AS NZS 4130:2018 pdf free.Polyethylene (PE) pipes for pressure applications.
3 I)F1’IXITIONS
For the purpose of this Standard. the defiiihions given in AS NZS 3500.0. AS’NZS 41 3 1 and those below apply.
3.1 Brittle failure
The type of failure of the material in pipe form during pressure testing, where the pipe exhibits no plastic delornialion visible to the naked eye (normal or corrected vision).
3.2 Co—es t rlI(Ied bj acket ‘ PiP
A pipe comprising two layers. where the layers are bonded siimtlianeously in a die head as part ol the extrusion process.
3.3 I)i,ctile mo(Ie
The type of failure of the material in pipe form during pressure testing. where the pipe exhibits plastic deformation visible to the naked eye (normal or corrected vision).
3.4 Fuel gas
Any fuel that is supplied through pipes or in containers and is a gas at a temperature of 1 5°C and an absolute pressure of 10 1 .325 kPa.
3.5 11001) stress
The stress in a pipe or fitting under pressure acting tangentially to the perimeter ot a transverse section.
3.6 I1drostatic design stress (lIDS)
Hoop stress due to internal hydrostatic pres11re. which can be applied continuously at a specified temperawre. and which is obtained by the application of a design (actor to the mini mu iii required strength ( \i R S ).
3.7 1aximnm allo able operating Iresstire (1:OP)
The maximum pressure that can be sustained, with a design factor. by the type or class of’
1)ire for its estimated useful life under the anticipated operating conditions.
3. oiniiial working pressure
Maximum pressure that can he sustained by (lie class of pipe for its estimated useful life under the expected working conditions.
7 COMPOSITION
7.1 General Pipes shall be manufactured from fully pre-compounded pipe extrusion compounds that conform with AS/NZS 4131. Additives containing compounds based on lead (Pb), cadmium (Cd) or mercury (Hg) shall not be used.
7.2 Rework material Clean rework, which is generated from the manufacturer’s own production of pipe in accordance with this Standard, may be used if it is derived from the same grade of resin as used for the relevant production. When rework material is added to a production run, the manufacturer shall treat this run as a new batch. AS NZS 4130 pdf download.