Risk-based inspection guidelines have been created by several technical societies, most notably the ASME and API. This study intends to show how one of these techniques, American Petroleum Institute, API 581 assesses risk and determines inspection intervals of furnaces tubes. The paper also explains the difficulties of applying API 581 and discusses the meaning of the results and the inspection program proposed in API 581.

1.
Ashok Kumar Ray
,
S. K. S.
,
Nath Tiwari
,
Y.
,
Swaminathan
,
J.
,
Das
,
G.
,
Chaudhuri
,
S.
, and
Singh
,
R.
,
2003
, “
Analysis of Failed Reformer Tubes
,”
Eng. Failure Anal.
,
10
, pp.
351
362
.
2.
American Petroleum Institute, 2000, Risk-Based Inspection, Base Resource Document, API 581, API, Washington.
3.
American Petroleum Institute, 1996, Calculation of Heater-Tube Thickness in Petroleum Refineries, API 530, S., API, Washington.
4.
Neely, E., 2003, Practical Metallurgy and Materials of Industry, Prentice Hall, Englewood Cliffs, NJ, p. 449.
5.
LeMay, L., 1983, Principles of Mechanical Metallurgy, Elsevier, New York.
6.
Reid, R. C., and Prausnitz, T. K. S., 1977, Properties of Gases and Liquids, 3rd ed., McGraw-Hill, New York, p. 688.
7.
Farmer
,
F. R.
,
1967
, “
Reactor Safety and Siting: A Proposed Risk Criterion
,”
Nuclear Safety
,
8
(
6
), pp.
539
548
.
8.
Victorian Work Cover Authority, 2001, “The Requirements for Demonstration Under the Occupational Health and Safety (Major Hazard Facilities) Regulation,” Guidance Note 16.
9.
Valbuena
,
R. R.
,
Kaley
,
L. C.
, and
Wechsler
,
M. L.
,
1998
, “
Inspection Methodology Designed to Optimize Budgets
,”
Materials Performance
,
37
(
2
), p.
89
89
.
You do not currently have access to this content.