This European Standard specifies requirements for strength graded structural timber with rectangular cross-sections either visual or machine graded, shaped by sawing, planning or other methods and with cross-sectional dimensions complying with EN 336 (referred to as structural timber in the following clauses).<\/p>\n
This European Standard includes provisions for test methods, Assessment and Verification of Constancy of Performance and marking of structural timber.<\/p>\n
\nNOTE 1 For machine strength graded timber additional provisions for type testing (TT) are given in EN 14081\u20112 and for factory production control (FPC) in EN 14081\u20113.<\/p>\n<\/blockquote>\n
\nNOTE 2 An acceptance procedure for verification of a lot is given in EN 14358 which may be used for a delivery of structural timber.<\/p>\n<\/blockquote>\n
This European Standard identifies characteristics for which limits have to be given in visual grading standards.<\/p>\n
This European Standard covers structural timber, untreated or treated against biological attack.<\/p>\n
This European Standard does not cover:<\/p>\n
\n
- \n
timber treated by fire retardant products to improve its fire performance;<\/p>\n<\/li>\n
- \n
thermally and\/or chemically modified timber;<\/p>\n<\/li>\n
- \n
structural finger jointed timber.<\/p>\n<\/li>\n<\/ul>\n
PDF Catalog<\/h4>\n
\n
\n PDF Pages<\/th>\n PDF Title<\/th>\n<\/tr>\n \n 2<\/td>\n National foreword <\/td>\n<\/tr>\n \n 8<\/td>\n 1 Scope
2 Normative references <\/td>\n<\/tr>\n\n 9<\/td>\n 3 Terms and definitions <\/td>\n<\/tr>\n \n 10<\/td>\n 4 Symbols <\/td>\n<\/tr>\n \n 11<\/td>\n 5 Requirements for structural timber
5.1 Mechanical resistance
5.1.1 General
5.1.2 Visual strength grading
5.1.3 Machine strength grading <\/td>\n<\/tr>\n\n 13<\/td>\n 5.2 Fire resistance (charring rate)
5.3 Reaction to fire <\/td>\n<\/tr>\n\n 14<\/td>\n 5.4 Release of dangerous substances
5.5 Biological durability
5.5.1 Structural timber without preservative treatment
5.5.2 Structural timber with preservative treatment
5.6 Geometrical data <\/td>\n<\/tr>\n\n 15<\/td>\n 6 Assessment and verification of constancy of performance \u2013AVCP
6.1 General
6.2 Type testing
6.2.1 General
6.2.2 Test samples, testing and compliance criteria <\/td>\n<\/tr>\n\n 16<\/td>\n 6.2.3 Test reports <\/td>\n<\/tr>\n \n 17<\/td>\n 6.2.4 Shared other party results
6.3 Factory production control (FPC)
6.3.1 General
6.3.2 Requirements
6.3.2.1 General <\/td>\n<\/tr>\n\n 18<\/td>\n 6.3.2.2 Equipment <\/td>\n<\/tr>\n \n 19<\/td>\n 6.3.2.3 Incoming timber
6.3.2.4 Traceability and marking
6.3.2.5 Controls during manufacturing process
6.3.2.6 Product testing and evaluation <\/td>\n<\/tr>\n\n 21<\/td>\n 6.3.2.7 Non-complying products
6.3.2.8 Corrective action
6.3.2.9 Handling, storage and packaging
6.3.3 Product specific requirements <\/td>\n<\/tr>\n\n 22<\/td>\n 6.3.4 Initial inspection of factory and of FPC
6.3.5 Continuous surveillance of FPC
6.3.6 Procedure for modifications <\/td>\n<\/tr>\n\n 23<\/td>\n 7 Marking
7.1 Marking methods
7.2 Information on the timber (method A) or on the package (method B) <\/td>\n<\/tr>\n\n 24<\/td>\n 7.3 Information in the documents accompanying strength graded structural timber <\/td>\n<\/tr>\n \n 25<\/td>\n 8 Environmental issues <\/td>\n<\/tr>\n \n 26<\/td>\n Annex\u00a0A (normative)Requirements for strength reducing characteristics for visual grading standards
A.1 Limitations for strength-reducing characteristics
A.1.1 Knots
A.1.2 Slope of grain
A.1.3 Density and rate of growth <\/td>\n<\/tr>\n\n 27<\/td>\n A.1.4 Fissures
A.2 Limitations for geometrical characteristics
A.2.1 Wane
A.2.2 Warp <\/td>\n<\/tr>\n\n 28<\/td>\n A.3 Limitations for biological characteristics
A.4 Other characteristics
A.4.1 Reaction wood
A.4.2 Other criteria <\/td>\n<\/tr>\n\n 29<\/td>\n Annex\u00a0B (normative)Marking codes for species
B.1 Marking codes for single species <\/td>\n<\/tr>\n\n 30<\/td>\n B.2 Marking codes for species combination <\/td>\n<\/tr>\n \n 32<\/td>\n Annex\u00a0C (normative)Measurement of moisture content
C.1 General
C.2 Measurement of moisture content of timber during production <\/td>\n<\/tr>\n\n 33<\/td>\n Annex\u00a0ZA (informative)Relationship of this European Standard with Regulation (EU) No.305\/2011 <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Timber structures. Strength graded structural timber with rectangular cross section – General requirements<\/b><\/p>\n
\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n BSI<\/b><\/a><\/td>\n 2019<\/td>\n 42<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":219368,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-219367","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\/219367","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\/219368"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=219367"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=219367"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=219367"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}