Reliability Analysis of Oil and Gas Pipelines Based on Step-Down-Stress Testing in Corrosive Environments

Table 3

The failure times.

	Values
Temperature/K	363	353	343	333
Sample size	5	5	10	15
Failure time/(a)				8.4106
				8.3787
				7.1193
			5.6972	6.8348
			5.60	6.3759
			5.4178	6.2724
	3.1264	3.4593	4.9602	5.9245
	3.1211	3.2690	4.7572	5.6145
	2.9157	3.1952	4.3637	5.5796
	2.8879	3.1636	4.0206	5.3567
	2.7102	3.0476	3.9615	5.0384
			3.7275	5.0359
			3.5575	5.0022
				4.9995
				4.9125