{"id":287757,"date":"2024-10-19T19:30:32","date_gmt":"2024-10-19T19:30:32","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-18526-12020\/"},"modified":"2024-10-25T16:24:12","modified_gmt":"2024-10-25T16:24:12","slug":"bs-en-iso-18526-12020","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-18526-12020\/","title":{"rendered":"BS EN ISO 18526-1:2020"},"content":{"rendered":"

This document specifies the reference test methods for determining the spherical, cylindrical, and prismatic refractive power properties of unmounted and mounted plano lenses (non-corrective lenses) for eye and face protectors.<\/p>\n

This document does not apply to any eye and face protection product requirement standards for which other test methods are specified.<\/p>\n

Other test methods can be used provided they have been shown to be equivalent and include uncertainties of measurement no greater than those required by the reference method.<\/p>\n

PDF Catalog<\/h4>\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
4<\/td>\nEuropean 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
4 Preparatory information <\/td>\n<\/tr>\n
10<\/td>\n5 General test requirements
6 Geometrical optical test methods
6.1 Test method for refractive power and prismatic power for plano lenses
6.1.1 Principle
6.1.2 Apparatus <\/td>\n<\/tr>\n
11<\/td>\n6.1.3 Calibration of the apparatus
6.1.4 Procedure <\/td>\n<\/tr>\n
13<\/td>\n6.2 Test method for the prism imbalance of complete eye protectors or lenses covering both eyes
6.2.1 Principle
6.2.2 Apparatus <\/td>\n<\/tr>\n
14<\/td>\n6.2.3 Procedure <\/td>\n<\/tr>\n
15<\/td>\n6.2.4 Test report
6.3 Spatial deviations
6.3.1 Principle
6.3.2 Apparatus <\/td>\n<\/tr>\n
16<\/td>\n6.3.3 Procedure <\/td>\n<\/tr>\n
17<\/td>\n6.3.4 Test report
7 Uncertainty of measurement <\/td>\n<\/tr>\n
18<\/td>\nAnnex A (normative) Application of uncertainty of measurement <\/td>\n<\/tr>\n
21<\/td>\nAnnex B (informative) Method of variable distance for the calibration of telescope (see 6.1.3) <\/td>\n<\/tr>\n
23<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Eye and face protection. Test methods – Geometrical optical properties<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2020<\/td>\n24<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":287760,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-287757","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\/287757","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\/287760"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=287757"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=287757"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=287757"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}