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prEN ISO 21809-3 Viešoji apklausa

Komentavimo iki data 2025-10-19

Naftos ir dujų pramonė, įskaitant mažesnio anglies dioksido pėdsako energijos gamybą. Požeminių ar povandeninių vamzdynų, naudojamų transportavimo vamzdynais sistemose, išorinės dangos. 3 dalis. Darbų vietoje suvirintų jungčių dangos (ISO/DIS 21809-3:2025)

ISO 21809-3:2016 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. ISO 21809-3:2016 defines and codifies in Table 1 the different types of field joint coatings for pipelines. ISO 21809-3:2016 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.

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prEN ISO 27281 Viešoji apklausa

Komentavimo iki data 2025-10-12

Saugos reikalavimai. Transporto priemonių plovimo sistemos (ISO/DIS 27281:2025)

This document contains technical safety requirements for the design, equipment and testing of brushless vehicle washing systems and vehicle washing systems with brushes for, indoor and outdoor operation, i.e. roll-over vehicle washing systems, vehicle washing tunnels, manually movable vehicle washing facilities. NOTE 1 Annex D covers the determination and control of Legionella and Pseudomonas aeruginosa concentration in stationary vehicle wash systems. Additionally, it can be applied to all vehicle washing systems that can form aerosols due to their cleaning systems. This document does not apply to hand-guided high pressure cleaners which are covered by EN 60335 2-79:2012, to water recycling systems, buildings and doors for entering the traffic zone, for powered ride-on machines and powered walk-behind machines with a traction drive. This document does not apply to bicycle cleaning systems. NOTE 2 Signals (example doors, lighting systems) can be provided by the vehicle washing system. This document contains requirements for the protection of persons and objects from accidents and damages during use and operation of vehicle washing systems. Persons to be protected are: - operators, - maintenance and monitoring personnel, - persons in the vicinity of vehicle washing systems, - persons sitting in the vehicle during cleaning. Objects to be protected are: - vehicles. Significant hazards associated with vehicle washing systems are listed in Clause 4. These hazards have been established by a risk assessment according to EN ISO 12100 and require measures to eliminate the hazard or to reduce the risk. These measures are specified in Clause 5 of this document. The safety requirements assume that vehicle washing systems are regularly maintained by trained and competent persons according to the manufacturer's information and that the operators, with the exception of users of self-service washing systems, have been instructed in the handling of vehicle washing systems.

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prEN 593 Viešoji apklausa

Komentavimo iki data 2025-09-07

Pramoninės sklendės. Metalinės droselinės sklendės

This document specifies minimum requirements applicable to design, final assessment, designation, marking and documentation for butterfly valves having metallic bodies for use with all type of pipe end connections (e.g. wafer, lug, flange, butt welding) and used for isolating, regulating or control applications. The PN and Class ranges are: — PN 2,5; PN 6; PN 10; PN 16; PN 25; PN 40; PN 63; PN 100; PN 160; — Class 150; Class 300; Class 600; Class 900. The size range is: — DN 20; DN 25; DN 32; DN 40; DN 50; DN 65; DN 80; DN 100; DN 125; DN 150; DN 200; DN 250; DN 300; DN 350; DN 400; DN 450; DN 500; DN 600; DN 700; DN 750; DN 800; DN 900; DN 1 000; DN 1 050; DN 1 100; DN 1 200; DN 1 400; DN 1 500; DN 1 600; DN 1 800; DN 2 000; DN 2 200; DN 2 400; DN 2 600; DN 2 800; DN 3 000; DN 3 200; DN 3 400; DN 3 600; DN 3 800; DN 4 000. DN 750 and DN 1 050 are used only for Class 150 and Class 300. Intermediate DNs are allowed upon agreement at the time of order. Potential fields of application and their application standards that apply together with this document are listed below: — applications with a maximum allowable pressure PS greater than 0,5 bar in accordance with the European legislation for pressure equipment, the applicable provisions of EN 16668 apply; NOTE 1 Exclusions are given in the European legislation for pressure equipment. — chemical applications, the applicable provisions of EN 12569 apply; — gas distribution systems, the applicable provisions of EN 13774 apply; — water supply application, the provisions of EN 1074-1 and EN 1074-2 apply; — process control application, the provisions of EN 1349 and EN 60534-2-1 apply. NOTE 2 The minimum requirements specified in Clauses 4, 5, 6, 7.1 and 8 are considered as "sound engineering practice" and are to be taken into account to ensure safe use. NOTE 3 The range of DN, applicable to each PN, for wafer and wafer lug valve types is as given in the appropriate part of EN 1092 for Type 11 flanges for the applicable material. The range of DN, applicable to each PN, for flanged valve types is as given in the appropriate part of EN 1092 for Type 21 flanges for the applicable material. The correspondence between DN and NPS is given for information in Annex D.

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prEN ISO 13680 Viešoji apklausa

Komentavimo iki data 2025-08-31

Naftos ir dujų pramonė, įskaitant mažesnio anglies dioksido pėdsako energijos gamybą. Besiūliai korozijai atsparių lydinių gaminiai, skirti naudoti kaip apsauginės kolonos, vamzdžiai, movų ruošiniai ir pagalbinių reikmenų medžiaga. Techninės tiekimo sąlygos (ISO 13680:2024)

This document specifies the technical delivery conditions for corrosion-resistant alloy seamless tubular products for casing, tubing, coupling stock and accessory material (including coupling stock and accessory material from bar) for two product specification levels:  PSL-1, which is the basis of this document;  PSL-2, which provides additional requirements for a product that is intended to be both corrosion and cracking resistant for the environments and qualification method specified in Annex G and in the ISO 15156 series. At the option of the manufacturer, PSL-2 products can be provided in lieu of PSL-1. NOTE 1 The corrosion-resistant alloys included in this document are special alloys in accordance with ISO 4948-1 and ISO 4948-2. NOTE 2 For the purpose of this document, NACE MR0175 is equivalent to the ISO 15156 series. NOTE 3 Accessory products can be manufactured from coupling stock and tubular material, or from solid bar stock or from bored and heat heat-treated bar stock as covered in Annex F. This document contains no provisions relating to the connection of individual lengths of pipe. This document contains provisions relating to marking of tubing and casing after threading. This document is applicable to the following five groups of products: a) group 1, which is composed of stainless alloys with a martensitic or martensitic/ferritic structure; b) group 2, which is composed of stainless alloys with a ferritic-austenitic structure, such as duplex and super-duplex stainless alloy; c) group 3, which is composed of stainless alloys with an austenitic structure (iron base); d) group 4, which is composed of nickel-based alloys with an austenitic structure (nickel base); e) group 5, which is composed of bar only (Annex F) in age-hardened (AH) nickel-based alloys with austenitic structure. NOTE 4 Not all PSL-1 categories and grades can be made cracking resistant in accordance with the ISO 15156 series and are, therefore, not included in PSL-2.

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