1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsWB9423_BSI_StandardColCov_noK_AW:BSI FRONT COVERS 5/9/08 12:55 Page 1Equipment used in the controlled removal of asbestos-containing materials Part 1: Controlled wetting equipment Sp
2、ecificationBS 8520-1:200nullBS 8520-1:2009 BRITISH STANDARDnullublishing and copnullright informationThe BSI copyright notice displnullyed in this docnullnullent indicnulltes nullhen the docnullnullent nullnulls lnullst issnullednullnull BSI 2009ISBN 9null8 0 580 nullnull5null8 8InullS 1nullnull0nul
3、l0nullnull0The nullollonulling BSI renullerences relnullte to the nullornull on this stnullndnullrd: nullonullnullittee renullerence HSnull1 Drnullnullt nullor conullnullent 09nullnull018995null Dnullnullublication histornullnullirst pnullnulllished nulls nullAS null0-1:200nullnullnullnulllished nul
4、ls BS 8520-1null Decenullnuller 2009nullmendments issued since publicationnullate nullenullt affected BRITISH STANDARDnull BSI 2009 null iBS 8520-1:2009nullontentsnullorenullord iiiIntrodnullction 11 Scope 12 Ternulls nullnd denullnitions 1null Design 2null Instrnullctions nullor instnullllnulltion
5、nullnd nullse 35 nullnullrning lnullnullels 4null nullonnullornullity nullnullrnulling 4nullnnenullesAnnenull A nullnornullnulltinullenull nullethod onull test nullor sinullilnullr nullonull nullronull needles 6Annenull B nullinnullornullnulltinullenull Snullnullnullnullry onull the nullse onull nul
6、letting nullgents 8Binullliogrnullphy 9Summarnull of pagesThis docnullnullent conullprises null nullront conullernull nulln inside nullront conullernull pnullges i to inullnull pnullges 1 to 10null nulln inside nullnullcnull conuller nullnd null nullnullcnull conullernullBS 8520-1:2009ii null null B
7、SI 2009BRITISH STANDARDThis page deliberately left blankBRITISH STANDARDnull BSI 2009 null iiiBS 8520-1:2009nullorenullordnullublishing informationThis pnullrt onull BS 8520 is pnullnulllished nully BSI nullnd cnullnulle into enullnullect on null1 Decenullnuller 2009null It nullnulls prepnullred nul
8、ly Snullnullconullnullittee HSnull1null1null Asbestos nullnder the nullnullthority onull Technicnulll nullonullnullittee HSnull1 Occupational health and safety managementnull A list onull orgnullninullnulltions represented on this conullnullittee cnulln nulle onulltnullined on renullnullest to its s
9、ecretnullrynullSupersessionThis British Stnullndnullrd is nullnullsed on nullAS null0-1:200nullnull nullhich is nullithdrnullnullnnullnullelationship nullith other publicationsThis British Stnullndnullrd is one pnullrt onull null seriesnull Enulluipment used in the controlled remonullal of asbestosn
10、ullcontaining materialsnull the other pnullrts onullnullhich nullre:null nullart 2null nullegatinulle pressure units null nullpecinullcationnullnull nullart 3null Operationnull cleaning and maintenance of class null nullacuum cleaners null nullode of practicenullThis British Stnullndnullrd is one on
11、ull three pnullrts denulleloped nullronull the nullAS null0 docnullnullentsnull Enulluipment used in the controlled remonullal of asbestosnullcontaining materials:null nullart 1null nullontrolled nulletting of asbestosnullcontaining materials null nullpecinullcationnullnull nullart 2null nullegatinu
12、lle pressure units null nullpecinullcationnullnull nullart 3null Operationnull cleaning and maintenance of class null nullacuum cleaners null nullode of practicenullnullanullard nullarningsnullnullnullnullnullnullnullnull This British Stnullndnullrd cnulllls nullor the nullse onull snullnullstnullnc
13、es nullndnullor procednullres thnullt cnulln nulle innullnullrionulls to henulllth inull nulldenullnullnullte precnullnulltions nullre not tnullnullennull It renullers only to technicnulll snullitnullnullility nullnd does not nullnullsolnulle the nullser nullronull legnulll onulllignulltions relnull
14、ting to henulllth nullnd snullnullety nullt nullny stnullgenullnullse of this documentIt hnulls nulleen nullssnullnulled in the prepnullrnulltion onull this British Stnullndnullrd thnullt the enullecnulltion onull its pronullisions nullill nulle entrnullsted to nullpproprinulltely nullnullnulllinull
15、ed nullnd enullperienced peoplenull nullor nullhose nullse it hnulls nulleen prodnullcednullnullresentational conventionsThe pronullisions onull this stnullndnullrd nullre presented in ronullnulln nullinullenull nullprightnulltypenull Its renullnullirenullents nullre enullpressed in sentences in nul
16、lhich the principnulll nullnullnullilinullry nullernull is nullshnullllnullnullnullommentarynull enullplanation and general informatinulle material is presented in smaller italic typenull and does not constitute a normatinulle elementnullBS 8520-1:2009inull null null BSI 2009BRITISH STANDARDnullontr
17、actual and legal considerationsThis pnullnulllicnulltion does not pnullrport to inclnullde nullll the necessnullry pronullisions onull null contrnullctnull nullsers nullre responsinullle nullor its correct nullpplicnulltionnullnullompliance nullith a British Standard cannot confer immunitnull from l
18、egal obligationsnullIn pnullrticnulllnullrnull nullttention is drnullnulln to the nullollonulling stnulltnulltory regnulllnulltions:The nullontrol onull Asnullestos Regnulllnulltions 200null null1nullThe nullontrol onull Asnullestos Regnulllnulltions nullNorthern Irelnullndnull 200null null2nullThe
19、nulllectricnulll nullnullnullipnullent nullSnullnulletynull Regnulllnulltions 199null nullnullnullThe nulllectricity nullt nullornull Regnulllnulltions 1989 nullnulls nullnullendednull nullnullnullThe nulllectricity nullt nullornull Regnulllnulltions nullNorthern Irelnullndnull 1991 null5nullThe Hen
20、ulllth nullnd Snullnullety nullt nullornull etcnull Act 19nullnull nullnulls nullnullendednull nullnullnullThe nullnullchinery Directinulle 98nullnullnullnullnullnull nullnulls nullnullendednull nullnullnullThe Snullpply onull nullnullchinery nullSnullnulletynull Regnulllnulltions 2008 null8nullThe
21、nullronullision nullnd nullse onull nullornull nullnullnullipnullent Regnulllnulltions 1998 nullnulls nullnullendednull null9nullThe nullronullision nullnd nullse onull nullornull nullnullnullipnullent Regnulllnulltions nullNorthern Irelnullndnull 1999 nullnulls nullnullendednull null10nullThe Sinul
22、lple nullressnullre nullessels nullSnullnulletynull Regnulllnulltions 1991 nullnulls nullnullendednull null11nullThe nullontrol onull Snullnullstnullnces Hnullnullnullrdonulls to Henulllth Regnulllnulltions 2002 nullnulls nullnullendednull null12nullThe nullnullnnullgenullent onull Henulllth null Sn
23、ullnullety nullt nullornull Regnulllnulltions 1999 nullnulls nullnullendednull null1nullnullThe Specinulll nullnullste nullScotlnullndnull Regnulllnulltions 200null nullnulls nullnullendednull null1nullnullThe Hnullnullnullrdonulls nullnullste Regnulllnulltions nullnullnglnullnd nullnd nullnulllesnu
24、ll 2005 nullnulls nullnullendednull null15nullThe Hnullnullnullrdonulls nullnullste Regnulllnulltions nullNorthern Irelnullndnull 2005 nullnulls nullnullendednull null1nullnullBRITISH STANDARDnull BSI 2009 null 1BS 8520-1:2009nullntroductionThis British Stnullndnullrd hnulls nulleen denulleloped to
25、pronullide the nullsnullestos renullonullnulll indnullstry nullith null specinullcnulltion nullor enullnullipnullent nullsed in the controlled nulletting onull nullsnullestos-contnullining nullnullterinulllsnull It is intended to pronullote the nullnullnnullnullnullctnullre onull enullnullipnullent
26、nullnd nullnullterinullls thnullt nullill enullnullectinullely nullet nullsnullestos-contnullining nullnullterinullls nullnd snullppress nullsnullestos nullnullres nulloth dnullring nullnd nullnullter the nullsnullestos renullonullnulll processnull1 ScopeThis British Stnullndnullrd specinulles renul
27、lnullirenullents nullor enullnullipnullent nullor the controlled nulletting onull nullsnullestos-contnullining nullnullterinulll nullAnullnullnull nully innullection or sprnullying onull linullnullid to snullppress the relenullse onull nullirnullorne nullsnullestos nullnullresnullIt is nullpplicnull
28、nullle to the nulletting onull Anullnull nully:null nullnullltipoint innullection onull sprnullyed conulltingsnull insnulllnullting nullonullrdnullthernullnulll insnulllnulltion nullnd conulltings on pipesnull tnullnnulls nullnd nullesselsnullnull sprnullying nullith lonull-pressnullre sprnully henu
29、llds onull insnulllnullting nullonullrd nullnd other nullnullterinullls less thnulln 10 nullnull thicnullnull2 nullerms and denullnitionsnullor the pnullrposes onull this pnullrt onull BS 8520null the nullollonulling ternulls nullnd denullnitions nullpplynull2null1 needlethinnull pointed hollonull d
30、enullice thronullgh nullhich linullnullid cnulln nullonullnullOTE nulllockages to the nullonull and damage to needles can be reduced by the use of designs in nullhich linulluid can nullonull out through the peripheral nullallnull2null2 lonull-pressure spranull headdenullice nullhich nullerosolinulle
31、s null linullnullidnullOTE nullonull pressure is considered as a manullimum pressure of 3 barnull2nullnull valvedenullice thnullt stnullrtsnull shnullts onullnullnull regnulllnulltes or controls the nullonull onull linullnullid2nullnull nulletting agentlonull-hnullnullnullrd nullgent nullhich incren
32、ullses the nullnullility onull nullnullter to nullet nullnd penetrnullte into the Anullnull2null5 nulletting equipmentenullnullipnullent nullhich delinullers nulletting solnulltion null2nullnullnull to Anullnull in nullcontrolled nullnullnner2nullnull nulletting solutionnullinulltnullre onull nullet
33、ting nullgent null2nullnullnull nullnd pnullrticle-nullree nullnullter delinullered nulls null solnulltion nullronull the nulletting enullnullipnullent to Anullnull to prenullent nullsnullestos nullnullres nullronull nulleconulling nullirnullornenullOTE nulln order to reduce emissions of airborne nu
34、llbres to as lonull as reasonably practicable and to prenullent dry strippingnull it is important to ensure that the nulletting solution has been fully absorbed by the Anullnullnull so that no dry areas remainnull The rate of absorption nullill depend on a number of nullariables and no single denull
35、nitinulle test has yet been denulleloped to indicate the enulltent of the absorptionnullBS 8520-1:20092 null null BSI 2009BRITISH STANDARDnull nullesignnullnull1 nulleneralThe nulletting enullnullipnullent shnullll nulle cnullpnullnullle onull delinullering null nulletting solnulltion to Anullnull t
36、hronullgh tnullnulles nullttnullched to nullnulllnulles nullnd needlenullsnull or nulllonull pressnullre sprnully henulldnullnullhere nullore thnulln one needle is nullsednull the rnullte onull nullonull onull the nulletting solnulltion nullronull the needles shnullll nulle controllnullnullle nullnd
37、 sinullilnullr nullt enullch needlenull regnullrdless onull elenullnulltionnullnullOTE 1 Annenull A describes honull to measure similar nullonullsnull Annenull null is a summary of the use of nulletting solutionsnullnullnulllnulles shnullll nulle cnullpnullnullle onull delinullering sinullilnullr nu
38、llnullonullnts onull nulletting solnulltion nully nulleing set or locnulled to null positionnull Inull nullnulllnulles cnullnnot nulle set or locnullednull null nullethod onull recording shnullll nulle instnulllled to ensnullre nulln enullen nullonull thronullgh the needles nullhen opernullted nulln
39、der nulleld conditionsnullnullOTE 2 An automatic timer can be incorporated nullhich is capable of starting and stopping the nullonull of nulletting solution to the Anullnull at set timesnullnullnull2 nulleedle-dispensed volume tolerancenullhen nullenullsnullred nullsing the procednullre in Annenull
40、Anull the nullnullrinulltion in the nullolnullnulle onull nulletting solnulltion delinullered nully enullch needle shnullll nulle nullithin 10null onull the nullnullernullgenullnullnullnull Spranull head rate of nullonullnullhere the nulletting enullnullipnullent incorpornulltes null lonull-pressnul
41、lre sprnully henulldnullthe rnullte onull nullonull onull the nulletting solnulltion nullronull the nonullnullle shnullll nulle:nullnull consistentnull nullndnullnull onull null nullelocity snullnullnullcient to dnullnullpen the Anullnull nullithonullt distnullrnulling itnullnullOTE nullnullisturbin
42、gnull refers to both dislodging particles and creating airborne nullbresnullnullnullnull Equipment using mains pressurenullhere nulletting solnulltion is intended to nulle delinullered nully nullnullins nullnullter pressnullrenull the nullnullter pressnullre shnullll nulle snullnullnullcient to null
43、chienulle delinullery onull the nulletting solnulltion to the Anullnullnull The inlet pressnullre shnullll nulle controllnullnullle nullith null pressnullre-regnulllnullting nullnulllnullenull A pressnullre nullooster shnullll nulle nullnullnullilnullnullle in cnullse the nullnullins nullnullter pre
44、ssnullre is not nulldenullnullnullte to nullchienulle delinullery onull the nulletting solnulltionnullA nulletting solnulltion nulllter cnullpnullnullle onull nullltering to null nullnullnullinullnullnull pnullrticle dinullnulleter onull null0 nullnull shnullll nulle nulltted to the nulletting enull
45、nullipnullent to nulllter the nulletting solnulltion nullenullore it renullches the point onull innullection or sprnullynullnullnull5 nullailure nullarning facilitnullThe nulletting enullnullipnullent shnullll incorpornullte null nullnullrning nullnullcility nullhich is nullctinullnullted inull the
46、pressnullre or nullonull rnullte decrenullses to nulleronullnullOTE The nulletting enulluipment can also incorporate an electricity failure indicatornullBRITISH STANDARDnull BSI 2009 null nullBS 8520-1:2009null nullnstructions for installation and usenullnull1 nullenernulll gnullidnullnce docnullnul
47、lentnulltion on the nullollonulling shnullllnull nulls nullnullininullnullnullnull nulle pronullided nullith enullch piece onull nulletting enullnullipnullentnullnullnull The technicnulll specinullcnulltionsnullnullnull The intended nullse nullnd linullitnulltions onull the nulletting enullnullipnul
48、lentnullcnull The innullornullnulltion on the electricity snullpply renullnullired nullnd nullny snullnullety denullices renullnullired nullenullgnull enullrth lenullnullnullge circnullit nullrenullnullersnullnullnullOTE Attention is dranulln to The nulllectricnulll nullnullnullipnullent nullSnullnu
49、lletynullRegnulllnulltions null3nullnulldnull The rnullnge onull nullnullter pressnullres snullitnullnullle nullor the inletnullenull The reconullnullended linullnullids or nulldditinulles nullor nullse nullith the enullnullipnullentnullnullnull The rnullnge onull nullnullter pressnullres nullnullnullilnullnullle nullronull the onulltletnull nullhether needle or sprnullynullgnull The reconullnullended nnullnullnuller onull needles thnullt cnulln nulle nullsed in series nullnd still nullnullintnullin null sinullilnullr nullonull rnullte nullronull enullch needle nullsee nullnull1nullnullnu
