ISO/TS 12512:2017
Glass reinforced thermosetting plastic (GRP) pipes — Determination of initial specific ring stiffness using segment test species cut from a pipe
ISO/TS 12512:2017 specifies a method for determining the initial specific ring stiffness of pipes having a nominal size of DN 2000 or larger, using segment test pieces cut from a glass-reinforced thermosetting plastics (GRP) pipe.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
4.1 Overview
4.2 Principle of test procedures to determine initial specific ring stiffness
4.2.1 Method A
4.2.2 Method B
5 Apparatus
5.2 Load application surface — General arrangement
5.3 Dimension-measuring instruments
5.4 Temperature-measuring instrument
6 Test pieces
6.1 Preparation
6.2 Number
6.3 Determination of dimensions
6.3.1 Width
6.3.2 Wall thickness
6.3.3 Mean diameter
7 Conditioning
8 Procedure
8.1 Test temperature
8.2 Positioning of the test piece
8.3 Determination of initial specific ring stiffness
8.3.1 Method A: Using constant load
8.3.2 Method B: Using constant deflection
9 Calculations
10 Test report
Annex A (informative) Principles forming basis for use of segmental test pieces
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Related Information
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AS/NZS 1254:2010
PVC-U pipes and fittings for stormwater and surface water applications
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AS/NZS 1254:2010 A1
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AS/NZS 1254:2010 A2
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AS/NZS 1254:2010 A3
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
4.1 Overview
4.2 Principle of test procedures to determine initial specific ring stiffness
4.2.1 Method A
4.2.2 Method B
5 Apparatus
5.2 Load application surface — General arrangement
5.3 Dimension-measuring instruments
5.4 Temperature-measuring instrument
6 Test pieces
6.1 Preparation
6.2 Number
6.3 Determination of dimensions
6.3.1 Width
6.3.2 Wall thickness
6.3.3 Mean diameter
7 Conditioning
8 Procedure
8.1 Test temperature
8.2 Positioning of the test piece
8.3 Determination of initial specific ring stiffness
8.3.1 Method A: Using constant load
8.3.2 Method B: Using constant deflection
9 Calculations
10 Test report
Annex A (informative) Principles forming basis for use of segmental test pieces