1、BSI BS*5b27 BY W 3b24bb 0033373 3 BS 5627 : 1984 UDC 696.141.1 1621.643.4-036.5 O British Standards Institution. No part of this publication may be photocopied or otherwise reproduced without the prior permission in writing of BSI. British Standard Specification for Plastics connectors for use with
2、horizontal outlet vitreous china WC pans Raccordements en plastique pour cuvettes de WC en porcelainevitreuse sortie horizontale - Spcifications Kunststoffverbindungsstcke fr WC-Becken aus Sanitrporzellan mit waagerechtem Abflu British Standards Institution . :. COPYRIGHT British Standards Institute
3、 on ERC Specs and StandardsLicensed by Information Handling ServicesBSI BS*5b27 BL1 Lb2L1bb 0033372 5 m BS 5627 : 1984 Contents Page Foreword Inside front cover Committees responsible Back cover Specification Section one. General 1, Scope 2. Seals for WC spigots and pipework 3. Freedom from defects
4、4. Marking Section two. Materials 5. Ethylene vinyl acetate connectors (EVA) 6. Polypropylene copolymer connectors (PPI 7. Acrylonitrile butadiene styrene connectors ,$ (ABSI - - 3 (a);fiplasticized polyvinyl chloride (UPVCI Section three. Performance 8. Seals for WC spigots and pipework 9. Function
5、al test requirements 10. Frequencypf testing . Section four. Dimensions 11. General 12. Minimum wall thickness Foreword 1 1 1 1 1 1 2 2A 2 2 2 2 4 This revision of this British Standard has been prepared under the direction of the Building Services Standards Committee to specify plastics connectors
6、for use with horizontal outlet WC pans manufactured to the require- ments of BS 5503 : Parts 1 and 2 or to BS 5504 : Parts 1, 2 and 3 to enable their connection to new and existing drainage systems. It supersedes BS 5627 : 1978 which is withdrawn, Requirements are given for connectors manufactured f
7、rom several different plastics materials and because of Appendices A. Determination of vinyl acetate in ethylene/vinyl acetate copolymers (reference method) B. Environmental stress cracking test C. Impact test (PPI D. Impact resistance of fittings (ABS) E. Water test for pan connectors F. Air pressu
8、re test for pan connectors Tables 1. Testing schedule 2. Test portion of dry copolymer Figures 1. 90 o WC bend to convert to S or turned P trap with 110 mm 0.d. 170 spigot min. 2. 90 o WC bend to convert to S or turned P trap with 80 mm min. i.d. 230 spigot min. 3. 14 o WC bend with 110 mm 0.d. outl
9、et 4. 14 o WC bend with 80 mm min, i.d. outlet 5. 14 o WC bend socket to socket 6. 90 o WC bend socket to socket 7. Socket details 8, Environmental stress cracking test apparatus 9. Apparatus for impact test (PP) 10. Test piece 11. I Ilustration of water test 12. Illustration of air test Page 5 5 6
10、6 8 8 2 5 3 3 3 3 4 4 4 6 7 7 8 9 the varied nature of plastics materials in current use it has been decided to deal with each particular material in a separate clause. Thus connectors have to meet the requirements of the particular material clause as well as the other requirements. Attention is dra
11、wn to BS 4514 in which connectors manufactured from unplasticized PVC are specified, and in which cross reference is made to this standard. Compliance with a British Standard does not of itself confer immunity from legal obligations. . _. . . .- COPYRIGHT British Standards Institute on ERC Specs and
12、 StandardsLicensed by Information Handling Services BSI BS*5b27 84 m Lb24bb 0033373 7 m A A BS 5627 : 1984 British Standard specification for Plastics connectors for use with horizontal outlet vitreous china WC pans Section one. General 1. Scope This British Standard specifies materials, dimensions
13、and performance requirements for plastics WC connectors designed to connect horizontal outlet WC pans complying with BS 5503 : Parts 1 and 2 or BS 5504 : Parts 1,2 and 3 to discharge pipework systems of various materials complying with BS 65, BS 416, BS 437, BS 602 (b) the manufacturers name or mark
14、; (c) the material code, e.g. EVA, PP or ABS. 4.2 Other marking. The following additional marking shall be applied: (a) the nominal size and materials of the discharge pipework for which the connector is suitable, or, if the connector is suitable for all the materials comply- ing with the British St
15、andards listed in clause 1, alternatively it is permissible to mark the connector Universal, together with the appropriate nominal size or sizes; (b) the description of the connector. NOTE. Marking in a less permanent form, e.g. by means of a label, is acceptable. Section two. Materials 5. Ethylene
16、vinyl acetate connectors (EVA) 5.1 General. The connector shall be manufactured from an EVA copolymer with only those additives that are needed for the manufacture of the polymer and for its subsequent conversion to sound durable mouldings. 5.2 Vinyl acetate content. When determined by the method de
17、scribed in appendix A the vinyl acetate content shall be in the range 10 34 to 20 % by mass. 5.3 Rework material. The addition of up to 5 % by mass of the manufacturers own clean rework material resulting from the manufacture of components to this standard is permissible. No other rework material sh
18、all be used. 5.4 Environmental stress cracking (ESC). The material grade used shall be resistant to ESC as defined by the method described in appendix B, when at least five test specimens shall survive the test for 50 h without cracking. 5.5 Melt flow rate (MFR). When determined by the method descri
19、bed in BS 2782 : Method 720A, the MFR of the material used for manufacture shall be in the range 1.5 to 4.6. 6. Polypropylene copolymer connectors (PP) 6.1 General. The connector shall be manufactured from a polypropylene copolymer with only those additives that are needed for the manufacture of the
20、 polymer and its subsequent conversion into sound, durable mouldings. 6.2 Rework material. The use of the manufacturers own clean rework material complying with the requirements of this standard is permissible. No other rework material shall be used. *Marking BS 5627 : 1984 on or in relation to a pr
21、oduct is a claim by the manufacturer that the product has been manufactured to the requirements of the standard. The accuracy of such a claim is therefore solely the manufacturers responsibility. Enquiries as to the availability of third party certification fo support such claims should be addressed
22、 to the Director, Quality Assurance Division, BSI, Maylands Avenue, Hemel Hempstead, Hem HP2 4SQ for certification marks administered by BSi or to the a other certification marks. 1- - - COPYRIGHT British Standards Institute on ERC Specs and StandardsLicensed by Information Handling Services_- BSI B
23、S*5b27 84 a Lb2Llbb3 0033374 3 a BS 5627 : 1984 6.3 Impact resistance. When tested in accordance with the method described in appendix C, the connector body shall be capable of absorbing an energy of 21 J without fracture or cracking through the complete wall thickness. 7. Acrylonitrile butadiene st
24、yrene connectors (ABS) 7.1 General. The connector shall be manufactured from an ABS copolymer or terpolymer with only those additives that are needed for the manufacture of the polymer and its subsequent conversion into sound durable mouldings. 7.2 Rework material. The use of the manufacturers own c
25、lean rework material complying with the requirements of this standard is permissible. No other rework material shall be used. 7.3 Vicat softening temperature. After being conditioned for 16 h in water at 90 OC the Vicat softening temperature when measured by method 120B of BS 2782 : Methods 120A to
26、120E : 1976, shall be not less than 85 C. 7.4 Impact resistance. After exposure for a period of 500 h at 90 1: 2 OC and a relative humidity of at least 80 %, the impact resistance (the average of the 10 values minus one standard deviation) when measured in accordance with appendix D shall exceed 30
27、kJ/m2. 7.5 Oven test of fittings (quality control test). When tested in accordance with BS 2782 : Method 1103A fittings shall not exhibit excessive blisters, delaminations, cracks or weld- line splitting. In the vicinity of normal injection points the depth of penetration of cracks, etc. shall not e
28、xceed 50 % of the wall thickness of that point. When fittings are moulded by end gating (e.g. ring or diaphragm) techniques, the depth of penetration of cracks, etc. shall be not greater than 25 % of the corresponding socket depth. .- 7a.l General. The connector shall be manufactured7 substantially
29、from unplasticized PVC, together with the materials necessary to enable manufacture and to ensure compliance with this standard, 7a.2 Rework material. The use of manufacturers own clean rework material from products complying with the requirements of this standard for physical properties is permissi
30、ble. No other rework material shall be allowed. 7a.3 Vicat softening temperature. When tested in accordance with the method described in method 120B of BS 2782 : Methods 120A to 120E : 1976, the Vicat softening temperature of test pieces taken from connectors shall be not less than 79 “C. tested in
31、accordance with BS 2782 : Method 1103A fittings shall not exhibit blisters, delaminations, cracks or weldline splitting. In the vicinity of normal injection points the depth of penetration of cracks, etc. shall not exceed 50 % of the wall thickness of that point. When fittings are moulded by end gat
32、ing (e.g. ring or diaphragm) techniques, the depth of penetration of cracks, etc. shall not be greater than 25 % of the corresponding socket depth. - Section three. Performance, 8. Seals for WC spigots and pwk- - L- -_ 8.1 The design of sealing systems (joints) used in conjunc- tion with connectors
33、is not specified in this standard, but the sealing systems shall comply with the performance requirements of this standard, All joints to WCs shall be of push fit type (dry joints). Jointing compounds shall not be used. 8.2 If the design incorporates snap caps, the snap caps shall remain in position
34、 during the tests on the connector, but no other requirement of this standard shall apply to them. 9. Functional test requirements 9.1 Water tightness. When tested in accordance with appendix E the WC connector shall withstand a pressure of 0.1 bar* for 5 min without any visible leakage. 9.2 Air tig
35、htness. When tested in accordance with appendix F the WC connector shall withstand without loss of pressure an air pressure of 0.005 bar for 5 min when assembled without deflection. 9.3 Water and air tightness under deflection. The WC connector shall withstand the same pressure tests as described in
36、 9.1 and 9.2 when it is axially deflected 5 in any direction. No loss of pressure shall occur at any position but the pressure can be restored at each move- ment of the assembly from the axiaps%2 By means of the pipettes (A.3.3) add to the flask 50 mL of the xylene (A.2.2) and 25 mL of the potassium
37、 hydroxide solution (A.2.4). Heat the flask sand bath (A.3.8) maintained at 200 OC. After hydrolysis is complete,remove the flask from the sand bath and allow to COOI to ambient temperature. Add a few drops of the phenolphthalein solution (A.2.6) and, from the burette (A.3.1),30 mL of the sulphuric
38、or hydrochloric acid solution (A.2.3). Stopper the flask and Appendix A acetate copolymers (reference method) A.l Principle. To determine the percentage of vinyl acetate in ethylene/vinyl acetate copolymers. A.2 Reagents A.2.1 General, During the analysis, use only reagents of recognized analytical
39、reagent grade and only distilled water or water of equivalent purity. A.2.2 Xylene. A.2.3 Sulphuric acid, approximately 5 g/L solution, or hydrochloric acid, approximately 3.7 g/L solution. A. 2.4 Potassium hydroxide, et hano I i c so I ut i on, approximately 5.6 g/L. A.2.5 Sodium hydroxide, standar
40、d volumetric solution (0.1 mol/L). Ai2.6 Phenolphthalein, indicator solution. Dissolve 0.7 g of phenophthalein in 100 mL of ethanol. A.3 Apparatus Determination Of acetate in ethylene/vinyi fitted with the condenser (A.3.7) for 3 h on the . shake vigorously. Titrate the excess acid, while stirring,
41、t with the standard volumetric sodium hydroxide solution (A.2.5). A.4.2 Blank test, Carry out a blank test at the same time as the determination following the same procedure and using the same reagents as usedfor the determination, but omitting the test portion. A.5 Expression of results A.5.1 The v
42、inyl acetate content is given, as a percentage by mass, by the formula 0.8609 (Vi - Vz) X f m A.3.1 Burette, of capacity 50 mL, for the acid solution (A.2.3). A.3.2 Burette, of capacity 50 mL, for the sodium hydroxide solution (A.2.5). A,3.3 Pipettes, of capacity 25 mL, for the xylene (A.2.2) and th
43、e potassium hydroxide solution (A.2.4). A.3.4 Cylinder, of capacity 50 mL, for xylene (A.2.2). A.3.5 Conical flask, of capacity 250 mL, with stopper. A.3.6 Dropping bottle, for the phenolphthalein indicator solution (A.2.6). A.3.7 Reflux condenser, of length at least 500 mm, complying with the requi
44、rements of BS 5922. A.3.8 Sand bath, capable of being maintained at temperature of about 200 OC. A-3.9 Analyticalbalance, accurate to the nearest 0.1 mg. A.4 Procdure where Vi is the volume of the standard volumetric sodium hydroxide solution (A.2.5) used in determination (in mL); V2 is the volume o
45、f the standard volumetric sodium hydroxide solution (A.2.51 used in the blank test (in mL); is the correction factor for the concentration of the standard volumetric sodium hydroxide solution (A.2.5); M is the mass of the test portion (A.4.1.1) (in 9). A.5.2 Carry out two determinations. If the resu
46、lts differ by more than 0.4 % in respect of the vinyl acetate content, repeat the determination. Report the result as the . arithmetic mean of two acceptable determinations. A.6 Test report. The test report shall include the following f particulars: A.4.1 Determination A.4.1.1 Into the flask (A.3.51
47、, weigh, to the nearest 0.1 mg the quantity of dry copolymer as indicated in table 2. (a) a reference to the method used; (b) full identification of the sample; (c) the results expressed in accordance with A.5.1. Table 2. Test portion of dry copolymer Appendix B Estimated content, Approximate mass C
48、VA, of vinyl acetate of test portion % (mlm) 9 CVA 10 1 10cvA 20 0.5 20 CVA 40 0.3 40 CVA o. 2 NOTE. When analysing an unknown sample, carry out a preliminary test under conditions valid fora copolymer containing 20 % to 40 % imh) of vinyl acetate. Environmental stress cracking test 8.1 Test specime
49、ns. Prepare 10 specimens from sheet smooth pressed from granules of milled mass material to the dimensions given in figure 8(a). Use a die or other device that produces specimens with clean cut, square unbevelled edges. Cut the specimens within 24 h of preparing the sheets. Then leave the specimens to condition for 70 f 10 h at 20 t 2 C. Notch the specimens in accordance with figure 8, using a suitable nicking jig and place in a specimen holder as shown. B.2 Apparatus. A suitable vessel with temperature controls, a forced circulation p
