<\/td>\n Figure 1 \u2014 Example of parallel orientation of black panel plane compared to the plane of full spectrum radiation source(s)
6.2.6 Air flow
6.2.7 Ambient air
6.3 Calibration procedure
6.3.1 Principle <\/td>\n<\/tr>\n\n 12<\/td>\n 6.3.2 Calibration procedure
6.3.2.1 Procedure for calibrating reference calibration thermometers <\/td>\n<\/tr>\n\n 13<\/td>\n 6.3.2.2 Procedure for calibration of the field calibration thermometer
6.4 Calibration report
7 Method B
7.1 Apparatus
7.1.1 General <\/td>\n<\/tr>\n\n 14<\/td>\n 7.1.2 Test chamber
7.1.3 Radiation source
7.1.4 Holder
7.1.5 Air flow
7.1.6 Blower
7.1.7 Pyrometer <\/td>\n<\/tr>\n\n 15<\/td>\n 7.1.8 Chamber air temperature and relative humidity
7.2 Calibration procedure
7.2.1 Principle
7.2.2 Emissivity (\u03b5)
7.2.3 Calibration process <\/td>\n<\/tr>\n\n 16<\/td>\n 7.3 Calibration report <\/td>\n<\/tr>\n \n 17<\/td>\n Annex A (informative) Characteristics of BST\/WST and BPT\/WPT <\/td>\n<\/tr>\n \n 18<\/td>\n Annex B (informative) Example of calibration equipment
Figure B.1 \u2014 Example of calibration equipment <\/td>\n<\/tr>\n\n 19<\/td>\n Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Plastics. Methods for the calibration of black-standard and white-standard thermometers and black-panel and white-panel thermometers for use in natural and artificial weathering<\/b><\/p>\n
\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n BSI<\/b><\/a><\/td>\n 2015<\/td>\n 22<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":305349,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1177,2641],"product_tag":[],"class_list":{"0":"post-305344","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-83-080-01","7":"product_cat-bsi","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\/305344","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\/305349"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=305344"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=305344"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=305344"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}