DOT Regulation

Part 192 - Transportation of Natural or Other Gas by Pipeline:
Minimum Federal Safety Standards
Transportation Safety Institute
Pipeline Safety Regulations
Research & Special Programs Administration 9/1/94
Subpart F - Joining of Materials Other than by Welding
92.285 Plastic pipe; qualifying persons to make joints
1. No person may make a plastic pipe joint unless that person has been qualified under the applicable joining procedure by:
1. Appropriate training or experience in the use of the procedure; and
2. Making a specimen joint from pipe sections joined according to the procedure that passes the inspection and test set forth in paragraph (b) of this section.
2. The specimen joint must be:
1. Visually examined during and after assembly or joining and found to have the same appearance as a joint or photographs of a joint that is acceptable under the procedure; and
2. In the case of a heat fusion, solvent cement, or adhesive joint;
1. Tested under any one of the test methods listed under 192.283(a) applicable to the type of joint and material being tested;
2. Examined by ultrasonic inspection and found not to contain flaws that would cause failure; or
3. Cut into at least 3 longitudinal straps, each of which is:
1. Visually examined and found not to contain voids or discontinuities on the cut surfaces of the joint area; and
2. Deformed by bending, torque, or impact, and if failure occurs, it must not initiate in the joint area.
3. A person must be requalified under an applicable procedure, if during any 12-month period that person:
1. Does not make any joints under that procedure; or
2. Has 3 joints or 3% of the joints made, whichever is greater, under that procedure that are found unacceptable by testing under 192.513.
4. Each operator shall establish a method to determine that each person making joints in plastic pipelines in his system is qualified in accordance with this section.
[Amdt. 192-34A, 45 FR 9935, Feb. 14, 1980, as amended by Amdt. 192-34B, 46 FR 39, Jan. 2, 1981]