Fluidsystem och delar: allmänt

Kommittébeteckning: SIS/TK 998 (Standardiseringsarbete utan svenskt deltagande)
Källa: CEN
Svarsdatum: den 12 okt 2026
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This document specifies the requirements and associated test methods applicable to ductile iron pipes, fittings, accessories and their joints for the construction of pipelines outside buildings: — to convey different types of water (e.g. raw water, treated water, re-used water) for all types of applications (e.g. water intended for human consumption, for fire protection, for snow making, for irrigation, for hydro-electricity etc.); — with or without pressure; — to be installed below or above ground. This document is applicable to pipes, fittings and accessories which are: — manufactured with socketed, flanged or spigot ends; — supplied externally and internally coated; — suitable for fluid temperatures between 0 °C and 50 °C, excluding frost; — not intended for use in areas subject to reaction to fire regulations. This does not preclude special arrangements for the products to be used at higher temperatures. This document covers pipes and fittings cast by any type of foundry process or manufactured by fabrication of cast components, as well as corresponding joints and accessories, in a size range extending from DN 40 to DN 2 000, inclusive. This document specifies requirements for materials, dimensions and tolerances, mechanical properties and standard coatings of ductile iron pipes and fittings. It also gives performance requirements for all components including joints. Joint design and gasket shapes are outside the scope of this document. In addition, reference is made to the minimum performance requirements of couplings, flange adaptors and saddles manufactured for use with ductile iron pipes and fittings. NOTE In this document, all pressures are relative pressures, expressed in bars (100 kPa = 1 bar).

Ämnesområden: Rör av järn och stål
Kommittébeteckning: SIS/TK 640 (Koldioxidavskiljning, användning och lagring)
Källa: CEN
Svarsdatum: den 14 okt 2026
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This document specifies requirements for the composition of CO2 streams relevant to the integrity of carbon steel pipeline systems, including limits on non-condensable components. It establishes the framework conditions for the supply, transportation and distribution of CO2 streams. Considerations related to the health effects of the CO2 stream (e.g. toxicity), environmental impact, or other properties of impurities are outside the scope of this document.

Kommittébeteckning: SIS/TK 998 (Standardiseringsarbete utan svenskt deltagande)
Källa: CEN
Svarsdatum: den 16 okt 2026
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1.1 This document specifies the constructional requirements for fans constructed to Group II G (of explosion groups IIA, IIB and hydrogen) categories 1, 2 and 3, and Group II D categories 2 and 3, intended for use in explosive atmospheres. NOTE 1 Operation conditions for the different categories of fans used in this document are defined in Clause 4. 1.3 This document specifies requirements for design, construction, testing and marking of complete fan units intended for use in potentially explosive atmospheres in air containing gas, vapour, mist and/or dusts. Such atmospheres can exist inside (the conveyed atmosphere (flammable or not)), outside, or inside and outside of the fan. This document covers mechanical equipment, in particular fans. The “type of protection” as specified in EN ISO 80079 37:2016 is constructional safety. 1.4 This document is applicable to fans working in ambient atmospheres and with normal atmospheric conditions at the inlet, having — absolute pressures ranging from 0,8 bar to 1,1 bar, — and temperatures ranging from −20 °C to +60 °C, — and maximum volume fraction of 21 % oxygen content, — and an aerodynamic energy increase of less than 25 kJ/kg. NOTE 1 25 kJ/kg is equivalent to 30 kPa at inlet density of 1,2 kg/m3. This document can also be helpful for the design, construction, testing and marking of fans intended for use in atmospheres outside the validity range stated above or in cases where other material pairings need to be used. In this case, the ignition risk assessment, ignition protection provided, additional testing (if necessary), manufacturer's marking, technical documentation and instructions to the user, clearly demonstrate and indicate the equipment's suitability for the conditions the fan can encounter. NOTE 2 Temperatures below −20 °C can be considered. Material suitability can require specific evaluation for these temperatures. With lower temperature the explosion pressure increases, which leads to increased test pressures (see A.3) and can require specific testing. Although the standard atmospheric conditions in EN ISO 80079 36:2016 give a temperature range for the atmosphere of −20 °C to +60 °C the normal ambient temperature range for the equipment is −20 °C to +40 °C unless otherwise specified and marked. 1.5 This document does not apply to: — group I fans (fans for mining); — explosion group IIC (other than hydrogen); — category 1D fans; — cooling fans or impellers on rotating electrical machines; — cooling fans or impellers on internal combustion engines, vehicles or electric motors. NOTE 3 Measures for category 1D fans are given in EN 1127 1:2019. NOTE 4 Measures for explosion group IIC (other than hydrogen) are given in EN 1127 1:2019. NOTE 5 Measures for explosion group I are given in EN ISO/IEC 80079 38:2016 and EN 1127 2:2014.

Kommittébeteckning: SIS/TK 170/AG 01 (Filter)
Källa: CEN
Svarsdatum: den 16 okt 2026
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This document is applicable to efficient particulate air filters (EPA), high efficiency particulate air filters (HEPA) and ultra-low penetration air filters (ULPA) used in the field of ventilation and air conditioning and for technical processes, e.g. for applications in clean room technology or pharmaceutical industry. This document establishes a procedure for the determination of the efficiency on the basis of a particle counting method using a liquid (or alternatively a solid) test aerosol and allows a standardized classification of these filters in terms of their efficiency, both local and integral efficiency. This document is based on particle counting methods which actually cover most needs of different applications.

Kommittébeteckning: SIS/TK 637/AG 01 (Förtillverkade rörsystem)
Källa: CEN
Svarsdatum: den 25 okt 2026
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This document specifies requirements and test methods for joint casing systems for single and twin pipes between adjacent factory-made pipe, and/or fitting and/or valve assemblies for buried heating and cooling water networks with rigid pipe systems with metal service pipes in accordance with EN 13941-1 [4] and EN 13941-2 [5] as well as rigid pipe systems with plastic service pipes according to series EN 17415 and flexible pipe systems with metal service pipes according to EN 15632-4 .

NOTE There are no differences in requirements for single and twin pipe joint casing systems.

For bedding materials other than those defined in 5.2.3 additional precautions are defined inEN 13941-2 [5].

Kommittébeteckning: SIS/TK 624/AG 02 (Koppar)
Källa: CEN
Svarsdatum: den 26 okt 2026
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This document specifies the composition, property requirements and tolerances on dimensions and form for seamless round drawn copper and copper alloy tubes for heat exchangers, condensers, evaporators and desalination equipment. It is applicable to copper and copper alloy tubes supplied in the size range from 6 mm up to and including 76 mm outside diameter and from 0,5 mm up to and including 3 mm wall thickness. The sampling procedures and the methods of test for verification of conformity to the requirements of this document are also specified.

Kommittébeteckning: SIS/TK 624/AG 02 (Koppar)
Källa: CEN
Svarsdatum: den 26 okt 2026
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This document specifies the composition, property requirements and tolerances on dimensions and form for rolled, finned, seamless copper and copper alloy tubes for heat exchangers. It is applicable to copper and copper alloy tubes supplied in the size range from 6 mm up to and including 35 mm outside diameter; from 1 mm up to and including 3,5 mm wall thickness of the unfinned section; and with fin height up to and including 4,5 mm. The sampling procedures and the methods of testing for verification of conformity to the requirements of this document are also specified.

Kommittébeteckning: SIS/TK 170/AG 03 (Ventilation)
Källa: CEN
Svarsdatum: den 27 okt 2026
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ISO 13350:2015 deals with the determination of those technical characteristics needed to describe all aspects of the performance of jet fans as defined in ISO 13349. It does not cover those fans designed for ducted applications, nor those designed solely for air circulation, e.g. ceiling fans and table fans. The test procedures described in this International Standard relate to laboratory conditions. The measurement of performance under on-site conditions is not included.

Kommittébeteckning: SIS/TK 295 (Cisterner och processkärl)
Källa: CEN
Svarsdatum: den 12 nov 2026
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This document specifies general requirements for the materials, design, construction and installation of the metallic components of refrigerated liquefied gas tank systems. This document deals with the design and manufacture of site built, vertical, cylindrical, flat-bottomed tank systems for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and -196 °C.

Kommittébeteckning: SIS/TK 156/AG 02 (Plaströrssystem)
Källa: ISO
Svarsdatum: den 14 nov 2026
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This document specifies materials and the general aspects of polyethylene (PE) pressure piping systems (mains and service pipes) for buried or above ground applications, intended for the conveyance of:

water intended for human consumption,

raw water prior to treatment,

drains and sewers under pressure,

vacuum sewer systems,

water for irrigation,

water for other purposes, with the exception of industrial applications.

 

The intended use includes sea outfalls, laid in water and pipes suspended below bridges.

 

NOTE 1:

Attention is drawn to Clause 6 of this document for PE components for the conveyance of water intended for human consumption and raw water prior to treatment. Components manufactured for water for other purposes, drains and sewers, and vacuum sewer systems are possibly not suitable for water supply for human consumption.

PE pipe systems for industrial applications and irrigation with limited pressure exposure are not covered by this document.

 

NOTE 2:

Industrial application is covered by ISO 15494, irrigation with limited pressure exposure is covered by ISO 8779 (Ed3).

 

This document also specifies the test parameters for the test methods referred to in this document.

 

In conjunction with ISO/DIS 4427-2, ISO/DIS 4427-3 and ISO/DIS 4427-5, this document is applicable to PE pipes and fittings, their joints and to joints with components made of PE and other materials, intended to be used under the following conditions:

a) a maximum allowable operating pressure (3.3.2) (PFA) up to and including 25 bar;

b) an operating temperature of 20 °C as the reference design temperature (3.3.3).

 

For applications operating at constant temperatures greater than 20 °C and up to and including 50 °C, see Annex A.

 

The ISO 4427 series covers a range of maximum allowable operating pressures and gives requirements concerning colours.

It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and any relevant national guidance or regulations and installation practices or codes.

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I detta dokument anges krav för hundekipage som utför läcksökning vid vatten- och gasledningar, som innefattar ledningar för dricksvatten, fjärrvärme- och fjärrkyla, samt naturgas. Hundekipaget består av hundföraren och den namngivna hund som utgör hundförarens arbetsverktyg.

 

Kraven på hundekipaget i detta dokument innefattar

Uppdrag och identifiering,

Arbetsbeskrivning,

Kompetens,

Förmågor,

Förkunskap,

Namngivna hundens lämplighet, och

Uppförandekod.

Kommittébeteckning: SIS/TK 156/AG 02 (Plaströrssystem)
Källa: ISO
Svarsdatum: den 16 nov 2026
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This document specifies the fittings made from polyethylene (PE) for buried or above ground applications, intended for the conveyance of water for human consumption, raw water prior to treatment, drainage and sewerage under pressure, vacuum sewer systems, and water for other purposes.

NOTE 1 The intended uses include sea outfalls, laid in water and connection between pipes suspended below bridges.

This document also specifies the test parameters for the test methods referred to in this document.

In conjunction with the other parts of the ISO 4427 series, this document is applicable to PE fittings, to joints with components of PE or other materials, intended to be used under the following conditions:

a) a maximum allowable operating pressure (PFA) up to and including 25 bar[1];

b) an operating temperature of 20 °C as the reference temperature.

NOTE 2 For other operating temperatures, guidance is given in ISO 4427‑1:2019, Annex A.

This document covers a range of maximum allowable operating pressures and gives requirements concerning colours.

NOTE 3 It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and installation practices or codes.

This document is applicable to fittings of the following types:

1. fusion fittings;

a. electrofusion fittings;

b. spigot end fittings (for butt fusion using heated tools and electrofusion socket fusion);

c. socket fusion fittings (see Annex A);

2. mechanical fittings;

a. compression fittings;

b. flanged fittings;

3. fabricated fittings (see Annex B).

[1] 1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2.

Kommittébeteckning: SIS/TK 156/AG 02 (Plaströrssystem)
Källa: ISO
Svarsdatum: den 16 nov 2026
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This document specifies the requirements of fitness for purpose of assembled polyethylene (PE) piping systems intended for the conveyance of water intended for human consumption, raw water prior to treatment, drains and sewers under pressure, vacuum sewer systems, and water for other purposes, with the exception of industrial application.

 

It specifies the requirements for the following types of joint assemblies with pipes or spigot ends:

(A) electrofusion socket fitting;

(B) electrofusion socket fitting;

(C) butt fusion joint (“pipe to pipe” and “pipe to spigot end fittings”);

(D) mechanical joint;

(E) socket fusion joint.

 

It specifies the method of preparation of test piece joints and the tests to be carried out on these joints for assessing the fitness for purpose of the system under normal and extreme conditions.

 

It specifies the test parameters for the test methods referred to in this document.

 

This document is intended to be used only by the product manufacturer and test laboratories to assess the performance of components in accordance with ISO 4427-2 and ISO 4427-3 when joined together under normal and extreme conditions in accordance with this document. It is not intended for on-site testing of pipe systems.

 

In conjunction with ISO 4427-1, ISO 4427-2 and ISO 4427-3, this document is applicable to PE pipes, fittings and valves, their joints, and joints with components of PE and other materials intended to be used under the following conditions:

 

a) allowable operating pressure, PFA, up to 25 bar;

b) an operating temperature of 20 °C as a reference temperature for design purposes.

 

For applications operating at constant temperatures greater than 20 °C up to and including 50 °C, see ISO 4427-1, XXXX - Annex A.

 

The ISO 4427 series covers a range of allowable operating pressures and gives requirements concerning colours.

 

1 bar = 0,1 MPa. = 105 Pa; 1 MPa = 1 N/mm2

Kommittébeteckning: SIS/TK 198/AG 02 (Vattenförsörjning)
Källa: CEN
Svarsdatum: den 18 nov 2026
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This document is applicable to metallic stop valves for use with water intended for human consumption. This document specifies: — requirements for the design of stop valves; — mechanical, hydraulic and acoustic requirements; — test methods; — marking requirements. This document is applicable to metallic stop valves, dimensions DN 10 to DN 100, for potable water installation in buildings for PN10 or PN16 and a distribution temperature of 65 °C. This document is applicable to stop valves in combination with accessories in the same body. This document is not applicable to regulating or servicing valves, designed specially to isolate sanitary tapware or other sanitary appliances.

Kommittébeteckning: SIS/TK 198/AG 02 (Vattenförsörjning)
Källa: CEN
Svarsdatum: den 18 nov 2026
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This document specifies application, general construction, performance and material requirements for frost resistant taps for outdoor use (FRT), PN 10. This document is applicable to potable water installations with a static pressure of maximum 1,0 MPa (10 bar) and a distribution temperature of maximum 25 °C (PWC). NOTE See Annex A for a general overview of this document’s organization and test sequence.

Kommittébeteckning: SIS/TK 298 (Konstruktion, tillverkning och kontroll av tryckbärande anordningar)
Källa: CEN
Svarsdatum: den 19 nov 2026
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1.1 This document specifies the requirements for materials, design, manufacture, testing inspection, safety equipment configuration and documentation (including instructions for first operation), for commonly-used types of gas-loaded accumulators and pressure vessels used to provide additional gas capacity for fluid power applications (see 1.2). 1.2 This document applies to the following types of components, defined as the pressure-containing envelope of gas-loaded accumulators: - bladder type; - diaphragm type; - piston type; - transfer type; - pressure vessels used to provide additional gas capacity. They consist of one or several parts joined together by a variety of mechanical means and by welding. 1.3 This document applies to gas-loaded accumulators which operate with the following conditions: - subject to an internal gauge pressure greater than 0,5 bar; - working temperature not lower than –50 °C and not higher than +200 °C; - containing all liquids and gases as defined in the European Legislation on Pressure Equipment, see Note. NOTE When the accumulator contains Group 1 liquids or gases, consideration relating to risks other than those required by the European Legislation on Pressure Equipment are not covered by this document and will be assessed separately.