SANS 50295-2-1991 Vitrified clay pipes and fittings and pipe joints for drains and sewers Part 2 Quality control and sampling《排水及污水用陶瓷粘土管、配件及管接头 第2部分 质量控制及取样》.pdf

1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA

2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any

3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-19731-5 SANS 50295-2:1991Edition 1, EN amdt 1 and nat. amdt 1EN 295-2:1991Edition 1 and amdt 1Any reference to SABS EN 295-2 is deemedto b

4、e a reference to this standard(Government Notice No. 1373 of 8 November 2002)SOUTH AFRICAN NATIONAL STANDARD Vitrified clay pipes and fittings and pipe joints for drains and sewers Part 2: Quality control and sampling This national standard is the identical implementation of EN 295-2:1991 and EN ame

5、ndment 1, and is adopted with the permission of CEN, rue de Stassart 36, B-1050 Brussels. Published by Standards South Africa 1 dr lategan road groenkloof private bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa SANS 50295-

6、2:1991 Edition 1, EN amdt 1 and nat. amdt 1 EN 295-2:1991 Edition 1 and amdt 1 Table of changes Change No. Date Scope EN amdt 1 1999 Amended to update referenced standards, to add a definition, to correct information in a table, to correct cross references, to modify wording in titles and clauses an

7、d to replace the clause on rubber sealing elements with a clause on regular tests and sampling for rigid fairings. Nat. amdt 1 2007 Amended to change the designation from SABS to SANS, with no technical changes. National foreword This South African standard was approved by National Committee StanSA

8、TC 5120.61, Construction standards, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in May 2007. This SANS document supersedes SABS EN 295-2:1991 (edition 1). EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NOR

9、MEN 295-2:1991/A1March 1999ICS 23.040.50English versionVitrified clay pipes and fittings and pipe joints for drains andsewers - Part 2: Quality control and samplingTuyaux et accessoires en grs et assemblages de tuyauxpour les rseaux de branchement et dassainissement -Partie 2: Contrle de la qualit e

10、t chantillonnageSteinzeugrohre und Formstcke sowie Rohrverbindungenfr Abwasserleitungen und -kanle - Teil 2:Gteberwachung und ProbenahmeThis amendment A1 modifies the European Standard EN 295-2:1991; it was approved by CEN on 28 January 1999.CEN members are bound to comply with the CEN/CENELEC Inter

11、nal Regulations which stipulate the conditions for inclusion of thisamendment into the relevant national standard without any alteration. Up-to-date lists and bibliographical references concerning suchnational standards may be obtained on application to the Central Secretariat or to any CEN member.T

12、his amendment exists in three official versions (English, French, German). A version in any other language made by translation under theresponsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions.CEN members are the nation

13、al standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE

14、 FR NORMUNGCentral Secretariat: rue de Stassart, 36 B-1050 Brussels 1999 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 295-2:1991/A1:1999 EPage 2EN 295-2:1991/A1:1999ForewordThis Amendment EN 295-2:1991/A1:1999 to EN 295-2:1991 has

15、 been prepared by Technical Committee CEN/TC165 “Waste water engineering“, the secretariat of which is held by DIN.This Amendment to the European Standard EN 295-2:1991 shall be given the status of a national standard, eitherby publication of an identical text or by endorsement, at the latest by Sep

16、tember 1999, and conflicting nationalstandards shall be withdrawn at the latest by September 1999.For adaptation of EN 295-2:1991 to new published European Standards amendments were necessary. EN 295-2:1991 in the French version contains editorial mistakes concerning the use of auxiliary verbs. Fora

17、daptation of the French version to the English and German version this amendment also contains a list of additionaleditorial amendments concerning only the French version und therefore are not put at disposal in English andGerman language.The CEN-members will decide whether the changes will be publi

18、shed separately from the original version of EN295:2:1991 or the changes will be incorporated in a revised publication of the standard. These options are allowedunder clause M.3 of the CEN/CENELEC internal regulations Part 3.According to the CEN/CENELEC Internal Regulations, the national standards o

19、rganizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden,Switzerland and the United Kingdom.Amendments to EN 295-

20、2:19911. Sub-clause 1.2 Delete “EN 29002:1987Quality Systems - Model for quality assurance in production and installation”Insert “EN ISO 9001:1994Quality Systems - Model for quality assurance in design, development, production,installation and servicing (ISO 9001:1994)”Insert “EN ISO 9002:1994Qualit

21、y Systems - Model for quality assurance in production, installation andservicing (ISO 9002:1994)”2. Sub-clause 1.3 Insert: “1.3.3 new joint design : A joint design of substantially different shape and / or substantially differentmaterial than previously made by a manufacturer.”3. Sub-clause 1.4.2 De

22、lete in 5th line “EN 29002”Insert “EN ISO 9001 or EN ISO 9002 or equivalent”4. Sub-clause 1.4.3 Delete in last paragraph last line “and EN 45012”Insert “,EN 45012 or equivalent”5. Table 1 Item 7, column 3 delete “Impermeability” insert “Watertightness”column 4 delete “2.18” insert “2.14”column 5 del

23、ete “13” insert “9”6. Sub-clause 1.5 Delete in title “(EN 29002 : 1987 Clause 4.9)”.7. Sub-clause 1.6 Delete in title “(EN 29002 : 1987 Clause 4.10)”.8. Clause 2 1st paragraph 1st line delete “EN 29002 : 1987”. Insert “EN ISO 9002”2nd paragraph 2nd line delete “EN 29002 : 1987 Clause 4.9.4”. Insert

24、“EN ISO 9002”2nd paragraph indent (d) and (f) last lines delete “EN 29002 : 1987 Clause 4.9.1.1”. Insert“EN ISO 9002”Page 3EN 295-2:1991/A1:19999. Clause 3 Delete in heading “(EN 29002 : 1987 Clause 4.9.3)10. Clause 3.2.1 3rd line delete “table 11”. Insert “table 12”.3rd line delete “table 10”. Inse

25、rt “table 11”.11. Sub-clause 3.2.3 (a) Insert after last sentence “For 2.9 of EN 295-1:1991 the AQL shall be 4% and theinspection level S3 of ISO 2859-1.”(b) Insert after last sentence “For 2.9 of EN 295-1:1991 the AQL shall be 4% and theinspection level S3 of ISO 3951.”12. Sub-clause 3.3 In the tit

26、le delete “of pipes”13. Sub-clause 3.4 In last line of heading delete “and”. At end of the heading insert “ and 2.18 - Airtightness”14. Sub-clause 3.5.1 4th line delete “table 11”. Insert “table 12”.4th line delete “table 10”. Insert “table 11”.15. Table 2 Delete heading “Impermeability 2.18”. Inser

27、t “Watertightness 2.14 and Airtightness 2.18”16. Sub-clause 3.6.2 In title delete “2.18 -Impermeability of fittings (excluding Junctions)”. Insert “2.14 -Watertightness - bends”.1st paragraph 2nd line delete “fitting”. Insert “bend”.2nd paragraph in lines 1,3,5, and 7 delete “fittings”. Insert “bend

28、s”.17. Sub-clause 3.6.3 In title delete “2.18 - Impermeability of fittings - junctions”. Insert “2.14 - Watertightness -junctions”.18. Sub-clause 3.7 In title delete “and 2.15 - Chemical resistance”.Insert “,2.15 - Chemical resistance and 2.18 - Airtightness of bends and junctions”19. Sub-clause 3.8

29、 Delete 2nd sentence. Replace with “One test piece shall be tested for each productionweek.”Delete in 3rd sentence “the mix”. Replace with “products made from that mix”20. Sub-clause 3.9.2 Delete in heading “(EN 29002 : 1987 Clause 4.5.4)”21. Sub-clause 3.10.1.1 Insert in first line after “compressi

30、on set” “(24h at 70 C)”22. Sub-clause 3.11 Delete this clauseInsert new clause 3.113.11 Regular tests and sampling for rigid fairings to 3.1.5 of EN 295-1 : 19913.11.1 DeformationDeformation tests shall be carried out at a rate of one sample from each dispensing uniteach day.3.11.2 IndentationIndent

31、ation tests shall be carried out at a rate of one sample from each dispensing uniteach day.3.11.3 Retest procedure and sampling for regular tests to 3.11.1 and 3.11.2In the event of a sample failing a test, select and test three further samples.Page 4EN 295-2:1991/A1:1999If a failure occurs on retes

32、t, the cause of the nonconformity shall be determined. Whencorrected, performance tests to clause 18 of EN 295 3:1991 shall be carried out forangular deflection and shear resistance for requirements to 3.3 and 3.4 of EN 295-1 :1991 on three joint assemblies. Should a failure occur, the batch shall be rejected.23. Sub-clause 3.12.1 In heading delete “table 10”. Insert “table 11”.24. Sub-clause 3.13.4 Delete in 1st line “assemblies”, insert “materials” Standards South AfricaThis s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .