Procedure for Cleaning,Flushing,Gauging and Hydro Testing of Pipelines

Annexure：Pipeline pressurization East-west Gas Pipeline Project Construction Procedure for Cleaning, Gauging And Hydro testing of Pipelines Rev.: A1 China Petroleum Pipeline Bureau（CPP） Document No.: EWPL00-COS-PR-0014 Section: Joint no from __________________ To ______________________ OD (mm) Wall Thk ( mm) Min: Max: Min: ID (mm) Max: Material: API 5L Gr X70 Length (Kms) Volume (M) 3 Pressurization cycles Test station location Test pressure 50% / 75% / 100% As per specs. Min 1.25 x DP: .__________bar Max 90% SMYS _________bar Pressure pump Make: Vol/ Stroke (Ltrs) Chainage (Km) Elevation (mtr) Pressure (bar) Date & Time Dead weight tester reading (bar) Stroke counter reading Volume (Ltrs) Cum. Volume (Ltrs) Remarks Model: Max pressure (bar) Start point End point Highest Lowest Page 49 of 56

East-west Gas Pipeline Project Construction Procedure for Cleaning, Gauging And Hydro testing of Pipelines Rev.: A1 China Petroleum Pipeline Bureau（CPP） Document No.: EWPL00-COS-PR-0014 Note: 1. Readings to be recorded for every 5 bar increment.

2. Line pressure and ambient temperature to be recorded continuously on recorders.

Remarks

__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Acceptance of section pressurization: Yes/ No.

Signature Name Date

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Contractor REAL