{"id":311713,"date":"2024-10-19T21:25:38","date_gmt":"2024-10-19T21:25:38","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-294-42019\/"},"modified":"2024-10-25T19:20:16","modified_gmt":"2024-10-25T19:20:16","slug":"bs-en-iso-294-42019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-294-42019\/","title":{"rendered":"BS EN ISO 294-4:2019"},"content":{"rendered":"

This document specifies a method of determining the moulding shrinkage and post-moulding shrinkage of injection-moulded test specimens of thermoplastic material in the directions parallel to and normal to the direction of melt flow.<\/p>\n

For the determination of shrinkage of thermosets, see ISO 2577[<\/sup>2<\/sup>]<\/sup>.<\/p>\n

Moulding shrinkage as defined in this document excludes the effects of humidity uptake. This is included in post-moulding shrinkage and thus in total shrinkage. For cases when post-moulding shrinkage is caused by the uptake of humidity only, see ISO 175[<\/sup>1<\/sup>]<\/sup>.<\/p>\n

Moulding shrinkage as defined in this document represents the so-called free shrinkage with unrestricted deformation of the cooling plates in the mould during the hold period. It is considered, therefore, as the maximum value of any restricted shrinkage.<\/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
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 <\/td>\n<\/tr>\n
10<\/td>\n4 Apparatus <\/td>\n<\/tr>\n
11<\/td>\n5 Procedure
5.1 Conditioning of material
5.2 Injection moulding <\/td>\n<\/tr>\n
12<\/td>\n5.3 Measurement of mould temperature
5.4 Measurement of melt temperature
5.5 Treatment of test specimens after demoulding <\/td>\n<\/tr>\n
13<\/td>\n5.6 Measurement of moulding shrinkage
5.7 Treatment following measurement of moulding shrinkage
5.8 Measurement of post-moulding shrinkage <\/td>\n<\/tr>\n
14<\/td>\n6 Expression of results
6.1 Moulding shrinkage
6.2 Post-moulding shrinkage
6.3 Total shrinkage <\/td>\n<\/tr>\n
15<\/td>\n7 Precision
8 Test report <\/td>\n<\/tr>\n
16<\/td>\nAnnex A (informative) Reference points for length and width measurement <\/td>\n<\/tr>\n
17<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Plastics. Injection moulding of test specimens of thermoplastic materials – Determination of moulding shrinkage<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2019<\/td>\n18<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":311722,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1179,2641],"product_tag":[],"class_list":{"0":"post-311713","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-83-080-20","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\/311713","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\/311722"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=311713"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=311713"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=311713"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}