{"id":341734,"date":"2024-10-19T23:57:53","date_gmt":"2024-10-19T23:57:53","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-189412020\/"},"modified":"2024-10-25T23:11:00","modified_gmt":"2024-10-25T23:11:00","slug":"bs-iso-189412020","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-189412020\/","title":{"rendered":"BS ISO 18941:2020"},"content":{"rendered":"

This document describes the equipment, methods and procedures for generating a known ozone exposure and the subsequent measurement and quantification of the amount of change produced within both digitally printed hardcopy images and traditional analogue photographic colour print images due to that exposure.<\/p>\n

The test method described in this document uses increased levels of ozone to achieve an accelerated test. If the principal \u201cgas fading\u201d mechanism for a system is not ozone, this method might not be suitable and might give misleading results as to resistance of the test image to polluted air.<\/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
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
11<\/td>\n4 Requirements
5 Sample preparation
5.1 Target selection
5.2 Use of replicates and reference samples
6 Holding and measurement conditions <\/td>\n<\/tr>\n
13<\/td>\n7 Test methods \u2014 Gas fading (ozone)
7.1 General
7.2 Apparatus
7.2.1 Ozone test device <\/td>\n<\/tr>\n
17<\/td>\n7.2.2 Source of ozonized air <\/td>\n<\/tr>\n
18<\/td>\n7.2.3 Means for adjusting, controlling and maintaining ozone concentration <\/td>\n<\/tr>\n
19<\/td>\n7.2.4 Means of determining the ozone concentration
7.2.5 Means of controlling gas flow <\/td>\n<\/tr>\n
20<\/td>\n7.2.6 Test piece carrier <\/td>\n<\/tr>\n
21<\/td>\n7.3 Test procedure <\/td>\n<\/tr>\n
22<\/td>\n8 Test environment conditions
8.1 Humidity control calibration
8.2 Relative humidity
8.3 Temperature
8.4 Ozone concentration <\/td>\n<\/tr>\n
23<\/td>\n9 Test report
9.1 General reporting requirements
9.2 Ozone test reporting <\/td>\n<\/tr>\n
25<\/td>\nAnnex A (normative) Reciprocity considerations <\/td>\n<\/tr>\n
27<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Imaging materials. Colour reflection prints. Test method for ozone gas fading stability<\/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>\n30<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":341740,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[714,2641],"product_tag":[],"class_list":{"0":"post-341734","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-37-040-20","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\/341734","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\/341740"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=341734"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=341734"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=341734"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}