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It further sets testing rules, including inspection before concealment, leaving joints exposed for observation, rejection criteria, and curing time for UPVC solvent-cement joints.",{"@graph":14,"@context":72},[15,34,55],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/research-report/","Research & 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works, applicable standards, required authorities and approvals, drawings and dimensions, supervision, inspection stages, and handling existing services for alterations and interruptions.","Answer",{"name":65,"@type":60,"acceptedAnswer":66},"When may underground or enclosed pipework be covered?",{"text":67,"@type":63},"Underground or enclosed work must not be covered or concealed until it has been inspected and tested to approval, and joints should remain exposed for observation during tests.",{"name":69,"@type":60,"acceptedAnswer":70},"What are key requirements for UPVC pipework testing?",{"text":71,"@type":63},"Solvent cement joints must be cured for at least 24 hours before testing, ensuring the joints and supports meet the required test 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\nSTEELPIPE  \nCOPPER PIPE  \nPOLYETHYLENE PIPE  \nUPVC PIPE  \nMISCELLANEOUS  \nWATER SUPPLY AND SANITARY DRAINAGE:Hot and cold water service andmains supply to point of connection including zainwater downsports;sanitary drainageand trade waste drainage incuding soil and waste piping systems to the point ofconnection to the drainage system;and associated pipework,reticulation,accessories,fixtures and fittings and associated apparatus.  \nREFERENCE DOCUMENTS:The following standards of the latest edition are  \nThe installation shall be carried out in accordance with Chinese Standard Codes,JIS orequivalent.  \nWhere specific standards or codes are referred to in the Bills of Quantities or theSpecifications or the drawings,other authoritative standards that ensure an equal orhigher quality than the standards mentioned will also be acceptable.It will beincumbent on the Contractor to venify the equal or higher quality and to submitcomparative standards (both specified and proposed standards)for review.  \nSteel Tubes  \nCopper pipe  \nCapillary fittings for copper pipeCopper fittings for waste  \nPolyethylene pressure pipePolyethylene fittingsPolyethylene pipe installationPlastic waste fittings  \nUPVC soil&waste fittingsUPVC pressure pipesUPVC nubber ring jointUPVC pipe installationSolvent cementPlastic waste fittings  \nPaint colorsPlugs for fixturesStainless steel materialBasinsVitreous China  \nStainless steel sinks and drainersVitreous china WC'sLaundry troughs  \nToilet seat of molded plasticPipeline identificationFlushing cisternsCopper alloy tapsCopper alloy gate valvesFire hose reel installation  \n### 3.1.3 AUTHORITIES AND APPROVALS-PLUMBING\n\nAUTHORITIES:  Authorities whose requirements apply to the work of this section  \ninclude:  \n·the Provincial Building Board or Town Building Authority  \n·the Provincial Health Division  \n·the Fire Fighting Service,Department of Civil Aviation  \nAPPROVALS:  Documents evidencing approval of such authorities shall besurrendered before the Certificate of practical Completion is issued.  \nWORKS BY AUTHORITY:If the responsible authority elects to perform or supplypart of the works,make the necessary arrangements and pay any fees.  \n### 3.1.4 DRAWINGS AND DIMENSIONS\n\nDJAGRAMMATIC LAYOUTS:   Drawings showing pipework layouts arediagrammatic only.Before commencing work,verify the exact positions of fixtures,appliances and the like to which the pipework is to be connected.  \nAS-BUILT DRAWINGS:  If requested provide 'As-built'drawings showing thelocations of pipes and fittings,including the depth of underground pipework,positionsof control valves,and the like.Give co-ordinate dimensions where applicable.Donot use scaled dimensions.Use given dimensions only.  \n### 3.1.5 SUPERVISION\n\n鑫  \n8°  \n戴  \n赣  \n基  \n'  \nPERSONNEL:  Work shal be done by under the direct supervision of appropriatelylicensed tradesmen.  \n### 3.1.6 INSPECTION\n\nGive sufficient notice so that inspection may be made at the following stage:  \n·Trenches excavated and ready for pipe laying  \n·Work ready for specified testing  \n·Underground or enclosed work ready to be covered upor concealed  \n·At any other stage as required  \n### 3.1.7 EXISTING SERVICES.\n\nALTERATIONS:Deal with existing services as necessary to complete the workspecified in this section.Take precautions when altering metallic service pipeworkthat may form part of an electrical earth electrode and ensure that a continuos path toearth is maintained at all times.  \nINTERRUPTIONS:Obtain approval before interrupting an existing service,andperform the work in accordance with an approved program so that the duration andnumber of interruptions is reduced to a minimum.  \n## 3.2 TESTING\n\n### 3.2.1 TESTING\n\nTESTS:   Supply apparatus and materials necessary,and carry out tests required bythe regulatory authorities in the presence of the authorized representatives and wherespecified,","cbCaicQznF5ZXMhQ","https://ap.wps.com/l/cbCaicQznF5ZXMhQ","pdf",2976677,118,"English","# CHAPTER 3PLUMBING WORK\n## 3.1 GENERAL\n## 3.2 TESTING\n## 3.3 WORKMANSHIP","[{\"question\":\"What does Chapter 3 define under 3.1 General?\",\"answer\":\"It covers the scope of works, applicable standards, required authorities and approvals, drawings and dimensions, supervision, inspection stages, and handling existing services for alterations and interruptions.\"},{\"question\":\"When may underground or enclosed pipework be covered?\",\"answer\":\"Underground or enclosed work must not be covered or concealed until it has been inspected and tested to approval, and joints should remain exposed for observation during tests.\"},{\"question\":\"What are key requirements for UPVC pipework testing?\",\"answer\":\"Solvent cement joints must be cured for at least 24 hours before testing, ensuring the joints and supports meet the required test conditions.\"}]","CHAPTER 3 - PLUMBING WORK - 3 - GENERAL | PDF",297]