AS 1741-1991

1 - AS 1741-1991 VITRIFIED CLAY PIPES AND FITTINGS WITH FLEXIBLE JOINTS - SEWER QUALITY
4 - PREFACE
5 - CONTENTS
7 - FOREWORD
8 - SECTION 1 SCOPE AND GENERAL
8 - 1.1 SCOPE
8 - 1.2 REFERENCED DOCUMENTS
8 - 1.3 DEFINITIONS
8 - 1.3.1 Flexible joint
8 - 1.3.2 Production pipe, fitting, sleeve, flexible joint or joint seal
8 - 1.3.3 Test flexible joint
8 - 1.3.4 Test piece
8 - 1.3.5 Test pipe, fitting, sleeve or joint seal
8 - 1.3.6 Test representative pipe
9 - 1.3.7 Test specimen
9 - 1.4 CLASSIFICATION AND DESIGNATION
9 - 1.4.1 Classification
9 - 1.4.2 Designation
9 - 1.5 RANGE OF NOMINAL SIZES
9 - 1.6 MATERIALS AND MANUFACTURE
9 - 1.6.1 Pipes and fittings
9 - 1.6.2 Sleeves
9 - 1.6.3 Joint seals
10 - 1.6.4 Epoxy adhesives
10 - 1.7 GLAZING
11 - SECTION 2 PIPES- DIMENSIONAL REQUIREMENTS
11 - 2.1 INTERNAL DIAMETER
11 - 2.2 LENGTH
11 - 2.3 STRAIGHTNESS
11 - 2.4 OVALITY
12 - 2.5 CONCENTRICITY
12 - 2.6 END SQUARENESS
12 - 2.7 FLEXIBLE JOINTS
13 - SECTION 3 PIPES- PERFORMANCE REQUIREMENTS
13 - 3.1 CRUSHING STRENGTH
13 - 3.2 FLEXURAL STRENGTH
13 - 3.2.1 Methods
13 - 3.2.2 Bending moment resistance
14 - 3.2.3 Beam loading strength
14 - 3.3 WATER PERMEABILITY
14 - 3.4 ACID RESISTANCE
14 - 3.5 STRUCTURAL SOUNDNESS
15 - SECTION 4 FITTINGS- DIMENSIONAL REQUIREMENTS
15 - 4.1 DIMENSIONS AND TOLERANCES
15 - 4.1.1 General
15 - 4.1.2 Production bends and trap fittings
15 - 4.1.3 Depth of water seal
15 - 4.1.4 Flexible joints
16 - SECTION 5 FITTINGS- PERFORMANCE REQUIREMENTS
16 - 5.1 CRUSHING STRENGTH
16 - 5.2 ACID RESISTANCE
16 - 5.3 STRUCTURAL SOUNDNESS
17 - SECTION 6 FLEXIBLE JOINTS-DIMENSIONAL, DESIGN AND PERFORMANCE REQUIREMENTS
17 - 6.1 GENERAL
17 - 6.2 DIMENSIONS
17 - 6.2.1 Pipes, fittings and sleeves
17 - 6.2.2 Joint seal
17 - 6.3 DESIGN
17 - 6.3.1 Design parameters
17 - 6.3.2 Determination of contact pressures
17 - 6.4 PERFORMANCE
17 - 6.4.1 Bursting strength
18 - 6.4.2 Mechanical tests
19 - SECTION 7 PIPES AND FITTINGS- PHYSICAL DEFECTS
19 - 7.1 PHYSICAL DEFECTS
19 - 7.1.1 Classifications and sizes
19 - 7.1.2 Typical locations
20 - 7.1.3 Acceptance criteria
21 - SECTION 8 MARKING
21 - 8.1 PIPES, FITTINGS AND SLEEVES
21 - 8.2 JOINT SEALS
21 - 8.3 GROUPING
22 - APPENDIX A - PURCHASING GUIDELINES
22 - A1 GENERAL
22 - A2 PRODUCTION PIPES
22 - A3 PRODUCTION FITTINGS
22 - A4 PRODUCTION OF FLEXIBLE JOINTS
22 - A5 TESTING AND CERTIFICATION
22 - A6 DEVIATION FROM STANDARD
22 - A7 ADDITIONAL INFORMATION
23 - APPENDIX B - METHODS FOR DEMONSTRATING COMPLIANCE WITH THIS STANDARD
23 - B1 SCOPE
23 - B2 STATISTICAL SAMPLING
23 - B3 PRODUCT CERTIFICATION- STANDARDSMARK
23 - B4 SUPPLIER’S QUALITY SYSTEM
23 - B5 OTHER MEANS OF ASSESSMENT
24 - APPENDIX C - EPOXY ADHESIVES TEST- FITTINGS
24 - C1 SCOPE
24 - C2 PRINCIPLE
24 - C3 APPARATUS
24 - C4 TEST PIECES
25 - C5 PROCEDURE
25 - C6 CALCULATION
25 - C7 REPORT
26 - APPENDIX D - STRAIGHTNESS AND END SQUARENESS TESTS-PIPES
26 - D1 SCOPE
26 - D2 PRINCIPLE
26 - D3 APPARATUS
26 - D3.1 Straightness
26 - D3.2 End squareness
28 - D4 PROCEDURE
28 - D4.1 Straightness
28 - D4.2 End squareness
28 - D5 REPORT
29 - APPENDIX E - SOCKET TYPE FLEXIBLE JOINTS- DIMENSIONAL REQUIREMENTS
29 - E1 SCOPE
31 - APPENDIX F - CRUSHING STRENGTH TEST- PIPES AND FITTINGS
31 - F1 SCOPE
31 - F2 PRINCIPLE
31 - F3 APPARATUS
31 - F4 TEST SPECIMEN
31 - F5 PROCEDURE
32 - F6 REPORT
33 - APPENDIX G - BENDING MOMENT RESISTANCE TEST- PIPES WITH AND WITHOUT INTEGRAL SOCKETS
33 - G1 SCOPE
33 - G2 PRINCIPLE
33 - G3 APPARATUS
34 - G4 TEST SPECIMEN
34 - G5 PROCEDURE
34 - G6 CALCULATION
34 - G7 REPORT
35 - APPENDIX H - BEAM LOADING STRENGTH TEST- PIPES WITH INTEGRAL SOCKETS
35 - H1 SCOPE
35 - H2 PRINCIPLE
35 - H3 APPARATUS
36 - H4 TEST SPECIMEN
36 - H5 PROCEDURE
36 - H6 REPORT
37 - APPENDIX I - WATER PERMEABILITY TEST-PIPES
37 - I1 SCOPE
37 - I2 PRINCIPLE
37 - I3 APPARATUS
37 - I4 PROCEDURE
38 - I5 CALCULATION
38 - I7 REPORT
40 - APPENDIX J - ACID RESISTANCE TEST-PIPES AND FITTINGS
40 - J1 SCOPE
40 - J2 PRINCIPLE
40 - J3 APPARATUS
40 - J4 TEST PIECES
40 - J5 PROCEDURE
40 - J6 CALCULATION
41 - J7 REPORT
42 - APPENDIX K - BURSTING STRENGTH TEST FLEXIBLE JOINTS
42 - K1 SCOPE
42 - K2 PRINCIPLE
42 - K3 APPARATUS
42 - K4 TEST PIPE, FITTING AND SLEEVE
42 - K5 PROCEDURE
42 - K6 REPORT
44 - APPENDIX L - HYDROSTATIC TEST- PIPES AND FITTINGS
44 - L1 SCOPE
44 - L2 PRINCIPLE
44 - L3 APPARATUS
44 - L4 PROCEDURE
44 - L5 REPORT
45 - APPENDIX M - FITTINGS-DIMENSIONS AND TOLERANCES
45 - M1 SCOPE
56 - APPENDIX N - MECHANICAL TESTS-FLEXIBLE JOINTS
56 - N1 SCOPE
56 - N2 PRINCIPLE
56 - N3 APPARATUS
56 - N4 PROCEDURE
56 - N4.1 Deflection test
56 - N4.2 Straight draw test
56 - N4.3 Shear resistance test
58 - N5 REPORT

Specifies range of nominal sizes (DN 100 to DN 1000), crushing strength classes (3 and 4), dimensional and performance requirements for vitrified clay pipes and fittings and flexible joints (socket and sleeve types), for operation under gravity, intended for the conveyance of sewage and industrial waste. Appendices set out test procedures, dimensions and tolerances for pipes, common fittings and socket type flexible joints, purchasing guidelines and methods for determination of compliance with this Standard.

This Standard specifies requirements for vitrified clay pipes and fittings with flexible joints, for operation under gravity, intended for the conveyance of sewage and industrial waste.NOTES:1 Appendix A sets out guidelines on the information to be provided by the purchaser at the time of enquiry or order.2 Methods for determining compliance with this Standard are given in Appendix B.

First published in part as AS B57-1935.
Revised and redesignated AS A164-1968.
Revised and redesignated AS 1741-1975.
AS A165 first published 1968.
Revised and redesignated AS 1693.1-1975.
AS 1693.2 first published 1977.
AS 1741-1975, AS 1693.1-1975 and AS 1693.2-1977 revised and amalgamated as AS 1741-1991.