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This document defines the requirements for design, mechanical integrity, and sizing for all types of electric, pneumatic and hydraulic actuators and related components, including mounting kits, used on valves that conform to API Specification 6D/ISO 14313. Actuators are designed to be assembled fully as a single unit or assembled from modules. This standard is not applicable to actuators installed on control valves, or valves used for regulation. This standard does not apply to actuators for valves in subsea service. Also excluded are requirements for handheld powered devices, instrument tubing and fittings.

This part of ISO 21809 specifies requirements for field joint coating of seamless or welded steel pipes for buried and submerged sections of pipeline transportation systems used in the petroleum, petrochemical and natural gas industries as defined in ISO 13623. This part of ISO 21809 specifies the qualification, application and testing of the corrosion protection coatings applied to steel surfaces left bare after the joining of pipes and fittings (components) by welding. This part of ISO 21809 defines and codifies in Table 1 the different types of field joint coatings for pipelines. This part of ISO 21809 does not address requirements for additional mechanical protection, for thermal insulation or for joint infills of concrete weight-coated pipes. NOTE Field joints of pipes and fittings coated in accordance with this part of ISO 21809 are considered suitable for further protection by means of cathodic protection.

This document provides general principles, requirements and recommendations for the assessment of the stability of thermoset materials that include short fibre filled or particle filled resins and exclude continuous fibre reinforced composites for service in equipment used in oil and gas exploration and production environments. This document also provides guidance for quality assurance. It supplements but does not replace, the material requirements given in the appropriate design codes, standards or regulations. This document addresses the resistance of thermosets to the deterioration in properties that can be caused by physical or chemical interaction with produced and injected oil and gas-field media, and with chemical treatment. Interaction with sunlight and ionizing radiation are excluded from the scope of this document. This document is not necessarily suitable for application to equipment used in refining or downstream processes and equipment. The equipment considered includes, but is not limited to, non-metallic pipelines, piping, liners, seals, gaskets and washers. Applications for short term exposure include pump-down plugs, bridge plug components, line wiper plugs, balls, setting tools and fracking tools. Applications for long term exposure include bearings and washers. This document excludes tubular products, tanks and similar items produced from continuous fibre reinforced materials. Blistering by rapid gas decompression is not included in the scope of this document. This document applies to the assessment of the stability of non-metallic materials in simulated hydrocarbon production conditions to aid the selection of materials for equipment designed and constructed using conventional design criteria. Designs utilizing other criteria are excluded from its scope.

This document covers the normal and emergency vapor venting requirements for aboveground liquid petroleum or petroleum products storage tanks and aboveground and underground refrigerated storage tanks designed for operation at pressures from full vacuum through 103,4 kPa (ga) (15 psig). Discussed in this document are: — causes of overpressure and vacuum; — determination of venting requirements; — means of venting; — selection and installation of venting devices; — testing and marking of relief devices. This document is intended for tanks containing petroleum and petroleum products, but it can also be applied to tanks containing other liquids; however, it is necessary to use sound engineering analysis and judgment whenever this standard is applied to other liquids. This document does not apply to external floating-roof tanks. It however does apply to tanks equipped with an internal floating cover/roof.

This document gives requirements and recommendations for the qualification and design, installation, testing and integrity management for the external application of composite repair systems to corroded or damaged pipework and pipelines, tanks and vessels used in the petroleum, petrochemical and natural gas industries.