ISO 6259-3-2015 pdf free download

ISO 6259-3-2015 pdf free download.Thermoplastics pipes — Determination of tensile properties — Part 3:
Polyolefin pipes
Tubes en matières the rmoplastiques — Determination des caractéristiques en traction — Partie 3: Tubes en polyoléfines.
This part of ISO 6259 specifies a method of determining the tensile properties of polyolefin (polyethylene.
cross-linked polyethylene, polypropylene, and polybutene) pipes, and the following properties:
— the stress at yield;
— the elongation at break.
This part of ISO 6259 also gives the corresponding basic specifications in Annexes A to 1 for information
purposes only.
2 Normative reference
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 527-1:2012, Plastics — Determination of tensile properties Part 1: General principles ISO 6259-1:2015, Thermo plastics pipes — Determination of tensile properties — Part 1: General test method
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 6259-1 apply.
4 Principle
See ISO 6259-1:2013, Clause 4, applicable to thermoplastics materials covered by this part of ISO 6259.
S Apparatus
See ISO 6259-1:20 15, Clause 5, applicable to thermoplastics materials covered by this part of ISO 6259.
6 Test pieces
6.1 Selection of the test pieces
6.1.1 General
The test pieces shall be obtained by die cutting or machining.
NOTE I When the thickness ofthe pipe is less than or equal to 12 mm, the test pieces are to be die cut preferably. When the thickness of the pipes Is greater than 12 mm the test pieces are to be machined preferably.
NOTE 2 Care ought to be taken when using die cutting to avoid damaging the test specimen or producing non parallel sides.
6.1.2 Dimensions of test pieces
Test pieces shall be either of T’pe 1, the shape and dimensions of which are given In Figure 1 and Tablet T’pe 2. the shape and dimensions of which are given in Figure 2 and Table 2. or 1’pe 3, the shape and dimensions of which are given in Figure 3 and Tabk.3. The choice of test piece is dependent on the wall thickness of the pipe from which it is taken (see 6.2).
NOTE 1 The Type 1 test piece Is identical to the Type lB specified in ISO 527-2 LII. The 1tpe 2 test piece is identical to the T’pe 2 specified in ISO 6259-2 IZI. The T’pe 3 test piece is identical to the 1pe B test piece in ISO 13953 Lii.
NOTE 2 In order to avoid slippage in the grips, it is recommended that the width of the ends of the test piece (B) be increased in proportion to the thickness (en) in accordance with Formula (1):ISO 6259-3-2015 pdf free download.