1、BRITISH STANDARD Fibre-cement pipes for sewers and drains Part 1. Pipes, joints and fittings for gravity systems BS EN 588-1 : 1997 The European Standard EN 5 23.040.50 Descriptors: Sanitation, sewage, gravity flow, piping tubes, pipe joints, accessories, asbestos cement products, designation, class
2、ifications, geometric characteristics, mechanical properties, physical properties, tests, corrosion resistance, acceptability, marking English version Fibrecement pipes for sewem and drains - Part 1 : pipes, joints and fittings for gravity systems Thyam en fibres-ciment pour rseaux daSISainiSSement
3、et branchements - Partie 1: ?iryaux, joints et accessoires coulement libre Faserzementrohre fr AbWasserleitungen und Abwasserkanle - Teil 1: Rohre, Rohrverbindungen und Formstucke fr Freispiegelleitungen This European standard was approved by CEN on 19960CL-17. CEN members are bound to comply with t
4、he CENKENELEC Inkd Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. UpWe lists and bibliographical references concerning such national standards may be obtained on application to the Cenmi Secretariat or to any CEN
5、 member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Centsal Secretariat has the same status as the official versions. CEN me
6、mbers are the national standards bodies of Austria, Belgium, Denmark, Fuiland, France, Germanyj Greece, Iceland, Ireland, Ita type NT (Non-asbestos Technology) for products the formulation of which does not contain asbestos. For products of type AT and NT all the requirements of this standard shall
7、be fulfilled. O BSI 1997 - STD*BSI BS EN 588-L-ENGL I777 362667 Ob05638 i.175 I Page 4 EN 6-1: 1996 I 4.2 Classification The pipes shall be classified in accordance with their minimum crushing strength in three classes based on load per unit internal area: 60 kN/m2, 90 kN/m2, 120 kNh2. The load per
8、unit area is the breaking load in kiionewtons per metre length of pipe divided by the nominal diameter of the pipe in metres (1/1000 of the nominal dimeter dues). 4.3 Pipe ends Pipes shall either have plain ends or with one end plain and the other end with a fixed socket. Plain ends may be machined
9、or un-machined (see figure 1). .I( I, 4.4 General appearance and finish The pipes shall be straight, uniform and regular. The shape of the finished end shall be fixed by the manufacturer to suit the type of joint used. The end faces shall be free from breakout and machining burrs. The pasts of the p
10、ipe where the rubber jointing rings are located shall be free from irregulanties which could affect the watertighlness of the joint. NOTE. If neces-, the pipes can be impregnated and/or coated internally and/or externally to meet special working conditions as agreed between manufacturer and customer
11、. The coating and finish should comply with the relevant national standards (transposing the European Standard), if existing. os ia: Pipe with plain end a plain end dl 62 machined end length of machined end internai diameter external diameter of the machined end external diameter of the barrel thick
12、ness of the barrel nominal thickness of the machined end IC: Pipe with adhesive jointed socket Figure 1. Pipe ends O BSI 1997 4.5 Smoothness of bore The intend surface of the pipe shall be regular and smooth. Slight scratches, indentations or small protrusions that do not affect the intended use or
13、efficiency shall be acceptable. 4.6 Geometrical characteristics 4.6.1 Nominal diameter (DN) Nominal diameters shall be as given in table 1. Nominal diameters without brackets are preferred lable 1. Nominal diameters (DN) 100 125 150 200 250 300 (350) 400 (450) 500 600 (700) (900) 1000 800 (1100) 120
14、0 (1300) 1400 (1500) 1600 (1700) (1900) (2100) 2200 (2300) (2400) 2500 1800 2000 4.6.2 Internal diameter When measured in accordance with 4.10.2.1 the internal diameter dl(see figure i), expressed in millimetres, of the pipe shall be equal to the nominal diameter, limit deviations excluded 4.6.3 Thi
15、ckness of wall When measured in accordance with 4.10.2.3 the nominal thickness of the wall of the pipe shall be the thickness of the barrel e, expressed in milhetres, (see figure 1) of the pipe, excluding the machined end. This nominal thickness shall be stated by the manufacturer in his literature.
16、 If the extremity of the pipe is machined, the nominal thickness e1 of the machined end shall be at least 3,3 % of the nominal diameter but not less than 6 mm. 4.6.4 External diameter When measured in accordance with 4.10.2.2 the external diameter d2 (see figure 1) of the pipe at the finished end wh
17、ere the rubber ring is located, expressed in millimetres, shall be stated by the manufacturer in his literature. Page 6 EN 5881 : 1996 4.6.6 Length of pipes When measured in accordance with 4.10.2.4 the nominal length 1 (see figure 1) of the pipe shall be the length measured between the extremities
18、for pipes with plain ends and the total length 4 less the depth of the socket t for socketed pipes. The nominal length shall be stated by the manufacturer in its literature in accordance with table 2. Table 2. Nominal length of pipes DN 100 to 2 500 Nominal length m Other pipe lengths than those sta
19、ted in table 2 can be agreed on between purchaser and manufacturer by dividing the nominal length of table 2 by round numbers (l/2,1/3, 114 length pipes). In special cases, specified length can be agreed on between purchaser and manufacturer. At least 90 % of the pipes supplied shall be of the nomin
20、al length agreed upon (subject to limit deviation given in 4.6.7.4). The remainder can be shorter by no more than 1 m. However, the total length of the pipes supplied shall not be less than the length ordered. 4.6.6 Length of machined end The length of the machined end a (see figure 1) shall not exc
21、eed the length of the coupling (or socket in case of socketed pipes) +10 mm. NOTE. Longer machined end pipes can be supplied. In this case the manufacturer wiii indicate the minimum breaking load. 4.6.7 Limit deviations 4.6.7.1 Interru diameter The limit deviation on the internal diameter shall be a
22、s given in table 3. I Table 3. Limit deviation on internal diameter I DN 5 1200 Limit deviation 1200 (f 15mm NOTE. d beim the nominal diameter. emressed in millimetres. O BSI 1997 Page 6 EN 588-1 : 1996 DN 5 300 4.6.7.2 Thidcness The lower deviation on the thickness of the bane1 and machined ends sh
23、all be as given in table 4. Upper deviation mm em, = e- + 6 Table 4. Lower deviation on barrel thickness 300 1000 Thickness k, = emin + 0,02 X DN h, = hn + 20 up to 1omm Over 10 mm up to 20 mm Over 20 mm up to 30 mm Over 30 mm up to 60mm ver6Ommup to9Omm Over 90 mm Lower deviation -1,5mm -2,o mm -3,
24、O mm -4,O mm -2,5 IILM -3,5 mm The upper deviations on the pipe end thickness shall be such as the maximum thickness is as follows: Table 6. Upper deviation on the pipe end thickness where: emax is the maximum thickness at the end of the pipe (machined end or barrel) in millimetres; em, is the minim
25、um thickness at the end of the pipe (machined end or barrel) equal to the nominal thiclaiess stated by the manufacturer less the lower deviation of table 4, in millimetres. 4.6.7.3 Extemal diameter at finished end covered by The limit deviations on the external diameter d2 of the pipe ends where joi
26、nting rings are located (plain ends), shall be established by the manufacturer in accordance with the type of joint used and taking into account the limit deviations acceptable in respect of the design of the joint and of the performance defned in 6.2 (see figure 1). 4.6.7.4 Length 1 (figure 1) The
27、limit deviation on the measurement shall be: the coupling +5mm; -20 mm. NOTE. Larger limit deviations can be agreed between customer and manufacturer. 4.6.7.6 Straightness The maximum deviationfon straightness in accordance with the test method of 4.10.2.6 shall not exceed the following Values given
28、 in table 6. Table 6. Limit deviation on straightness I DN Maximum deviation f I loot0 150 200 to 1 O00 1 100 to 2 500 NOTE. 1, is the len of the Dipe in metres (see figure 1). I 4.6.8 Interchangeabilitg Interconnection between pipes of the same nominal diameter and class of different pipe end dimen
29、sions can be achieved by special couplings or special machining of the pipe ends. 4.7 Mechanical characteristics 4.7.1 Crushing strength When tested in accordance with 4.10.3.1 the minimum breaking loads for pipes of nominal diameter up to DN 1 O00 shall be as given in table 7. Fable 7. Minimum brea
30、king load in kilonewtons per metre :kN/m) 100 125 150 200 250 300 350 400 450 500 600 700 800 900 LOO0 DN Class 60 - - - 15l) 15 18 21 24 27 30 36 42 48 54 60 Class 90 - - - 18 22,5 27 31,5 36 40,5 45 54 63 72 81 90 Minimum breaking loads exceed the calculate( -equirement to satisfy other design cri
31、teria. Class 120 201) 211) 221) 24 30 36 42 48 54 60 72 84 96 108 120 minimum For DN 1 O00 the minimum breaking loads in kilonewtons per metre are given by multiplying the class in kilonewtons per square metre by lA000 the nominal diameter (diameter in metres). e.g. when DN = 1 500 and pipe class is
32、 90 kN/m2 the minimum breaking load shall be: 90 kN/m2 X 1,5 m = 135 kN/m O BSI 1997 STD*BSI BS EN 588-1-ENGL 1997 M Lb24bb7 Ob05b4L TAT = 4.7.2 Bending loads Breaking bending loads in accordance with 4.10.3.2 shall be as given in table 8. 1 Table 8. Minimum breaking bending loads Breaking bending l
33、oad min. I DN IN , 200 12 O00 NOTE. When site circumstances require pipes to have higher bending strengths than those given, pipes of series S with a minimum breaking load 25 % higher than given in the table, or short length pipes can be specified. 4.8 Physical characteristics 4.8.1 Long term vertic
34、al loading When tested in accordance with 4.10.4.1, no test specimens shall fail (see annex C). 4.8.2 Warm water test When tested in accordance with 4.10.4.2, the lower confidence hit L calculated for the test specimens shall be not less than 0,75. When tested in accordance with 4.10.4.3, the pipe s
35、hall exhibit no fissure, leakage or sweating. 4.8.4 Modulus of elasticitg K necessary (e.g. for structural analysis), the modulus of elasticity shall be determined as a type test in accordance with the test method given in annex D. 4.9 Resistance to domestic sewage media When tested in accordance wi
36、th 4.10.5, the lower confidence limit L calculated for the test specimens shall be not less than 0,75. 4.10 Test methods 4.10.1 General 4.10.1.1 Acceptance tests Acceptance tests shall be carried out at the manufacturers works on pipes as deiivered whenever possible, or on test specimens cut from th
37、e pipes. NOTE. The manufacturer can carry out the test as part of the routine quality control system at an earlier stage of maturity. Acceptance tests consist of the following: - visual inspection of appearance, finish and of marking; - geometrical characterjstics; - crushing strength; - bending loa
38、ds. - E - = E 4.8.3 Watertightness CB i - _. 7 * * Page 7 EN 5881 : 1996 4.10.1.2 Qpe tests The following type tests shall be carried out. on pipes as delivered - long term loading test; - warm water test; - watertightness test; - resistance to domestic sewerage media When type tests are carried out
39、 the product shall also be subjected to the acceptance tests to ensure it complies with the requirements of this standard 4.10.2 Geometrical characteristics 4.10.2.1 InM diameter The minimum and maximum internal diasneter shall be measured at both ends of the element with an accuracy of 0,5 mm. The
40、values obtained shall comply with the specifications of 4.6.2 and 4.6.7.1. 4.10.2.2 Extemal diameter These measurements shall be carried out only at the plain or machined end of the pipe. The values obtained shall comply with the specitidions of 4.6.4 and 4.6.7.3. For pipes of DN 5 400 two measureme
41、nts of the external dimeter shall be made and carried out at 90“ to each other with an accuracy of 0,l mm approximately where the rubber rings are located. For pipes of DN 1 500, determine the outer diameter by measuring the circumference with an accuracy of 0,5 mm taking into account the thickness
42、of measuring tape. For pipes of 400 DN 300. 4.10.3.1.2 Apparatus The apparatus shall consist of: 4.10.3.1.2.1 A press, with a loading error of 3 % maximum and a loading reproducibility error of 2 % maximum. 4.10.3.1.2.2 A lower press block, formed by a V-shaped support having an included angle of 17
43、0“ made of metal or hard wood, and a flat upper press block made of the same materiai. The length of these blocks shal be equal to the length of the test specimen (figure 3). The width of the upper press block shall not be more than the value given in table 9. Table 9. Width of upper press blocks _
44、DN up to 450 500 to 600 700 to 800 900 to 1 O00 110oto 1200 1 300 to 1 400 1 500 to 1 600 1 700 to 1 800 1 900 to 2 O00 2100to2200 2 300 to 2 400 2 500 Width b mm 50 60 85 105 130 150 175 195 220 240 265 290 Strips of rubber of suitable width and length shall be interposed between the press blocks a
45、nd the test specimen). The rubber strips shall be 25 mm f 5 mm thick and a shore hardness of 60 * 5 IRHD. O BSI 1997 STDmBSI BS EN 588-L-ENGL A777 Lb24bb7 Ob05b43 852 = Page 9 EN 5881 : 1996 A 4 I 5“ I II -, A- A F F load uniformly applied 200 and angles 70“ where the minimum radius is Y = 0,7 DN. 6
46、.6.7 Limit deviations The limit deviations on inted diameter, external diameter, length of machined ends, nominal length and wall thickness shall be the same as specified in 4.6.7.1 and 4.6.7.2. 6.7 Mechanical characteristics - crushing strength Where the fittings are to be installed without additio
47、nal reinforcement on site, the values of the breaking crushing strength per linear metre of fitting shall be equal to 90 % of that stated in table 7 of 4.7.1 in accordance with the nominal diameter and the class when tested as specified in 6.10.3. 6.8 Physical characteristics - pressure When tested
48、as specified in 6.10.4, the fitting shall exhibit no fissures, leakage or drops of water. 6.9 Bonding stability of adhesive When tested as specified in 6.10.5, the fitting shall exhibit no leakage or drops of water and the adhesive shall not exhibit changes which could affect its performance in use.
49、 6.10 Test methods 6.10.1 General 6.10.1.1 Acceptance tests The acceptance tests shall be carried out at the manufacturers works on fittings as delivered. NOTE. The manufacturer can carry out the test as part of the routine quality control system at an earlier stage of maturity. O BSI 1997 STD-BSI BS EN 588-L-ENGL 1977 m lb24bb7 ObU5b52 Ab5 m Page 18 EN 588-1 : 1996 These tests include the: - visual inspection of general appearance and finish, and marking; - geometrical characteristics as specified in 6.6. 6.10.1.2 Type tests These tests shall be carried out o
