Standard
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AS 1741-1991
[Current]Vitrified clay pipes and fittings with flexible joints — Sewer quality
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.
Published: 12/07/1991
Pages: 51
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
PREFACE
FOREWORD
1 SCOPE AND GENERAL
1.1 SCOPE
1.2 REFERENCED DOCUMENTS
1.3 DEFINITIONS
1.4 CLASSIFICATION AND DESIGNATION
1.4.1 Classification
1.4.1.1 Pipes and fittings
1.4.1.2 Flexible joints
1.4.2 Designation
1.5 RANGE OF NOMINAL SIZES
1.6 MATERIALS AND MANUFACTURE
1.6.1 Pipes and fittings
1.6.2 Sleeves
1.6.3 Joint seals
1.6.4 Epoxy adhesives
1.7 GLAZING
2 PIPES—DIMENSIONAL REQUIREMENTS
2.1 INTERNAL DIAMETER
2.2 LENGTH
2.3 STRAIGHTNESS
2.4 OVALITY
2.5 CONCENTRICITY
2.6 END SQUARENESS
2.7 FLEXIBLE JOINTS
3 PIPES—PERFORMANCE REQUIREMENTS
3.1 CRUSHING STRENGTH
3.2 FLEXURAL STRENGTH
3.2.1 Methods
3.2.2 Bending moment resistance
3.2.3 Beam loading strength
3.3 WATER PERMEABILITY
3.4 ACID RESISTANCE
3.5 STRUCTURAL SOUNDNESS
4 FITTINGS—DIMENSIONAL REQUIREMENTS
4.1 DIMENSIONS AND TOLERANCES
4.1.1 General
4.1.2 Production bends and trap fittings
4.1.3 Depth of water seal
4.1.4 Flexible joints
5 FITTINGS—PERFORMANCE REQUIREMENTS
5.1 CRUSHING STRENGTH
5.2 ACID RESISTANCE
5.3 STRUCTURAL SOUNDNESS
6 FLEXIBLE JOINTS—DIMENSIONAL, DESIGN AND PERFORMANCE REQUIREMENTS
6.1 GENERAL
6.2 DIMENSIONS
6.2.1 Pipes, fittings and sleeves
6.2.2 Joint seal
6.3 DESIGN
6.3.1 Design parameters
6.3.2 Determination of contact pressures
6.4 PERFORMANCE
6.4.1 Bursting strength
6.4.2 Mechanical tests
7 PIPES AND FITTINGS—PHYSICAL DEFECTS
7.1 PHYSICAL DEFECTS
7.1.1 Classifications and sizes
7.1.2 Typical locations
7.1.3 Acceptance criteria
8 MARKING
8.1 PIPES, FITTINGS AND SLEEVES
8.2 JOINT SEALS
8.3 GROUPING
APPENDIX A
A1 GENERAL
A2 PRODUCTION PIPES
A3 PRODUCTION FITTINGS
A4 PRODUCTION OF FLEXIBLE JOINTS
A5 TESTING AND CERTIFICATION
A6 DEVIATION FROM STANDARD
A7 ADDITIONAL INFORMATION
APPENDIX B
B1 SCOPE
B2 STATISTICAL SAMPLING
B3 PRODUCT CERTIFICATION—STANDARDSMARK
B4 SUPPLIER’S QUALITY SYSTEM
B5 OTHER MEANS OF ASSESSMENT
APPENDIX C
C1 SCOPE
C2 PRINCIPLE
C3 APPARATUS
C4 TEST PIECES
C5 PROCEDURE
C6 CALCULATION
C7 REPORT
APPENDIX D
D1 SCOPE
D2 PRINCIPLE
D3 APPARATUS
D3.1 Straightness
D3.2 End squareness
D4 PROCEDURE
D4.1 Straightness
D4.2 End squareness
D5 REPORT
APPENDIX E
E1 SCOPE
APPENDIX F
F1 SCOPE
F2 PRINCIPLE
F3 APPARATUS
F4 TEST SPECIMEN
F5 PROCEDURE
F6 REPORT
APPENDIX G
G1 SCOPE
G2 PRINCIPLE
G3 APPARATUS
G4 TEST SPECIMEN
G5 PROCEDURE
G6 CALCULATION
G7 REPORT
APPENDIX H
H1 SCOPE
H2 PRINCIPLE
H3 APPARATUS
H4 TEST SPECIMEN
H5 PROCEDURE
H6 REPORT
APPENDIX I
I1 SCOPE
I2 PRINCIPLE
I3 APPARATUS
I4 PROCEDURE
I5 CALCULATION
I7 REPORT
APPENDIX J
J1 SCOPE
J2 PRINCIPLE
J3 APPARATUS
J4 TEST PIECES
J5 PROCEDURE
J6 CALCULATION
J7 REPORT
APPENDIX K
K1 SCOPE
K2 PRINCIPLE
K3 APPARATUS
K4 TEST PIPE, FITTING AND SLEEVE
K5 PROCEDURE
K6 REPORT
APPENDIX L
L1 SCOPE
L2 PRINCIPLE
L3 APPARATUS
L4 PROCEDURE
L5 REPORT
APPENDIX M
M1 SCOPE
APPENDIX N
N1 SCOPE
N2 PRINCIPLE
N3 APPARATUS
N4 PROCEDURE
N4.1 Deflection test
N4.2 Straight draw test
N4.3 Shear resistance test
N5 REPORT
Cited references in this standard
BS 65
Specification for vitrified clay pipes, fittings, joints and ducts
[Current]
Plastics — Methods of test for the determination of the effects of immersion in liquid chemicals
Content history
[Superseded]
[Superseded]
[Superseded]
[Superseded]
AS 1741-1991 REC:2018
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