Bsi bs au 050 1 4 5a 1996 (iso 7867 1 1996) scan

BRITISH STANDARD AUTOMOBILE SERIES BS AU : P a rt : S ubsection a : 1996 I S 7867- : 1996 v r e s and wh eels Part 'l j m es S ection Agricultural tractor and machine tyres S ubsection 4.5a S p ecification for designations, dimensions, marking and tyreh im coordination for metric series tyres IC s 43.040.50; 83.1 60.30 NO COPYING WITHOUT B S I PERMIS S IO N EXC EPT A S PERMIT TED BY COPYRIGHI L A W Reproduced by IHS under license with BSI ~ _ _ _ _ ES1 BS A U 60 : - ~ :SUBSEC*4-5A ßS*AU *SO: PTL P a rt : Subsection 4.5.a : 96 Lb24bb9 05b41 454 1996 C o m m i tte e s responsible fo r this B ritish Standard The preparation of this Standard was entrusted to Technical Committee motor vehicles, upon which the following bodies were British and wheels for AW4, Q E IS repres ented Ag ric ultud Engineers’Association Automobile Association B r i W industriai ?hick Association British Pressure Gauge Manufacturem’ Association British Rubber Manufacturen’ Association Confederation of Passenger ?kansport UK Department of Pansport F‘ rei i t n-anspOrt Association Institute of Road B ans port Engineers (inc) Motor Cycle industry’s Association of Great Britain British Industry Research Association National ’&E D a b u t o n ’ Association Retread Manutkturers’ Association Road Haulage Association Ltd Society of Motor Manufacturers and W Second edition S eptember 996 No The following BSI references relate to the work on this standard Committee reference AUE14 Draft for comment IS B N O 94/703351 080 26058 Reproduced by IHS under license with BSI DC - D a Text e affected m Ltd LM BS AU 60 : Part : Subsection 4.6a : 19% Contents CommiUees Nationai page responsible Inside front cover foreword ii S pecification %ope Nonnative references Dennitions l)w % designaiion Marking Q re dimensions dimensions tyre Method of measurement of '&re and rim An n exes coordination 'Qre A (normative) B (normative) Approved C (informative) Approved D (informative) B ibliography Tables rim Nominal Ri mw i dthc o de rim Approved C.l Approved rim rim widths O BSI Reproduced by IHS under license with BSI 996 Approved contours rim rim rim c o n to m contours contours tyre tyres with aspact s eries lyres s eries tyres s eries rim widths '95' s eries tractor '75' dimensions of approved - '70' - '65' for work C.4 10 calculation of B.l Approved contours Coefficients for d c u l a t i o n Approved widths rim diameter code Coefficients for C.3 dimensions C.2 dimensions tyres ratios 90 to tyres 70, inclusive for special d t i v a t i o n 8 i BS AU 60 : Part : Subsection 4.6a : 996 National foreword This Subsection of BS AU supersedes BS AU 50 wi th IS0 : 50 has been prepared by Technical Cornmitỵee A W part : S u b d o n 4.5 Ty-es and rims (metric for aqrictdtud tmctors and Tyw designution, dimenswns, murking and tyre/mm 7867-1 : 1996 -Part coord.ination, mach.ines 1: and 992, which is withdrawn It is identical : series) published by the Int~rnational w o n for Standankalion (IN) BS AU 50 is published in four Parts: Part I lprfZ5 Part Wkeek Part valves Pari and rim Rim p ro fi l e s and dimenswns IS0 7867 specifies requirements for metric series tyres and rims for agri cu l tu ral tractors and machina and I S 8664 specifies requirements for agricultural tractor drive-wheel tyres Cross-references Publication referred to Corresponding B ritish Standard BS AU 50 12/res Part1 Fy.ws Section IS0 7867-2 : 1996 and wheels AgriculCUd tmctor and muchine tyres Sp&&at.ion for description and load Wingsfor metric series tyra Rim p ro fi le s and tm~torand muchim Spscificationfor pìy-rating ma*d Subsection 4.6 : 1996 servi ce (Identical) Part d i m en si on s Section Agricultuml I s 425 : 1994 rim Subsection l a : 1995 series rims (Identicai) The Technical Committee has reviewed the provisions of noirnative reference is made in the text, and has decided use in conj unction with this standard I S 42231 , to which that they are acceptable for Compliance with a B ritish Standard does not of its elf confer immunity fro m legal obligations Reproduced ii by IHS under license with BSI O BSI 1996 BS AU : Part : Subsection 4.5a : 1996 Tyres and ri m s (m etri c series) for ag ri cul tural tractors and machines - Part I : Tyre designation, dim ensi ons, m arki n g and tyre/ri m coordi nati on maintain registers of cu rrently valid I nternational Stan- Scope dards This part of I S 7867 establishes th e size designation, th e dimensional calculation and th e markings of th e rn m - - - = = ie rn * m etric series of tyres primarily i ntended for use on aaricultural tractors and machines Tyre and ri m coo;dination is also given I t applies to bias-belted, diagonal and radial tyres mounted on 5" tapered rims, as specified in I S 4251 -3 Only established ri m di am eters and wi d th s wi th i n th e ranges i n tables and are recom mended This part of Definitions of some terms used in the tyre industry - Part 1: Pneumatic tyres I S 4223-1 :1 989, IS0 4251 -3:1 994, Tyres (ply rating marked series) and rims for agricultural tractors and machines - Part 3: Rims I S 7867-2: 996, Tyres and rims (metric series) for agricultura/ tractors and machines - Part 2: Service description and load ratings I S 7867 also applies to di fferen t con- cepts and types of tyres and rims; i n th i s case, h owever, appropriate ri m/section ratios K2, a and b KIand coeffi ci en ts wi l l be established and added Definitions For th e purposes of th i s part of I S 7867, th e defini- Dimensions of existing rims are specified in I S 4251 -3 tions given i n NOTE for Code (pl y rating) marked series of tyres and rims agricultural tractors and I S 4251 -1 , IS0 4251 -2 and tion (load index - machines are IS0 4251 -5 specified IS0 4223-1 and th e fol l owi n g defini ti on apply in Servi ce descrip- speed symbol) marking of th e existing series of agricultural tractor-drive-wheel tyres is given in IS0 8664 3.1 agricultural fyre for special culti vation work Tyre for use on wheels (usually tractor drive wheels) on agricultural machines engaged on surface work or linear cu l ti vati on and th e transport on roads and tracks of th e tool s requ ired for such work Normative references The fol l owi n g standards contain provisions throu gh reference i n th i s text, sti tu te provisions of this part of I S 7867 At th e ti m e of publication, th e editions i ndi cated were valid Al l standards are subject to revision, and parties to agreemenrs based on th i s part of I S 7867 are encouraged t o investig ate th e possibi lity of applying th e m ost recent editions of th e standards indi cated bel ow M em bers of I EC and I S Reproduced by IHS under license with BSI Tyre designation which, The designation of th e tyre shall be shown on i ts si dewall and shall include th e fol l owi n g markings to be sh own close t o each other: - size and constru cti on (see 4.1 1; - service descri ption (see 4.2) BS AU 60 : Part : Subsection 4.6a : 1996 Size and construction 4.1 Table Nominal rim diametew codel) The characteristics shall be in dicated as fol lows: Nominal rim diameter width 4.1 rati o (9) 10 12 (1 3) 14 (1 5) 16 (1 7) 18 (1 9) 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 code code Nominal section width The nominal secti on wi d th shall be expressed i n m il li m etres and shall end i n O 4.1 Nominal aspect ratio The nominal aspect rati o shall be expressed as a percentage and shall be a m u l ti pl e of 4.1 Tyre construction code The tyre constru cti on code shall be as fol l ows: - " B " for bias-belted construction; - " D " for diagonal/bias construction; - " R " for radial constru cti on NOTE Other codes will be established for new concepts (constructions) of tyres 4.1 I 1) Nominal rim diameter code For tyres m ou n ted on 5" tapered rims, th e ri m diam- eter shall be expressed by a code formed wi th or digits The code shall be as given i n table For tyres for reasons requiring especially n ew concept concerning rims, mounting, safety th e code number shall be equal t o th e nominal ri m diam eter expressed i n an in teg ral number of m il lim etres, ¡.e formed by 4.1.5 or digi ts Rim width code For tyres m ou n ted on 5" tapered rims, th e ri m wi dth shall be expressed by a code, as given i n table For tyres requiring n ew concept rims, other code numbers wi l l be established 4.2 The service descripti on shall be indi cated as foll ows: The IS0 ' characteristics are 7867-2 Reproduced by IHS under license with BSI speci fi ed and explained i n Nominal rim diameter, Dr mm o1 152 203 229 254 305 330 356 381 406 432 457 483 508 559 61 O 660 71 762 81 864 91 965 1016 067 1118 1168 1219 270 1321 372 I Table - Rim width code Rim width code 2.50 00 50 00 50 00 5.50 00 00 00 9.00 10 00 11 12.00 13.00 14.00 15.00 16.00 18 00 20 00 21 23 00 25 00 27 00 o0 Speed sym bol I Values in parentheses are not recommended .o0 Service description Load index - Nominal rim diameter code Measuring rim width, mm , 63, 762 88, 01.6 114.3 127 139.7 152 177 203 228, 254 279, 304 330, 355, 381 406.4 457, 508 533.4 584, 635 685 R , BS*AU *50: PTL BSI :SUBSEC*4 5A 96 = BS AU 60 : Part 4.3 I n th e case of tu bel ess tyres, : Subsection th e marking : 1996 Calculation of "design tyre" dimensions "TUBELESS" shall be sh own on th e tyre 6.1 4.3.2 6.1 I n th e case of a preferred directi on of rotati on Theoretical rim width, of th e tyre, an arrow shall be used to indi cate th at diThe theoretical ri m wi d th , recti on R,,, of th e nominal section wi dth , 4.3.3 4.5a Tyre dimensions Oth er service character¡ st¡ cs 4.3.1 m T3 b 62 669 1 Specific indications, i f required, may be added ratio, KI: Ra t o indicate other characteristics = For factor Rth is equal to th e product SN, and th e ri m/section K~ SN KI,see table 4.4 Tyre classifcation and nomenclature (optional ) A tyre classification code - - use of wh i ch i s optional may describe th e primary fi el d of application for th e tyre 6.1 Measuring rim width, R, R,, The measuring ri m width, i s th e wi dth of the standardized ri m nearest to th e th eoreti cel ri m width, NOTE Nomenclature and a classification code are under Rth (see table and annex A) study 6.1 Design tyre section width, S The design tyre section wi dth , Marking wi dth , SN, th e measuring ri m width, Tyres meeti ng th e size and stru cti on requ irem ents and service description of th i s part of I S 7867 shall S, is a nominal section transferred from th e th eoreti cal rim , i+ t ,, o R,: s = SN + K2(Rm- &,) be marked on th e sidewal l as sh own i n th e example below rounded t o th e nearest wh ol e number EXAMPLE For factor K2,see table A tyre having 6.1 Design tyre section height, H a size and constru cti on of: a) The design tyre section height, nominal secti on wi d th 480 mm, H, du ct of th e nominal section wi dth , nominal aspect ratio 70, aspect ratio, H/S divided by 00: is equal to the pro- SN, and th e nominal radial construction, nominal rim diameter code bì 38; rounded to th e nearest wh ol e number service descri ption of: - basic load 900 kg (load index 45) - reference speed 40 km/h (speed sym bol A8); In 38 nominal ri m diameter, 145 AB I addition, other service Characteristics such as tube- less shall be marked: I TUBELESS I Design tyre overall diameter, Do The design tyre overall diameter, shall be marked: /48O/t O R 6.1 secti on hei ght, H: D, , Do, is the su m of the plus twi ce th e design tyre Do=D, +2H For those tyres u sing a rim diameter code form ed by or digits, see table for th e value of D, , in milli- m etres, t o be used Reproduced by IHS under license with BSI ~ BS AU 60 : Part :SUBSEC*4-5A B S*AU *SO: PTL BS I 4.6a : Subsection : Minimum overall width, = (bias-belted, diag onal bias and radial stru ction) wi th nominal aspect ratio H /S b 50 mou n ted on 5" tapered ri ms, th e coeffi ci en ts for th e calculation of tyre dimensions shall be as given i n table i s equal t o th e prod- u ct of design tyre section wi dth , priate coeffi cien t, 972 Wmin Wmin, The m ini mu m overall width, 162 669 3 996 6.2 Calculation of "minimum overall tyre dimensions" 6.2.1 96 U s, Table - Coefficients for calculation of tym dimensions and th e appro- c (see table 3): Wmln = sc 6.2.2 Minimum overall diameter, Do,,,¡,, I Bias-beltedl Do,,,in,i s equal t o th e Dr, plus twi ce th e produ ct of The m i n i m u m overall diameter, nominal ri m diameter, design tyre section coeffici ent, d height, H, and th e appropriate (see table ) : Diagonal I Radial I B I D I R I 0.8 II 0,4 I ,081 07 I O 96l 0,971 I 0.4 1 , O8I O7 [ 0, 96 I 0, 97 I 0, 8I 0.4 I , O5I ,o4 I 0,96 I 0,97 I 1 I 0.8 ) Figure is based on regular service tyres The user should recognize that deep treads and corresponding increased overall diameters may be used for certain specialized tyres For tyres H/S< I 50 and/or di fferen t concept tyres and rims, other coeffi ci en ts wi l l be defined 6.3 Calculation of "maximum overall tyre dimensions in service" This calculation is for use by vehicle manufacturers i n designing for tyre clearance Tyre dimensions 6.3.1 for traction wheels and steering wheel s of agricul- For th e relevant dimensions of tyres (m etri c series) Maximum overall width in service, W ,, tu ral tractors and machines, and for agricultural imThe maxim u m overall wi d th i n service, Wmax, is to th e produ ct of th e design tyre secti on wi dth, th e appropriate coeffi cient, w , u equal A (see table 3) : = su It includes protective ribs, pl ements, see annex S, and lettering, embellishments, manufacturing tolerances and g rowth due t o service M eth od of measurement of tyre dimensions Before being measured, th e tyre shall be mou nted on 6.3.2 i ts measuring rim, i n fl ated wi th air or ni trogen to th e Maximum overall diameter in service, Do,, recom m ended pressure, m i n i m u m of The maxi mu m overall diameter i n service, equal to th e nominal ri m diameter, D, , produ ct of th e design tyre section height, appropriate coefficient, Do.max, = D r + It b DO,mx,i s plus twi ce th e H, 24 and all owed to stand for a h a t normal room temperature, after which th e inflati on pressu re shall be readjusted t o th e original value and th e (see table 3) : m b includes manufacturing tolerances, th e di fferen t types of tread patterns (see footn ote t o tabl e 3) Tyre and ri m coordination and g rowth due to service 9.1 Approved rim widths For al l types of tyres (for tractor drive, tractor steer, i mplement and garden tractor wheel s) of al l stru ctu res 6.4 Coefficients for calculation of tyre dimensions (bias-belted, m ou nted on diagonal/bias 5" and radial constru cti on) tapered rims, th e coeffi ci en ts for th e calculation of approved ri m wi dth s shall be as given in For all types of tyres (for tractor drive, tractor steer, tabl e im plem ent and garden tractor wheels) of al l stru ctu res standardized ri m from th e fi rst colu m n of table Reproduced by IHS under license with BSI The values shall be rounded t o th e nearest B S I BS%AU*50:PTL : SU B SEC*4 5A 9b ~ - minimum maximum Aspect ratio, 90 to 70 HIS % ) For tyres with HIS = 95 and HIS 65 andlor different concept tyres and rims, other coefficients may be defined Reproduced by IHS under license with BSI Lb2 bb9 BS AU Table coefficients for calculation of approved rim widths Rim width m b4 LL7 m 50 : Part : Subsection 4.6a : 1996 For minimum and maximum approved rim widths for standardized nominal tyre sections, see annex B 9.2 Approved rim contours For approved rim contours for ranges of existing tyres, see annex C BS AU 60 : Part : Subsection 4.6a : 996 An nex A (n orm ati ve) Tyre d i m en si on s Nomi nal l y r e design dimensions, section Measu ri ng wi d th ri m wi d th Section SN code wi d th S mm O0 00 50 00 00 50 4.50 00 5.50 5.50 00 00 00 7.00 00 00 00 8.00 00 00 00 00 10 00 1 o0 1 o0 12 00 13 00 13 00 14 00 14 00 15 00 16 00 16.00 17 00 18 00 18.00 18.00 20 00 20 00 21 o0 23 00 23 00 25 00 27 00 27 00 110 120 130 140 50 160 170 180 90 200 21 o 220 230 240 250 260 270 280 290 300 320 340 360 380 400 420 440 460 480 500 520 540 560 580 600 620 650 680 71 O 750 800 850 900 NOTE - Section h ei g h t, H, at nomi nal aspect rati os HlS 90 85 80 75 90 99 108 117 126 135 44 153 162 171 180 189 198 207 21 225 234 243 252 261 270 288 306 324 85 94 102 80 88 96 104 112 120 128 136 - - - - 111 119 128 136 145 153 162 170 179 187 196 204 213 221 230 238 247 255 272 289 306 - - - - - - - - - - - - - - - - - - - - - - - - 168 176 184 192 200 208 216 224 232 240 256 272 288 304 320 336 352 368 384 400 416 432 448 464 480 496 520 544 568 - - Reproduced by IHS under license with BSI (YO) : 70 65 - - 84 91 98 105 112 119 - 98 105 113 120 128 111 80 85 - - - - - - - 83 90 - - 173 180 188 195 203 210 218 225 240 255 270 285 300 315 330 345 360 375 390 405 420 435 450 465 488 510 533 563 - 50 - - - - - 175 i82 189 96 203 21 o 224 238 252 266 280 294 308 322 336 350 364 378 392 406 420 434 455 476 497 525 560 - - - 85 91 98 104 - - - - - - - - I - - 176 182 189 195 208 221 234 247 260 273 286 299 31 325 338 351 364 377 390 403 423 442 462 488 520 553 174 180 192 204 21 228 240 252 264 276 288 300 31 324 336 348 360 372 390 408 426 450 480 51 O 540 - - - - - - - - 176 187 198 209 220 231 242 253 284 275 286 297 308 31 330 34 358 374 391 41 440 468 495 - - - 180 190 200 21 o 220 230 240 250 260 270 280 290 300 31 O 325 340 355 375 400 425 450 - - - - - These values serve as a guideline for design of tyre dimensions, metric series, for tyres mounted on (codedesignateci) 98 110 122 129 141 148 160 171 178 190 197 21 221 228 244 251 258 275 282 289 295 31 343 357 380 404 41 441 455 479 503 516 540 564 577 591 625 , 645 676 71 744 798 852 886 mm '5 tapered d ropcen tre ri m s B S I B S* AU * SO: P TI I :SUBSEC*4=5A II624669 YLL9 b B L 96 BS AU 60 : Part : Subsection 4.6a : 1996 Annex B (n orm ati ve) Approved ri m widths The values given i n table B l are th e minimum and maximum approved ri m widths for metric seri es tyres of aspect ratios, H /S , 90 to 70, inclusive, mounted on For tyres wi th Hl S = 95, and HlS Table B - 5" tapered d ropcen tre rims (codedesignated) d 65, other ri m widths may be defined Approved ri m wi dth s for tyres wi th aspect ratios 90 to 70, i n cl u si ve Nominal secti on wi d th SN mm O0 110 120 130 140 150 160 170 180 190 200 21 o 220 230 240 250 260 270 280 290 300 320 340 360 380 400 420 440 460 480 500 520 540 560 580 600 620 650 680 71 O 750 800 850 900 Approved ri m width code 00 00 50 00 00 50 50 5.00 5.50 50 00 00 00 00 00 00 00 8.00 00 00 00 00 10 00 1 o0 1 o0 12.00 12 00 13 00 14 00 14 00 15 00 15 00 16 00 16.00 18 00 18 00 18 00 20 00 20 00 21 o0 23 00 23 00 25 00 27 00 m ax 50 00 50 50 00 50 50 00 00 00 00 00 00 00 00 00 00 10 00 10 00 10 00 1 o0 1 o0 12 00 13 00 13 00 14 00 15 00 16 00 16 00 16 00 18 00 18 00 20 00 20 00 21 o0 21 o0 21 o0 23 00 25 00 25 00 27 00 27 00 27 00 27 00 Reproduced by IHS under license with BSI ~~ BSI BS * AU* S O: P TL ~ :SUBSEC*YAA 9b Lb2 Ybb9 05bYL2 W T3 W BS AU 60 Part : Subsection 4.6a : 1996 : Annex C (i n form ati ve) Approved ri m contours c.1 This annex gi ves i n form ati on additional t o 9.2 c.2 I n addi ti on to th e measuring ri m wi d th calcu- Wh ere W ri m s are sh own DW ri m s wi t h equivalent flanges are perm i tted l ated accordi n g t o 6.1 and th e approved ri m wi d th s accordi n g t o 9.1 , approved ri m contou rs for ranges of and exi sti n g tyres are gi ven in tabl es C l to C.4 The tyre c.3 m anu factu rer shall be consu l ted for th e preferred ri m be su lted for fi rm ati on of th e su i tabi li ty of th e tou rs wi th i n th e approved ri m contou rs tyreh vh eel assembly for th e i n ten d ed servi ce I The tyre th e r i m b h e e l man u factu rer shall Approved rim contours l yr e section code Nominal rim diameter code 801 95 40 W6 21 01 95 44 W6, W7 230/95 32, 36, 40, 44, 48 W7, W8, W8L 2701 95 48, 54 W8, W8L W9, W1 O Table C.2 - Approved rim contours - "75" series tyres Nominal rim diameter code Approved rim contours 680P5 32 DW20A, DW21 A 620P5 26 30, 34 Tyre section code I Table C.3 I I ~~ ~ ~~ l y r e section code Nominal rim diameter code Approved rim contours 320ff O 24, 28 w , w1 , w 1 36OPO 24 28 w1 , w1 , w 380/70 24, 28 w1 , w1 2, w 420ff O 24, 28, 30 W1 2, W1 3, W1 4L 480PO 26, 28, 30, 34 38 W1 4L W1 5L, W1 6L 520/70 30 34 38 W1 5L W1 6L W1 8L 38 W1 8L 620/70 26 DW2OA 71 0ffO 38 DW23A 580PO DW20A - Approved rim contours - "70" series tyres ~ Reproduced by IHS under license with BSI I I BS AU 60 : Part Subsection 4.6a : : 1996 Table C.4 - Approved rim contours - "65" series tyres I Reproduced by IHS under license with BSI 4401 65 4, w , W1 4L 480/65 4, W1 4L W1 5L 5401 65 I 4, , , , 4, I W1 6L W1 8L 600/65 28, 4, W1 8L 650/65 , 42 DW20A I BSI BS AU 60 BSUAU* SO: P TL : : S UB S E C * Y * A 96 Part : Subsection 4.6a : W 3624b69 05b4L22 L7b W 1996 Annex D (i n form ati ve) Bi bl i og raph y 11 I i21 I31 I S 4251 -1 : 1992, Tyres (ply rating marked series) and rims for agricultural tractors and machines Part 7: Tyre designation and dimensions I S 4251 -2:1 992, Tyres (ply rating marked series) and rims for agricultural tractors and machines Part 2: Tyre load ratings IS0 425141992, Tyres (ply rating marked series) 10 Reproduced by IHS under license with BSI and rims for agricultural tractors and machines Part 4: Tyre classification and nomenclature 141 I S 4251-5: 1992,Tyres (ply rating marked series) and rims for agricultural tractors and machines Part 5: Log skidder tyres i51 8664:1992, Agricultural tractor drive-wheel tyres - Service description (load index - speed symbol) marked tyres IS0 BS AU 50 Part Subsection : List of references See n ati on BSI 1996 Reproduced by IHS under license O with BSI foreword : 4.5a : 1996 BS I BS*AU*50: PTL BS AU 50 Part : : Subsection 4.5a : 1996 I S 7867-1 1996 : BSI :SUBSEC*4.5A - %b Lb2Ybb9 0564324 T49 British Standards Institution Standards It at the internationai level It is BSI is the independent nationai body responsible for preparing British presents the UK view on in Europe and st an- incorporated by Royal Charter Contract requirements A British Standard does not purport to include contract aii the necessary provisions of a Users of British Standards are responsible for their correct application Revisions British Standards are updated by amendment or revision Users of should make sure that they possess the latest amendments or aim of BSI to improve the @ty British Standards editions grateful if anyone findingan inaccuracy or ambiguity while using this It is the constant would be of our products and services We British Standard would inform the Secretary of the responsible technical committee, the identity of which can be found on the inside front cover 0181 996 7400 BSI offers members an individual updating service called subscribers automaticaiiy receive the latest editions of Tel 0181 996 9o00, Fax PLUS which ensures that standards Buying standards Orders for ail BSI, internaüonal and foreign standards publications should be addressed to Customer Services, Sales Department at Chiswick Tek 0181 996 7000; Fax 0181 996 7001 In response to orders for international standards, it is BSI policy to supply the BSI implemenMon of those that have been published as British standards, unless otherwise requested Information on standards BSI provides a wide range of information on nationai, European and internaüonai standaràs through its Library, the Standardline Database, the BSI Information its Technical Help to Exporters Service Contact the at Chiswick Tel O181 7111; Fax 0181 996 7048 Technology Service (BITS) and Information Department 996 are kept up to date with standards developments and standards For details of these and other benefits contact Customer Services, Membershq at Chiswick Tel: 0181 996 7002; Fax 0181 996 7001 Subscribing members of BSI receive substantial discounts on the purchase price of Copyright Copyright subsists in aii BSI publications BSI also holds the copyright, in the UK, of bodies Except as permitted the publications of the internaüonai stan-on under the Copyright, Desi i and Patents Act 1988 no extract may be reproduced, stored in a re t r i e d system or tmmmtkd - in any form or by any means - electronic, recording or otherwise without prior wriüen permission from BSI This does not preclude the free use, in the course of implementing the standard, of photocopying, necessary details such details are to be as symbols, and size, type or grade designations If these used for any other purpose than implementation then the prior written permission of BSI must be obtained If permission is gran- the terms may include royaity payments or a licensing agreement Details and advice 389 Chiswick High BSI k: 389 Chisvc can be obtained fihm the Copyright Manageq BSI, Road, London W4 A L High Road London w4 4AL ISB N O 680 26058 Reproduced by IHS under license with BSI AUW4