ISO 21051 , سیستمهای پایپ لاین لوله چدنی

ISO 21051 : Construction and installation of ductile iron pipeline system

دانلود استاندارد ISO 21051 (استاندارد الزامات لوله کشی خطوط انتقال با متریال لوله های چدنی داکتیل آیرون)

فهرست استاندارد:

1 Scope
2 Normative references
3 Terms and definitions
4 Occupational safety and health requirements
5 Materials in contact with water intended for human consumption
6 Input control, transport, handling and storage of pipeline components and inspection
7 Coating and lining repairs
8 Cutting of pipes and ovality correction
9 Site preparation and pipe trenches
10 Pipeline protection
11 Laying of pipes
12 Push-in joints, jointing and anchoring
13 Functional features and installation of valves
14 Restrained joints and thrust blocks
15 Cleaning, hydraulic testing and commissioning of pipeline and pipeline components
16 Flushing and disinfection
17 Service connections
18 Supporting pipes
19 Railroad and highway crossings