{"id":374759,"date":"2024-10-20T02:40:12","date_gmt":"2024-10-20T02:40:12","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-8791-42021\/"},"modified":"2024-10-26T04:39:19","modified_gmt":"2024-10-26T04:39:19","slug":"bs-iso-8791-42021","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-8791-42021\/","title":{"rendered":"BS ISO 8791-4:2021"},"content":{"rendered":"

This document specifies a method for determining the roughness of paper and board using an apparatus which conforms to the Print-surf method, as defined in this document. It is applicable to all printing papers and boards with which it is possible to form a substantially airtight seal against the guard lands of the measuring head.<\/p>\n

PDF Catalog<\/h4>\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>\n1 Scope
2 Normative references
3 Terms and definitions
4 Principle <\/td>\n<\/tr>\n
8<\/td>\n5 Apparatus
5.1 Print-surf tester (two types) <\/td>\n<\/tr>\n
9<\/td>\n5.2 Principal components of the system <\/td>\n<\/tr>\n
13<\/td>\n5.3 Measuring system
6 Sampling
7 Condition
8 Preparation of test pieces
9 Procedure <\/td>\n<\/tr>\n
14<\/td>\n9.6.1 Variable-area flowmeter type
9.6.2 Impedance type
10 Calculation <\/td>\n<\/tr>\n
15<\/td>\n11 Precision
12 Test report <\/td>\n<\/tr>\n
16<\/td>\nAnnex A Calculation of roughness in micrometres <\/td>\n<\/tr>\n
17<\/td>\nAnnex B (normative) Maintenance of Print-surf roughness testers <\/td>\n<\/tr>\n
19<\/td>\nAnnex C (normative) Calibration of variable-area flowmeters <\/td>\n<\/tr>\n
21<\/td>\nAnnex D (informative) Precision <\/td>\n<\/tr>\n
22<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Paper and board. Determination of roughness\/smoothness (air leak methods) – Print-surf method<\/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>\n24<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":374768,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-374759","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\/374759","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\/374768"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=374759"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=374759"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=374759"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}