Category Archives: API

API RP 940

Steel Deterioration in Hydrogen: A Report on Corrosion Research

Published by: 1967-11-16 / 1967-11-16
This recommended practice summarizes the results of experimental tests and actual data acquired from operating plants to establish practical operating limits for carbon and low alloy steels in hydrogen service at elevated temperatures and pressures. The effects on the resistance of steels to hydrogen at elevated temperature and pressure that result from high stress, heat treating, chemical composition, and cladding are discussed. This recommended practice does not address the resistance of steels to hydrogen at lower temperatures [below about 400 °F (204 °C)], where atomic hydrogen enters the steel as a result of an electrochemical mechanism.

This recommended practice applies to equipment in refineries, petrochemical facilities, and chemical facilities in which hydrogen or hydrogen-containing fluids are processed at elevated temperature and pressure. The guidelines in this recommended practice can also be applied to hydrogenation plants such as those that manufacture ammonia, methanol, edible oils, and higher alcohols.

Ordering and availability

This publication is available only in printed edition.

API RP 572

Inspection of Pressure Vessels, Fourth Edition

Published by: 2016-12-01 / 2016-12-01 / 154 pages
This recommended practice (RP) supplements API 510 by providing pressure vessel inspectors with information that can improve skills and increase basic knowledge of inspection practices. This RP describes inspection practices for the various types of pressure vessels (e.g. drums, heat exchangers, columns, reactors, air coolers, spheres) used in petroleum refineries and chemical plants.

This RP addresses vessel components, inspection planning processes, inspection intervals, methods of inspection and assessment, methods of repair, records and reports. API 510 has requirements and expectations for inspection of pressure vessels.

A pressure vessel is a container designed to withstand internal or external pressure. The pressure vessels may have been constructed in accordance with ASME BPVC Section VIII, other recognized pressure vessel codes, or as approved by the jurisdiction. These codes typically limit design basis to an external or internal design pressure no less than 15 lbf/in.² (103 kPa). However, this RP also includes vessels that operate at lower pressures.

Ordering and availability

This publication is available only in printed edition.

API MPMS Chapter 10.2

Determination of Water in Crude Oil by Distillation, Fourth Edition

Published by: 2016-12-01 / 2016-12-01 / 11 pages
This test method covers the determination of water in crude oil by distillation. The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see 6.1 and A1.1.

Ordering and availability

This publication is available only in printed edition.

API RP 1167

Pipeline SCADA Alarm Management, Second Edition

Published by: 2016-06-01 / 2016-06-01 / 39 pages
This document is intended to provide pipeline operators with recommended industry practices in the development, implementation, and maintenance of an alarm management program. It provides guidance on elements that include, but are not limited to, alarm definition, philosophy, documentation, management of change, and auditing.

This document is not intended to be a step-by-step set of instructions on how to build an alarm management system. Each pipeline operator has a unique operating philosophy and will therefore have a unique alarm philosophy as well. This document is intended to outline key elements for review when building an alarm management system.

SCADA systems used within the pipeline industry vary in their alarm-related capabilities. There are also many different software systems available to aid in alarm management. It is the responsibility of the pipeline operator to determine the best method to achieve their alarm management goals.
This document uses industry best practices to help to illustrate aspects of alarm management. The scope is intended to be broad.

Ordering and availability

This publication is available only in printed edition.

API RP 551

Process Measurement, Second Edition

Published by: 2016-02-01 / 2016-02-01 / 233 pages
This document provides recommendations about the selection and design of process measurement systems. Further, it supplies information on their implementation and commissioning.

It covers the instrumentation life cycle including selection, design, installation, commissioning and operation. It is pertinent to those involved with instrument application including design firms, owner/operators, equipment package suppliers/integrators, construction and service personnel, as well as instrument manufacturers.

Instrument systems are often a compromise between the installed performance and maintainability. A system has to balance these requirements while ensuring that basic principles are upheld. This document assists in the understanding of these principals and making proper decisions.

This recommended practice is intended to be a source of good engineering practice. Its recommendations are practical and safe, which yield consistent and effective results.

Ordering and availability

This publication is available only in printed edition.

API Spec 7K

Drilling and Well Servicing Equipment, Sixth Edition

Published by: 2015-12-30 / 2015-12-30 / 130 pages
This specification provides general principles and specifies requirements for design, manufacture, and testing of new drilling and well-servicing equipment and of replacement primary load-carrying components manufactured subsequent to the publication of this specification.
This specification is applicable to the following equipment:

a) rotary tables;

b) rotary bushings;

c) high-pressure mud and cement hoses;

d) piston mud-pump components;

e) drawworks components;

f) manual tongs;

g) safety clamps not used as hoisting devices;

h) blowout preventer (BOP) handling systems;

i) pressure-relieving devices for high-pressure drilling fluid circulating systems;

j) snub-lines for manual and power tongs;

k) rotary slips, both manual and powered;

l) slip bowls; and

m) spiders, both manual and powered.

Ordering and availability

This publication is available only in printed edition.