{"id":371595,"date":"2024-10-20T02:25:26","date_gmt":"2024-10-20T02:25:26","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-153682021\/"},"modified":"2024-10-26T04:12:41","modified_gmt":"2024-10-26T04:12:41","slug":"bs-iso-153682021","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-153682021\/","title":{"rendered":"BS ISO 15368:2021"},"content":{"rendered":"

This document provides rules for the measurement of the spectral reflectance of plane surfaces and the spectral transmittance of plane parallel elements using spectrophotometers.<\/p>\n

This document only applies to measurements of the regular transmittance and the regular reflectance; it does not apply to those of the diffuse transmittance and the diffuse reflectance.<\/p>\n

This document is applicable to test samples, which are coated or uncoated optical components without optical power.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nNational foreword <\/td>\n<\/tr>\n
6<\/td>\nForeword <\/td>\n<\/tr>\n
7<\/td>\nIntroduction <\/td>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n
10<\/td>\n4 Symbols and units <\/td>\n<\/tr>\n
11<\/td>\n5 Test sample
6 Measuring apparatus <\/td>\n<\/tr>\n
13<\/td>\n7 Test conditions
7.1 Dispersive type spectrophotometer
7.1.1 General
7.1.2 Optical radiation source <\/td>\n<\/tr>\n
14<\/td>\n7.1.3 Monochromator
7.1.4 Detection system
7.1.5 Numerical correction
7.2 Fourier-transform type spectrophotometer
7.2.1 General
7.2.2 Optical radiation source <\/td>\n<\/tr>\n
15<\/td>\n7.2.3 Interferometer
7.2.4 Detection system
7.2.5 Numerical correction <\/td>\n<\/tr>\n
16<\/td>\n8 Test procedure
8.1 Measurement of reflectance
8.1.1 General
8.1.2 Direct measurement of regular reflectance <\/td>\n<\/tr>\n
17<\/td>\n8.1.3 Relative measurement of regular reflectance <\/td>\n<\/tr>\n
18<\/td>\n8.1.4 Measurement of relative reflectance
8.2 Measurement of transmittance
8.2.1 Regular transmittance
8.2.2 Internal transmittance of an optical plate <\/td>\n<\/tr>\n
19<\/td>\n9 Common sources of error
9.1 General
9.2 Monochromator wavelength uncertainty, reproducibility and spectral resolution <\/td>\n<\/tr>\n
20<\/td>\n9.3 Interferometer wavenumber uncertainty, reproducibility and spectral resolution
9.4 Fluctuation of the incident flux
9.5 Parallelism of the sample
9.6 Monochromator stray optical radiation <\/td>\n<\/tr>\n
21<\/td>\n9.7 Linearity of the detection system
9.8 Inter-reflections
9.9 Misalignment of the sample
9.10 Monochromator baseline reproducibility
9.11 Beam divergence <\/td>\n<\/tr>\n
22<\/td>\n10 Test report <\/td>\n<\/tr>\n
23<\/td>\nAnnex A (informative) Spectrophotometers <\/td>\n<\/tr>\n
28<\/td>\nAnnex B (informative) Refractive index of synthetic fused silica <\/td>\n<\/tr>\n
29<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Optics and photonics. Measurement of reflectance of plane surfaces and transmittance of plane parallel elements<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2021<\/td>\n30<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":371601,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-371595","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","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\/371595","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\/371601"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=371595"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=371595"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=371595"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}