Part 4. SOUR GAS PIPELINES  


Section 460.20401. Scope; conversion of existing pipeline to sour gas service.
Section 460.20402. Materials for pipe and components; requirements.
Section 460.20403. Steel pipe; design formula.
Section 460.20404. Purging of sour gas pipelines; plan; personnel.
Section 460.20405. Valves; qualification for sour gas service.
Section 460.20406. Compressor station; emergency shutdown.
Section 460.20407. Sectionalizing block valves.
Section 460.20408. Qualification of welding procedures.
Section 460.20409. Inspection and testing of welds.
Section 460.20410. Threaded joints.
Section 460.20411. Repair of steel pipe.
Section 460.20412. Strength test requirements.
Section 460.20413. Underground clearances.
Section 460.20414. Cover.
Section 460.20415. Pipeline location.
Section 460.20416. Internal corrosion control; generally.
Section 460.20417. Internal corrosion control; monitoring.
Section 460.20418. Remedial measures.
Section 460.20419. Sour gas pipeline operating and maintenance manual; contents.
Section 460.20420. Safety procedures for abnormal operating conditions.
Section 460.20421. Damage prevention program.
Section 460.20422. Emergency procedures.
Section 460.20423. Sour gas education programs.
Section 460.20424. Telephonic notice to the commission of sour gas leak.
Section 460.20425. Sour gas pipeline patrolling.
Section 460.20426. Leakage surveys.
Section 460.20427. Line markers for sour gas pipelines.
Section 460.20428. Prohibition on temporary repairs.
Section 460.20429. Permanent field repair of leaks.
Section 460.20430. Inspection of pressure limiting and pressure regulating stations.
Section 460.20431. Valve maintenance; sour gas pipelines.