{"id":417607,"date":"2024-10-20T06:16:51","date_gmt":"2024-10-20T06:16:51","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-61249-2-442016-2\/"},"modified":"2024-10-26T11:41:59","modified_gmt":"2024-10-26T11:41:59","slug":"bs-en-61249-2-442016-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-61249-2-442016-2\/","title":{"rendered":"BS EN 61249-2-44:2016"},"content":{"rendered":"

This part of IEC 61249 gives requirements for properties of non-halogenated epoxide non- woven reinforced core\/woven E-glass reinforced surface laminate sheets of defined flammability (vertical burning test), copper-clad for lead-free assembly in thicknesses of 0,60 mm up to 1,70 mm. The flammability rating is achieved through the use of non- halogenated fire retardants reacted as part of the epoxide polymeric structure. The glass transition temperature is defined to be 105 \u00b0C minimum.<\/p>\n

Some property requirements may have several classes of performance. The class desired should be specified on the purchase order, otherwise the default class of material will be supplied.<\/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\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
4<\/td>\nEuropean foreword
Endorsement notice <\/td>\n<\/tr>\n
5<\/td>\nAnnex ZA (normative) Normative references to international publications with their corresponding European publications <\/td>\n<\/tr>\n
6<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
8<\/td>\nFOREWORD <\/td>\n<\/tr>\n
10<\/td>\n1 Scope
2 Normative references
3 Materials and construction
3.1 General
3.2 Resin system <\/td>\n<\/tr>\n
11<\/td>\n3.3 Metal foil
3.4 Reinforcement
4 Internal marking
5 Electrical properties
6 Non-electrical properties of the copper-clad laminate
6.1 Appearance of the copper-clad sheet
6.1.1 General
Tables
Table 1 \u2013 Electrical properties <\/td>\n<\/tr>\n
12<\/td>\n6.1.2 Indentations (pits and dents)
6.1.3 Wrinkles
6.1.4 Scratches
6.1.5 Raised areas
Table 2 \u2013 Size of indentations <\/td>\n<\/tr>\n
13<\/td>\n6.1.6 Surface waviness
6.2 Appearance of the unclad face
6.3 Laminate thickness
6.4 Bow and twist
Table 3 \u2013 Nominal thickness and tolerance of metal-clad laminate <\/td>\n<\/tr>\n
14<\/td>\n6.5 Properties related to the copper foil bond
Table 4 \u2013 Bow and twist requirements
Table 5 \u2013 Pull-off and peel strength requirements <\/td>\n<\/tr>\n
15<\/td>\n6.6 Punching and machining
6.7 Dimensional stability
6.8 Sheet sizes
6.8.1 Typical sheet sizes
6.8.2 Tolerances for sheet sizes
Table 6 \u2013 Dimensional stability <\/td>\n<\/tr>\n
16<\/td>\n6.9 Cut panels
6.9.1 Cut panel sizes
6.9.2 Size tolerances for cut panels
6.9.3 Rectangularity of cut panels
7 Non-electrical properties of the base material after complete removal of the copper foil
7.1 Appearance of the dielectric base material
Table 7 \u2013 Size tolerances for cut panels
Table 8 \u2013 Rectangularity of cut panels <\/td>\n<\/tr>\n
17<\/td>\n7.2 Flexural strength
7.3 Flammability
Table 9 \u2013 Flexural strength requirements
Table 10 \u2013 Flammability requirements <\/td>\n<\/tr>\n
18<\/td>\n7.4 Water absorption
7.5 Measling
7.6 Glass transition temperature and cure factor
7.7 Decomposition temperature
Table 11 \u2013 Water absorption requirements
Table 12 \u2013 Measling requirements
Table 13 \u2013 Glass transition temperature and cure factor requirements
Table 14 \u2013 Decomposition temperature requirements <\/td>\n<\/tr>\n
19<\/td>\n7.8 Time to delamination (TMA)
8 Quality assurance
8.1 Quality system
8.2 Responsibility for inspection
8.3 Qualification inspection
8.4 Quality conformance inspection
8.5 Certificate of conformance
Table 15 \u2013 Time to delamination requirements <\/td>\n<\/tr>\n
20<\/td>\n8.6 Safety data sheet
9 Packaging and marking
10 Ordering information <\/td>\n<\/tr>\n
21<\/td>\nAnnex A (informative) Engineering information
A.1 General
A.2 Chemical properties
A.3 Electrical properties
A.4 Flammability properties
A.5 Mechanical properties
A.6 Physical properties <\/td>\n<\/tr>\n
22<\/td>\nA.7 Thermal properties <\/td>\n<\/tr>\n
23<\/td>\nAnnex B (informative) Common laminate constructions <\/td>\n<\/tr>\n
24<\/td>\nAnnex C (informative) Guideline for qualification and conformance inspection
Table C.1 \u2013 Qualification and conformance inspection <\/td>\n<\/tr>\n
25<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Materials for printed boards and other interconnecting structures – Reinforced base materials clad and unclad. Non-halogenated epoxide non-woven\/woven E-glass reinforced laminate sheets of defined flammability (vertical burning test), copper-clad for lead-free assembly<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2016<\/td>\n28<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":417617,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-417607","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\/417607","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\/417617"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=417607"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=417607"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=417607"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}