ISO 6224-2011 pdf free download

ISO 6224-2011 pdf free download.Thermoplastics hoses, textile-reinforced, for general-purpose water applications — Specification
Tuyaux en matières thermoplastiques a armature textile d’usage general pour l’eau — Specifications.
Bending tests at sub-ambient temperatures –
Iso 30013:2011, Rubber and plastics hoses — Methods of exposure to laboratory light sources — Determination of changes in colour, appearance and other physical properties
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 8330 apply.
4 Classification
Hoses are designated as one of the following types, depending on their pressure rating:
Type 1: Low pressure — Designed for a maximum working pressure of 0,6 MPa (6 bar) at 23 °C and 0,36 MPa (3,6 bar) at 60 °C.
Type 2: Medium pressure — Designed for a maximum working pressure of 1,0 MPa (10 bar) at 23 C and 0.65 MPa (6,5 bar) at 60 DC.
Type 3: High pressure — Designed for a maximum working pressure of 2,5 MPa (25 bar) at 23 °C and 1,6 MPa (16 bar) at 60 °C.
5 Materials and construction
The hose shall consist of:
— a flexible thermoplastic lining:
— a reinforcement of natural or synthetic textile, applied by any suitable technique:
— a flexible thermoplastic cover.
The lining and the cover shall be of uniform thickness, concentric, fully gelled and free from visible cracks,
porosity, foreign inclusions and other defects. The cover may have a smooth or fluted finish.
6 Dimensions
6.1 Inside diameters and tolerances on inside diameter
When measured in accordance with ISO 4671, the inside diameter and its tolerances shall conform to the values specified in Table 1.
6.2 Concentricity
When determined in accordance with ISO 4671. the concentricity, based on a total indicator reading between the inside diameter and the outside surface of the cover, shall be no greater than 1,0 mm.
6.3 Tolerance on length
When measured in accordance with ISO 4671, the tolerance on cut lengths shall be as specified in ISO 1307.
6.4 Minimum wall thickness
When measured in accordance with ISO 4671, the minimum wall thickness of the hose shall conform to the values specified in Table 1. If the cover is fluted, the depth of the flutes shall not be greater than 50 % of the cover thickness.
7 Physical properties
7.1 Thermoplastic materials
When measured by the methods listed In Table 2, the physical properties of the materials used for the lining and cover shall conform to the values specified in Table 2.
Tests shall be carried out on test pieces taken either from the hose or from separately gelled sheets, 2 mm in thickness.ISO 6224-2011 pdf free download.