Hydrauliske systemer og komponenter til Allmenn bruk

This document describes the general principles for the implementation and management of a system of cathodic protection against corrosive attacks on structures which are buried or in contact with soils, surface fresh waters or underground waters, with and without the interference of external electrical sources. It specifies the protection criteria to be achieved to demonstrate the cathodic protection effectiveness. For structures that cannot be electrically isolated from neighbouring influencing structures, it may be impossible to use the criteria defined in the present document. In this case, EN 14505 will be applied (see 9.4 "Electrical continuity/discontinuity"). To assist in forming a decision whether or not to apply cathodic protection the corrosion likelihood can be evaluated using Annex A. Annex A summarizes the requirements of EN 12501-1 [2] and EN 12501-2 [3]. Cathodic protection of structures immersed in seawater is covered by EN 12473 and a series of standards more specific for various applications. Cathodic protection for reinforced concrete structures is covered by EN ISO 12696. This document is applicable in conjunction with: - EN ISO 15589-1 for application for buried or immersed cathodically pipelines, - EN 50162 to manage d.c. stray currents, - EN ISO 18086 to manage corrosion due to a.c. interference from high voltage power sources and a.c. traction systems, - EN 13509 for cathodic protection measurement techniques - EN 50443 to manage protection for touch and step voltage.

To allow ductile iron pipe manufacturers and users of the product to apply TMPO linings and thereby comply with the relevant requirements of EN 545, EN 545, EN 969. This demonstrates innovation according to Annex I, by the use of non-traditional coating systems offering environmental and economic benefits. The TMPO linings meet the criteria expressed in EN 14901, except for those pertinent to fusion bonded epoxy chemistry. The linings are being used in other parts of the world eg Australia and New Zealand and have been incorporated in the recent AWWA C116/A21.16-15 publication. The current status for TMPO linings in EU amounts to a barrier to trade and does not support SME’s involved in the manufacture, lining and application of the material that offers human health benefits, as highlighted in the Annex I and II.

This Part of this European Standard specifies the requirements for fabrication and installation of piping systems, including supports, designed in accordance with EN 13480-3:2017.

This document specifies requirements for metallic industrial piping and their parts made of nickel and nickel alloys (see 3.1) in addition to the general requirements for metallic industrial piping under EN 13480-1:2017, EN 13480-2:2017, EN 13480-3:2017, EN 13480-4:2017 and EN 13480-5:2017. NOTE Cast materials are not included in this version. Details regarding cast materials will be subject to an amendment to or a revision of this document.

This document specifies the product characteristics and the corresponding test methods for static thermoplastic tanks made of: - blow moulded polyethylene, or - rotationally moulded polyethylene, or - rotationally moulded anionically polymerized polyamide 6, with or without factory assembled reinforcement. The products covered by this European Standard: - are intended to be used for internal or external installations, for above ground storage of fuels limited to kerosene, heating oil, diesel, fatty acid methyl ester (FAME) and bioliquids (containing up to 15 % FAME); - have a maximum filling capacity from 400 l up to and including 10 000 l, except for those made of anionically polymerized polyamide 6 where the maximum filling capacity will be limited to 3 000 l; - are subject to atmospheric pressure but not to any external loading (e.g. installation, wind and snow, earthquakes, flooding); - are not manufactured using recycled thermoplastic material; - are not manufactured using regrind thermoplastic material for rotationally moulded tanks; - are not manufactured using more than 50 % of regrind thermoplastic material for blow moulded tanks. This document does not include tanks for the transport and distribution of fuels or gasses, or tanks for the storage of gas. Flammable fuels with a flash point > 55 °C as determined by EN ISO 2719:2016 are eligible for storage in the tanks described in this standard without further provisions. Flammable fuels with a flash point ≤ 55 °C as determined by EN ISO 2719:2016 are also eligible for storage in the tanks described in this standard if the provisions concerning electrostatic behaviour according to CLC/TR 60079-32-1:2015 are fulfilled.

This document provides procedures and methods for measuring and calculating the energy efficiency and associated characteristics of non-residential unidirectional ventilation units when driven by electric motors. Unidirectional ventilation units include roof fans and box fans. This document includes unidirectional ventilation units with and without filters. Additional air treatment items are considered in this document but are excluded in the determination of the efficiency of the product. This document does not include: - residential unidirectional and bidirectional ventilation units, - non-residential bidirectional ventilation units. NOTE 1 Residential unidirectional ventilation units are under the remit of CEN/TC 156/WG 2. NOTE 2 Non-residential bidirectional ventilation units are under the remit of CEN/TC 156/WG 5.

Revise clause 15

This document specifies the requirements, sampling, test methods and conditions of delivery for seamless round copper and copper alloy tubes used for refrigeration and air-conditioning piping systems (i.e. piping, connections and repairs). It is applicable to tubes with an outside diameter from 3 mm up to and including 219 mm. Tubes made of the copper-grade Cu-DHP are supplied in straight lengths in the material conditions hard or half-hard, or in coils in the annealed material condition. Tubes made of the alloy CuFe2P are supplied in straight length in the material conditions hard or annealed.

This European Standard defines the requirements and test methods for factory applied epoxy coatings (fusion bonded powder or liquid two-pack) used for the corrosion protection of ductile iron fittings and accessories conforming to EN 545, EN 598, EN 969, EN 12842, EN 14525, for: - conveying water (e.g. potable water) at operating temperature up to 50 °C excluding frost; or - conveying waste water at operating temperature up to 45 °C excluding frost; or - conveying gas at operating temperature up to 50 °C; - suitable for external environments, i.e. soils, waters and atmospheres of all common corrosion loads, characterized in EN 545:2010, D.2.3.