1. Trang chủ
  2. » Kỹ Thuật - Công Nghệ

Bsi bs en 12543 1 1999

14 3 0

Đang tải... (xem toàn văn)

Tài liệu hạn chế xem trước, để xem đầy đủ mời bạn chọn Tải xuống

THÔNG TIN TÀI LIỆU

Thông tin cơ bản

Tiêu đề Characteristics of Focal Spots in Industrial X-ray Systems for Use in Non-destructive Testing
Trường học British Standards Institution
Chuyên ngành Non-destructive Testing
Thể loại British Standard
Năm xuất bản 1999
Thành phố London
Định dạng
Số trang 14
Dung lượng 264,32 KB

Các công cụ chuyển đổi và chỉnh sửa cho tài liệu này

Nội dung

| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |[.]

Trang 1

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

12543-1:1999

The European Standard EN 12543-1:1999 has the status of a

British Standard

ICS 19.100

NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW

Non-destructive testing Ð

Characteristics of focal

spots in industrial X-ray

systems for use in

non-destructive testing Ð

Part 1: Scanning method

Trang 2

This British Standard, having

been prepared under the

direction of the Engineering

Sector Committee, was published

under the authority of the

Standards Committee and comes

into effect on 15 December 1999

 BSI 12-1999

BS EN 12543-1:1999

Amendments issued since publication

National foreword

This British Standard is the English language version of EN 12543-1:1999

The UK participation in its preparation was entrusted to Technical Committee WEE/46, Non-destructive testing, which has the responsibility to:

Ð aid enquirers to understand the text;

Ð present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed;

Ð monitor related international and European developments and promulgate them in the UK

A list of organizations represented on this committee can be obtained on request to its secretary

Cross-references

The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled ªInternational Standards Correspondence Indexº, or by using the ªFindº facility of the BSI Standards Electronic Catalogue

A British Standard does not purport to include all the necessary provisions of a contract Users of British Standards are responsible for their correct application

Compliance with a British Standard does not of itself confer immunity from legal obligations.

Summary of pages

This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 11 and a back cover

The BSI copyright notice displayed in this document indicates when the document was last issued

Trang 3

1250((8523e(11(

(8523b,6&+(1250

(1

6HSWHPEHU

,&6

(QJOLVKYHUVLRQ

1RQGHVWUXFWLYHWHVWLQJ²&KDUDFWHULVWLFVRIIRFDOVSRWVLQ LQGXVWULDO;UD\V\VWHPVIRUXVHLQQRQGHVWUXFWLYHWHVWLQJ²

3DUW6FDQQLQJPHWKRG

(VVDLVQRQGHVWUXFWLIV&DUDFWpULVWLTXHVGHVIR\HUV

pPLVVLIVGHVWXEHVUDGLRJqQHVXWLOLVpVGDQVOHVHVVDLVQRQ

GHVWUXFWLIV3DUWLH0pWKRGHSDUEDOD\DJH

=HUVW|UXQJVIUHLH3UIXQJ&KDUDNWHULVLHUXQJYRQ

%UHQQIOHFNHQLQ,QGXVWULH5|QWJHQDQODJHQIUGLH ]HUVW|UXQJVIUHLH3UIXQJ7HLO6FDQ9HUIDKUHQ

7KLV(XURSHDQ6WDQGDUGZDVDSSURYHGE\&(1RQ$XJXVW

&(1PHPEHUVDUHERXQGWRFRPSO\ZLWKWKH&(1&(1(/(&,QWHUQDO5HJXODWLRQVZKLFKVWLSXODWHWKHFRQGLWLRQVIRUJLYLQJWKLV(XURSHDQ 6WDQGDUGWKHVWDWXVRIDQDWLRQDOVWDQGDUGZLWKRXWDQ\DOWHUDWLRQ8SWRGDWHOLVWVDQGELEOLRJUDSKLFDOUHIHUHQFHVFRQFHUQLQJVXFKQDWLRQDO VWDQGDUGVPD\EHREWDLQHGRQDSSOLFDWLRQWRWKH&HQWUDO6HFUHWDULDWRUWRDQ\&(1PHPEHU

7KLV(XURSHDQ6WDQGDUGH[LVWVLQWKUHHRIILFLDOYHUVLRQV (QJOLVK)UHQFK*HUPDQ $YHUVLRQLQDQ\RWKHUODQJXDJHPDGHE\WUDQVODWLRQ XQGHUWKHUHVSRQVLELOLW\RID&(1PHPEHULQWRLWVRZQODQJXDJHDQGQRWLILHGWRWKH&HQWUDO6HFUHWDULDWKDVWKHVDPHVWDWXVDVWKHRIILFLDO YHUVLRQV

&(1PHPEHUVDUHWKHQDWLRQDOVWDQGDUGVERGLHVRI$XVWULD%HOJLXP&]HFK5HSXEOLF'HQPDUN)LQODQG)UDQFH*HUPDQ\*UHHFH ,FHODQG,UHODQG,WDO\/X[HPERXUJ1HWKHUODQGV1RUZD\3RUWXJDO6SDLQ6ZHGHQ6ZLW]HUODQGDQG8QLWHG.LQJGRP

(8523($1 &200,77(( )25 67$1'$5',=$7,21

& 2 0 , 7 e  ( 8 5 2 3 e ( 1  ' (  1 2 5 0 $ / , 6 $ 7 , 2 1 ( 8 5 2 3 b, 6 &+ ( 6  2 0 , 7 ( (  ) h 5  12 5 0 8 1 *

&HQWUDO6HFUHWDULDWUXHGH6WDVVDUW%%UXVVHOV

‹&(1 $OOULJKWVRIH[SORLWDWLRQLQDQ\IRUPDQGE\DQ\PHDQVUHVHUYHG

ZRUOGZLGHIRU&(1QDWLRQDO0HPEHUV 5HI1R(1(

Trang 4

(1

&RQWHQWV

3DJH )RUHZRUG  ,QWURGXFWLRQ  

6FRSH 

7HUPVDQGGHILQLWLRQV  

7HVWPHWKRG 

0HDVXUHPHQWDQGGHWHUPLQDWLRQRIWKHIRFDOVSRWVL]H 

$QQH[$ LQIRUPDWLYH 3UHIHUUHGYDOXHVRIGIRUWKHFKDUDFWHUL]DWLRQRI;UD\WXEHW\SHV 

Trang 5

3DJH (1

‹%6,

)RUHZRUG

7KLV (XURSHDQ 6WDQGDUG KDV EHHQ SUHSDUHG E\ 7HFKQLFDO &RPPLWWHH &(17&  1RQGHVWUXFWLYH WHVWLQJ WKH 6HFUHWDULDWRIZKLFKLVKHOGE\$)125

7KLV(XURSHDQ6WDQGDUGVKDOOEHJLYHQWKHVWDWXVRIDQDWLRQDOVWDQGDUGHLWKHUE\SXEOLFDWLRQRIDQLGHQWLFDOWH[WRU E\HQGRUVHPHQWDWWKHODWHVWE\0DUFKDQGFRQIOLFWLQJQDWLRQDOVWDQGDUGVVKDOOEHZLWKGUDZQDWWKHODWHVWE\ 0DUFK

$FFRUGLQJ WR WKH &(1&(1(/(& ,QWHUQDO 5HJXODWLRQV WKH QDWLRQDO VWDQGDUGV RUJDQL]DWLRQV RI  WKH IROORZLQJ FRXQWULHV DUH ERXQG WR LPSOHPHQW WKLV (XURSHDQ 6WDQGDUG $XVWULD %HOJLXP &]HFK 5HSXEOLF 'HQPDUN )LQODQG )UDQFH *HUPDQ\ *UHHFH ,FHODQG ,UHODQG ,WDO\ /X[HPERXUJ 1HWKHUODQGV 1RUZD\ 3RUWXJDO 6SDLQ 6ZHGHQ 6ZLW]HUODQGDQGWKH8QLWHG.LQJGRP

,QWKHIUDPHZRUNRILWVVFRSH7HFKQLFDO&RPPLWWHH&(17&HQWUXVWHG&(17&:*,RQL]LQJ5DGLDWLRQ ZLWKSUHSDULQJWKHIROORZLQJVWDQGDUG

(1  1RQGHVWUXFWLYH WHVWLQJ  &KDUDFWHULVWLFV RI IRFDO VSRWV LQ LQGXVWULDO ;UD\ V\VWHPV IRU XVH LQ QRQ

GHVWUXFWLYHWHVWLQJ3DUW6FDQQLQJPHWKRG

(1LVDSDUWRIVHULHVRI(XURSHDQ6WDQGDUGVZLWKWKHVDPHQXPEHUWKHRWKHUSDUWVDUHWKHIROORZLQJ

(1  1RQGHVWUXFWLYH WHVWLQJ  &KDUDFWHULVWLFV RI IRFDO VSRWV LQ LQGXVWULDO ;UD\ V\VWHPV IRU XVH LQ QRQ

GHVWUXFWLYHWHVWLQJ3DUW3LQKROHFDPHUDUDGLRJUDSKLFPHWKRG

(1  1RQGHVWUXFWLYH WHVWLQJ  &KDUDFWHULVWLFV RI IRFDO VSRWV LQ LQGXVWULDO ;UD\ V\VWHPV IRU XVH LQ QRQ

GHVWUXFWLYHWHVWLQJ3DUW6OLWFDPHUDUDGLRJUDSKLFPHWKRG

(1  1RQGHVWUXFWLYH WHVWLQJ  &KDUDFWHULVWLFV RI IRFDO VSRWV LQ LQGXVWULDO ;UD\ V\VWHPV IRU XVH LQ QRQ

GHVWUXFWLYHWHVWLQJ3DUW(GJHPHWKRG

(1  1RQGHVWUXFWLYH WHVWLQJ  &KDUDFWHULVWLFV RI IRFDO VSRWV LQ LQGXVWULDO ;UD\ V\VWHPV IRU XVH LQ QRQ

GHVWUXFWLYHWHVWLQJ3DUW0HDVXUHPHQWRIWKHHIIHFWLYHIRFDOVSRWVL]HRIPLQLDQGPLFURIRFXV;UD\WXEHV

Trang 6

(1

,QWURGXFWLRQ

,QRUGHUWRFRYHUWKHGLIIHUHQWUHTXLUHPHQWVIRUIRFDOVSRWVL]HPHDVXUHPHQWILYHGLIIHUHQWPHWKRGVDUHGHVFULEHGLQ (1WR(1

7KH VFDQQLQJ PHWKRG (1   LV GHGLFDWHG WR WKRVH DSSOLFDWLRQV ZKHUH TXDQWLWDWLYH YDOXHV IRU WKH LQWHQVLW\ GLVWULEXWLRQDQGVSRWVL]HDUHQHHGHGLHFDOLEUDWLRQDQGLPDJHSURFHVVLQJSXUSRVHV

7KHUDGLRJUDSKLFPHWKRGV (1DQG(1 GHVFULEHWKHWUDGLWLRQDOWHFKQLTXHVDQGDUHGHGLFDWHGIRU FHUWLILFDWLRQSXUSRVHVDQGIRUILHOGDSSOLFDWLRQVXSWRN9

:KHUHQRSLQKROHRUVOLWFDPHUDVDUHDYDLODEOHLQWKHILHOGWKHHGJHPHWKRG (1 PD\EHDSSOLHG,WUHSUH VHQWVDYHU\VLPSOHPHWKRGIRUILHOGDSSOLFDWLRQ

,QRUGHUWRFRYHUDOVRWKHPLFURIRFXVV\VWHPVDVSHFLILFPHWKRGLVSUHVHQWHGLQ(1

7KLV(XURSHDQ6WDQGDUGVSHFLILHVWKHPHDVXUHPHQWRIIRFDOVSRWGLPHQVLRQVRILQGXVWULDO;UD\V\VWHPVXSWRDQG LQFOXGLQJN9WXEHYROWDJH,WGHVFULEHVDPHWKRGRIGLUHFWPHFKDQLFDOVFDQQLQJRIIRFDOVSRWVDERYHPPZLWK DKLJKO\FROOLPDWHGUHFHLYHU

7KH LPDJH TXDOLW\ DQG WKH UHVROXWLRQ RI ;UD\ LPDJHV GHSHQG KLJKO\ RQ WKH FKDUDFWHULVWLFV RI WKH IRFDO VSRW LQ SDUWLFXODUWKHVL]HDQGWKHWZRGLPHQVLRQDOLQWHQVLW\GLVWULEXWLRQ

)RUWKHFKDUDFWHUL]DWLRQRIFRPPHUFLDO;UD\WXEHW\SHV LHIRUDGYHUWLVLQJRUWUDGH WKHVSHFLILFPD[LPXPYDOXHV JLYHQLQDQQH[$VKRXOGEHSUHIHUUHG

)RUWKHSXUSRVHVRIWKLVVWDQGDUGWKHIROORZLQJGHILQLWLRQDSSOLHV

)RFDOVSRWWKH;UD\HPLWWLQJDUHDRQWKHDQRGHRIWKH;UD\WXEHDVVHHQIURPWKHPHDVXULQJGHYLFH

 3ULQFLSOHDQGHTXLSPHQW

7KLVFODXVHGHDOVZLWKWKHSURGXFWLRQRIIRFDOVSRWVFDQVWREHXVHGIRUWKHGHWHUPLQDWLRQRIWKHIRFDOVSRWLQWHQVLW\ GLVWULEXWLRQDQGGLPHQVLRQV7KHFRDUVHO\SUHFROOLPDWHGFHQWUDOEHDPRIWKH;UD\WXEHLVPHDVXUHGE\DVFLQWLOODWLRQ

FRXQWHUWKURXJKDGRXEOHVOLWFROOLPDWRU7KHFROOLPDWRUIRUPVDKROHZLWKWKHGLPHQVLRQVK[K7KHZLGWKKGHSHQGV RQWKHVSRWVL]HGDQGVKDOOEHVHOHFWHGFRUUHVSRQGLQJWRWDEOH

7DEOH±&ROOLPDWRUKROHGLPHQVLRQKLQUHODWLRQWRWKHIRFDOVSRWVL]HG

G

7KHSUHFROOLPDWRUGRXEOHVOLWFROOLPDWRUDQGUDGLDWLRQGHWHFWRUVKDOOEHPRXQWHGDVRQHXQLWRQD[\VFDQQLQJWDEOH 7KHRXWSXWVLJQDORIWKHGHWHFWRUVKDOOEHUHJLVWHUHGE\DGDWDDFTXLVLWLRQIDFLOLW\ ILJXUHV 7KHGDWDDFTXLVLWLRQ VKDOOEHZHOOV\QFKURQL]HGZLWKWKH[\VFDQQLQJWDEOH7KHGDWDDFTXLVLWLRQLVGRQHLQWKHZD\WKDWDWFHUWDLQVWHS ZLGWKVDOLQHVFDQLVUHJLVWHUHG ILJXUH 7KHVWHSZLGWKGHSHQGVRQWKHUHTXLUHGUHVROXWLRQEXWLWVKDOOQRWH[FHHG

PP

7KHSUHFROOLPDWRUVKDOOEHPDGHRIOHDGFRQWDLQLQJDKROHRIDSSUR[LPDWHO\PPGLDPHWHU7KHWKLFNQHVVGHSHQGV

Trang 7

3DJH (1

‹%6,

RQWKHPD[LPXP;UD\YROWDJH,WVKDOOFRUUHVSRQGWRDKXQGUHGWKYDOXHOD\HUDWOHDVW

7KHPHDVXULQJFROOLPDWRULVPDGHRIWZRSHUSHQGLFXODUVOLWVVHHILJXUH(DFKVOLWLVIRUPHGE\WZRPHWDOEORFNVZLWK

WKHWKLFNQHVV/IDFLQJHDFKRWKHUDQGNHSWDWDGLVWDQFHKE\VSDFHUVDWWKHHGJHV7KHWKLFNQHVV/VKDOOEH

/![ DG [K 

ZKHUHDLVWKHGLVWDQFHEHWZHHQWKHIRFDOVSRWDQGWKHFROOLPDWRUVXUIDFH VRXUFHVLGH DQGGLVWKHIRFDOVSRWVL]HWR EHPHDVXUHG7KHPLQLPXPWKLFNQHVV/RIWKHFROOLPDWRUVVKDOOEHGHILQHGVXFKWKDWWKHPHDVXUHGVLJQDOLQWHQVLW\

WKURXJKWKHKROHVKDOOEHDWOHDVWWLPHVODUJHUWKDQWKHEDFNJURXQGQRLVHGXHWRWKHSHQHWUDWLRQRIWKHFROOLPDWRU PDWHULDO7KHURXJKQHVV5DRIWKHVOLWVXUIDFHVVKDOOEHEHWWHUWKDQmPDQGWKHIODWQHVVDQGWKHSDUDOOHOLVPEHWWHU

WKDQK7KHPDWHULDORIWKHPHWDOEORFNVVKDOOEHWXQJVWHQRUDQRWKHUVLPLODUDEVRUEDQWPDWHULDO

7KHUDGLDWLRQGHWHFWRUVKDOOZRUNLQWKH;UD\YROWDJHUDQJHEHWZHHQN9DQGWKHQRPLQDOYROWDJHRIWKHWXEHWREH PHDVXUHG$WWKHEULJKWHVWSDUWVRIWKHLQWHQVLW\GLVWULEXWLRQRIWKHVSRWWKHRXWSXWVLJQDOVKDOOKDYHDVLJQDOWRQRLVH UDWLRRIDWOHDVWG%DQGWKHRXWSXWVLJQDOVKDOOIROORZWKHUDGLDWLRQLQWHQVLW\OLQHDUO\'DWDDFTXLVLWLRQDQGGDWD SURFHVVLQJVKDOOEHVWDEOHWRDWOHDVW“RYHUWKHPHDVXULQJWLPH7KH[\VFDQQLQJWDEOHVKDOOEHFDSDEOHRI

UHVROYLQJDQGUHSURGXFLQJDWOHDVWK

 $OLJQPHQWV

2QHRIWKHD[HVRIWKH[\VFDQQLQJWDEOHVKDOOEHWR“•SDUDOOHOWRWKHD[LVRIWKHWXEHDVVHPEO\7KH[\VFDQQLQJ WDEOHSODQHVKDOOEHWR“•SHUSHQGLFXODUWRWKHPDLQEHDPRIWKHWXEHDVVHPEO\7KHGLVWDQFHEHWZHHQWKHIRFDO VSRWDQGWKHFROOLPDWRUVVKDOOEHDVVPDOODVSUDFWLFDEOH:KHQGHYLDWLQJIURPILJXUHWKHGLUHFWLRQRIWKHPDLQEHDP VKDOOEHLQGLFDWHG

127( ,IWKHWXEHD[LVLVQRWGHILQHGWKHQWKHGLUHFWLRQRIWKHHOHFWURQWUDMHFWRU\LVXVHGLQVWHDG

 *UDSKLFVRIWZDUH

7KHJUDSKLFVRIWZDUHVKDOORIIHUWKHSRVVLELOLW\RIDQLVRGRVHFRQWRXUSORW ILJXUH 3ORWVDFFRUGLQJWRILJXUHVDQG FDQJLYHDGGLWLRQDOLQIRUPDWLRQDERXWWKHUDGLDWLRQLQWHQVLW\GLVWULEXWLRQZKLFKPD\EHXVHIXOIRUFRPSXWHUWRPRJUD SK\DQGLPDJHSURFHVVLQJ

 0HDVXUHPHQW

7KHGLPHQVLRQVRIWKHIRFDOVSRWVKDOOEHGHWHUPLQHGIURPWKHLVRGRVHFRQWRXUSORW VHHILJXUH DWRIWKH PD[LPXPLQWHQVLW\

 'HWHUPLQDWLRQRIWKHIRFDOVSRWVL]H

(DFKIRFDOVSRWVL]HLVGHVFULEHGE\LWVVL]HO OHQJWK LQWKHGLUHFWLRQRIWKHWXEHD[LVDQGLWVVL]HZ ZLGWK DFURVVWKH

;UD\WXEH

7KHRSHUDWLQJSDUDPHWHUVRIWKH;UD\WXEHVKDOOEHUHFRUGHG

7KHODUJHURIWKHVHVL]HV ORUZ VKDOOEHXVHGDVWKHIRFDOVSRWVL]HG

$VSHFLILFDWLRQRIWKHIRFDOVSRWVL]HGRQWKH;UD\WXEHVKDOOUHIHUWRWKLVVWDQGDUG

Trang 8

(1

.H\

SHUVRQDOFRPSXWHUDQGGDWDDFTXLVLWLRQXQLW

VFLQWLODWLRQFRXQWHU

GRXEOHVOLWFROOLPDWRU K[K[/

SUHFROOLPDWRU

;UD\WXEH

VFDWWHUHGUDGLDWLRQSURWHFWLRQ

)LJXUH±0HDVXULQJIDFLOLW\IRUUDGLRPHWULFGHWHUPLQDWLRQRIWKHIRFDOVSRWVL]H VFKHPH

Trang 9

3DJH (1

‹%6,

.H\

;UD\WXEH

VFDQGLUHFWLRQV

)LJXUH±0HDVXULQJIDFLOLW\IRUUDGLRPHWULFGHWHUPLQDWLRQRIWKHIRFDOVSRWVL]H H[DPSOH

Trang 10

(1

)LJXUH±/LQHVFDQVRIDIRFDOVSRW

Trang 11

3DJH (1

‹%6,

.H\

VOLW

IRLO VWHHO

KLGGHQVOLW

)LJXUH±'RXEOHVOLWFROOLPDWRU IURPDERYH

)LJXUH±*UDSKLFDOLQWHUSUHWDWLRQRIWKHLQWHQVLW\GLVWULEXWLRQRIIRFDOVSRWVFDQV

Trang 12

(1

)LJXUH±,VRGRVHFRQWRXUSORW

Trang 13

3DJH (1

‹%6,

LQIRUPDWLYH

3UHIHUUHGYDOXHVRIGIRUWKHFKDUDFWHUL]DWLRQRI;UD\WXEHV

7DEOH$±3UHIHUUHGYDOXHVRIGLQPLOOLPHWUHV



   

$GGLWLRQDOO\WRGWKHGLPHQVLRQVRIODQGZFDQEHLQGLFDWHGLQWKHVDPHVWHSV

Trang 14

BS EN

12543-1:1999

BSI

389 Chiswick High Road

London

W4 4AL

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

|

BSI Ð British Standards Institution

BSI is the independent national body responsible for preparing British Standards It presents the UK view on standards in Europe and at the international level It is incorporated by Royal Charter

Revisions

British Standards are updated by amendment or revision Users of British Standards should make sure that they possess the latest amendments or editions

It is the constant aim of BSI to improve the quality of our products and services We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover Tel: 020 8996 9000 Fax: 020 8996 7400

BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards

Buying standards

Orders for all BSI, international and foreign standards publications should be addressed to Customer Services Tel: 020 8996 9001 Fax: 020 8996 7001

In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested

Information on standards

BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service Various BSI electronic information services are also available which give details on all its products and services Contact the Information Centre Tel: 020 8996 7111

Fax: 020 8996 7048

Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards For details of these and other benefits contact Membership Administration Tel: 020 8996 7002 Fax: 020 8996 7001

Copyright

Copyright subsists in all BSI publications BSI also holds the copyright, in the UK, of the publications of the international standardization bodies Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means ± electronic, photocopying, recording or otherwise ± without prior written permission from BSI This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained

If permission is granted, the terms may include royalty payments or a licensing agreement Details and advice can be obtained from the Copyright Manager

Tel: 020 8996 7070

Ngày đăng: 14/04/2023, 00:39