Fluidsystem och delar: allmänt

Kommittébeteckning: SIS/TK 295 (Cisterner och processkärl)
Källa: CEN
Svarsdatum: den 7 nov 2025
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This document specifies the requirements for the materials, design, fabrication, erection, testing and inspection of site built, vertical, cylindrical, flat bottomed, above ground, welded, steel tanks for the storage of liquids at ambient temperatures and above. It is concerned with the structural design of the basic tank structure and does not provide requirements for considering process design, operational issues, safety and firefighting facilities, in-service inspection, maintenance, or repair. This document is intended for use in conjunction with EN 1993-4-2 and so adheres the general principles and performance requirements for the structural design and serviceability limit states of those tank components. Specific requirements are addressed in EN 14015. It is applicable to: – closed-top tanks, with and without internal floating roofs; – open-top tanks, with and without floating roofs; – tanks for which: a) the design pressure is not greater than 60 mbar; b) the design internal negative pressure is not lower than 6,0 mbar; c) the design metal temperature is between –40 °C and +300 °C; d) the maximum design liquid level is not higher than the top of the cylindrical shell; e) the maximum allowable stress does not exceed 260 N/mm2. The limits of application of this document terminate at the following locations: – face of the first flange in a bolted flange connection; – first threaded joint on the pipe or coupling outside of the tank shell, roof or bottom; – first circumferential joint in a pipe not having a flange connection. This document does not apply to tanks where the product is refrigerated to maintain it as a liquid at atmospheric pressure.

Kommittébeteckning: SIS/TK 287 (Utrustning för bensinstationer)
Källa: CEN
Svarsdatum: den 28 nov 2025
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This document gives requirements and the corresponding test/assessment methods applicable to leak detector based on the measurement of pressure change. Leak detectors are intended to be used with double skin, underground or above ground, pressurized or non-pressurized, tanks or pipe designed for water polluting liquids/fluids. The leak detectors are usually composed of: - measuring device; - evaluation device; - alarm device; - pressure generator; - pressure relief device; - liquid stop device; - condensate trap.

Kommittébeteckning: SIS/TK 287 (Utrustning för bensinstationer)
Källa: CEN
Svarsdatum: den 28 nov 2025
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This document gives requirements and the corresponding test/assessment methods applicable to leak detectors based on the drop of the liquid level in the leak detection liquid reservoir. Leak detectors are intended to be used with double skin, underground or above ground, non-pressurized tanks designed for water polluting liquids. The liquid leak detectors are usually composed of: - sensing device (liquid sensor); - evaluation device; - alarm device.

Kommittébeteckning: SIS/TK 287 (Utrustning för bensinstationer)
Källa: CEN
Svarsdatum: den 28 nov 2025
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This document gives requirements and the corresponding test/assessment methods applicable to sensor-based leak detection systems (leak detectors) for liquids and/or for gases. The leak detectors are intended to be used in interstitial spaces, leakage containments or monitoring wells. The leak detectors are usually composed of: - sensing device(s); - evaluation device; - alarm device.

Kommittébeteckning: SIS/TK 287 (Utrustning för bensinstationer)
Källa: CEN
Svarsdatum: den 28 nov 2025
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This document specifies requirements and the corresponding test/assessment methods applicable to leak detection linings and leak detection jackets. Leak detection linings and leak detection jackets are intended to be used, in conjunction with leak detection kits, to create an interstitial space or leakage containment in single skin underground or above ground, non-pressurized tanks designed for water polluting liquids. For leak detection kits, see EN 13160 2, EN 13160 3 and EN 13160 4.

Kommittébeteckning: SIS/TK 291 (Transportbehållare för farligt gods)
Källa: CEN
Svarsdatum: den 1 dec 2025
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This document provides additional terms and definitions to those written in the Agreement Concerning the International Carriage of Dangerous Goods by Road (ADR) or the Regulations concerning the International Carriage of Dangerous Goods by Rail (RID), appearing as Appendix C to the Convention concerning International Carriage by Rail (COTIF). This document forms part of series of documents prepared by CEN/TC 296 regarding the transport of dangerous goods. The series supports the proper application of the ADR and RID. This document is applicable to tanks used for the transport of dangerous goods. This document does not apply to carriage in bulk of dangerous goods. For convenience, Annex A (informative) repeats some horizontal definitions taken from ADR and RID 2025 chapter 1.2, and Annex B (informative) repeats some definitions from ADR and RID 2025 chapter 6.7, specific to portable tanks. NOTE The ADR and RID are updated on a regular basis, therefore Annexes A and B might become out of date. For outdated definitions, the RID/ADR take precedence. Annexes C, D and E (informative) provide alphabetical trilingual indexes of terms in English, French and German where the key is English, French and German respectively. Annex F (normative) is a schematic diagram of tank openings and closures according to the tank code.

Ämnesområden: Bränslesystem; Gasflaskor
Kommittébeteckning: SIS/TK 296 (Gasflaskor)
Källa: ISO
Svarsdatum: den 5 dec 2025
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This document specifies the requirements for the inspection, installation and requalification of high pressure cylinders for the on-board storage of natural gas as a fuel for automotive vehicles. This document is applicable to high pressure cylinders designed and manufactured in accordance with the requirements of ISO 11439. It provides criteria, in the absence of guidance from the cylinder or vehicle manufacturer, for the acceptance (including any allowed rework) or rejection (including any allowed rework or destruction) of a cylinder and its installation.

Kommittébeteckning: SIS/TK 637/AG 01 (Förtillverkade rörsystem)
Källa: CEN
Svarsdatum: den 12 dec 2025
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This document specifies the methods of examining the knowledge and skill set of the fitter required to carry out on-site joint casing connections on thermally insulated single and twin pipe systems for directly buried hot and cold water networks according to .The application of these specified methods specifications ensures that the examination is carried out according to a standardised examining procedure.This document covers the following processes: - preparatory works for joint casing assembly; - assembling and testing the elements for surveillance systems; For special surveillance systems it can be important to have additional training.preparing work for joint casing system installation; - assembling sealable joint casing system; - verifying joint tightness (leakage testing); - thermally insulating the joint casing ( PUR foaming or half-shells); - sealing fill & vent openings (weldable or sealable plugs); - assessing overall installation quality of the completed joint connection (non-destructive).

Kommittébeteckning: SIS/TK 637/AG 01 (Förtillverkade rörsystem)
Källa: CEN
Svarsdatum: den 12 dec 2025
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This document specifies the methods of examining the knowledge and skill set of the PE-welder required to carry out on-site joint casing connections on thermally insulated single and twin pipe systems for directly buried hot and cold water networks according to and .The application of these specified methods specifications ensures that the examination is carried out according to a standardised examining procedure. This document applies to the following processes: - preparatory works for joint casing assembly; - assembling and testing the elements for surveillance systems; For special surveillance systems it can be important to have additional training.preparatory works for joint casing system installation; - assembling weldable joint casing system;executing hot gas welding and hot gas extrusion weldingverifying joint tightness (leakage testing); - thermally insulating the joint casing (PUR foaming or half-shell); - sealing fill & vent openings (weldable plugs); - assessing overall installation quality of the completed joint connection (non-destructive).

Ämnesområden: Gasflaskor
Kommittébeteckning: SIS/TK 296 (Gasflaskor)
Källa: ISO
Svarsdatum: den 19 dec 2025
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This document specifies the minimum requirements for the material, design construction and workmanship, manufacturing processes, examination and testing at time of manufacture of an assembly of permanently mounted composite tube(s) in a frame with associated components.

Tubes covered by the requirements of this document are:

a) of composite construction, permanently mounted in a transport frame and suitable for specified service conditions, designated as:

Type 3 — a fully wrapped tube with a seamless metallic liner and composite reinforcement on both the cylindrical part and the dome ends; or

Type 4 — a fully wrapped tube with a non-load sharing liner and composite reinforcement on both the cylindrical part and the dome ends.

b) with water capacities from 450 l up to and including 10 000 l;

c) containing compressed gases but excluding:

liquefied gases,

dissolved gases, and

gases and gas mixtures which are classified for transport as toxic or oxidizing;

d) with working pressure up to 1 000 bar.

This document does not address tubes with working pressure times water capacity (p × V) more than 3 000 000 bar∙l.

Ämnesområden: Plaströr; Rördelar av plast
Kommittébeteckning: SIS/TK 156/AG 02 (Plaströrssystem)
Källa: CEN
Svarsdatum: den 21 dec 2025
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This document specifies a method to determine the resistance to slow crack growth (SCG) of thermoplastic materials, pipes, and fittings. The test is applicable to samples taken from compression moulded sheets, extruded rods, sheets or pipes and injection moulded fittings of suitable thickness.

This document provides a method that is suitable for an accelerated fracture-mechanics characterization at ambient temperatures of 23 °C.

This document specifies test parameters for polyethylene (PE), polypropylene (PP) and unplasticized polyamide (PA-U). Furthermore, this test can be applied to characterise the slow crack growth resistance of virgin, as well as non-virgin (reused, recycled) thermoplastic materials.[5]

This test method can be adapted for other thermoplastics materials by developing the procedure using different test parameters.

Kommittébeteckning: SIS/TK 198/AG 03 (Avloppsteknik)
Källa: CEN
Svarsdatum: den 7 jan 2026
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The scope of the new standard will cover the different types of repair and rehabilitation that can be undertaken on / or with clay pipes. This will include details on trenchless installation technologies where clay pipes can be used for repair or replacement. The standard will outline the technique used and relevant standards that products can be used from as well as performance and testing criteria for products after installation. The scope will also cover repair and rehabilitation of pipes laid using the open trench installation method. This will include replacement of socketed joints and replacement or repair of pipes, junctions and manholes. The scope will again cover the products that can be used, their performance criteria and testing methods after installation.