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91 Construction materials and building
New standards
ISO 6944-1:2024
Fire containment — Elements of building construction — Part 1: Ventilation ducts
Scope: This document specifies a method for determining the fire resistance of vertical and horizontal ventilation ducts under standardized fire conditions. The test examines the behaviour of ducts exposed to fire from the outside (duct A) and fire inside the duct (duct B). This document is intended to be used in conjunction with ISO 834-1.
This document is not applicable to:
a)       ducts whose fire resistance depends on the fire resistance performance of a ceiling;
b)       ducts containing fire dampers at points where they pass through fire separations;
c)        doors of inspection openings, unless included in the duct to be tested;
d)       two-sided or three-sided ducts;
e)       the fixing of suspension devices to floors or walls;
f)         kitchen extract ducts (see ISO 6944-2).
NOTE            Annex A provides general guidance and gives background information.
Base documents:
EVS-EN ISO 7817-1:2024
Building Information Modelling - Level of Information Need - Part 1 Concepts and principles (ISO 7817-1:2024)
Scope:

This document specifies concepts and principles to establish a methodology for specifying level of information need and information deliveries in a consistent way when using building information modelling (BIM).
This document specifies the characteristics of different levels used for defining the detail and extent of information required to be exchanged and delivered throughout the life cycle of built assets. It gives guidelines for principles required to specify information needs.
The concepts and principles in this document can be applied for a general information exchange and while in progress, for a generally agreed way of information exchange between parties in a collaborative work process, as well as for an appointment with specified information delivery.
This document is applicable to the whole life cycle of any built asset, including strategic planning, initial design, engineering, development, documentation and construction, day-to-day operation, maintenance, refurbishment, repair and end-of-life.

Base documents: ISO 7817-1:2024; EN ISO 7817-1:2024
Replaced standards
ISO 6944-1:2008/Amd 1:2015
ISO 6944-1:2008 - Amendment
Scope:
Base documents:
Replaced: ISO 6944-1:2024
ISO 6944-1:2008
Fire containment -- Elements of building construction -- Part 1: Ventilation ducts
Scope: ISO 6944-1:2008 specifies a method for determining the fire resistance of vertical and horizontal ventilation ducts under standardized fire conditions. The test examines the behaviour of ducts exposed to fire from the outside (duct A) and fire inside the duct (duct B). It is intended that ISO 6944-1:2008 be used in conjunction with ISO 834-1.
ISO 6944-1:2008 is not applicable to ducts whose fire resistance depends on the fire resistance performance of a ceiling, ducts containing fire dampers at points where they pass through fire separations, doors of inspection openings, unless included in the duct to be tested, two- or three-sided ducts, or the fixing of suspension devices to floors or walls.
General guidance and background information are provided.
Base documents:
Replaced: ISO 6944-1:2024
Drafts
prEVS 875-12
Property valuation - Part 12: Valuation for Compensation
Scope: Current standard is dealing with a process what is regulated by Law and where compulsory purchase or voluntary acquisition is processed in the public interests. The standard provides rules how valuers should do valuations in these proceedings.
Base documents:
prEVS 875-13
Property valuation - Part 13: Consideration of environmental quality and environmental, climate and ESG-related risks in property valuation
Scope: Assessment principles in the context of environmental threats and risks, nature conservation and land use restrictions, including those arising from planning. The standard also deals with the guidelines for responsible financing principles or ESG resulting from the European Union's Green Agreement and the resulting requirements for real estate valuation.
Base documents:
prEN 12541
Sanitary tapware - Pressure flushing valves and automatic closing urinal valves PN 10
Scope: This document applies to flushing valves for WCs and valves for urinals, with automatic hydraulic closure, intended for:
-  WC pans EN 997;
-  single flush urinals EN 13407;
-  siphon acting urinals EN 13407.
It does not apply to no-contact detection valves.
It is intended to specify:
-  marking and identification, physico-chemical, dimensional, leaktightness, pressure behaviour, hydraulic, mechanical endurance and acoustic characteristics of flushing valves for WCs and urinals with automatic closure;
-  test methods used to verify these characteristics;
-  and to determine requirements for the atmospheric interrupter which shall be an integral part of the WC flushing valve.
It applies in the following pressure and temperature conditions:
Table 1 — Conditions of use for tapware
Dynamic Pressure range recommended for a good working  Urinals
WC DN 15
WC DN 20  0,1 MPa ≤ P ≤ 0,5 MPa
(1 bar ≤ P ≤ 5 bar)
  WC DN 25  0,08 MPa ≤ P ≤ 0,25 MPa
(0,8 bar ≤ P ≤ 2,5 bar)
  WC DN 32  0,08 MPa ≤ P ≤ 0,25 MPa
(0,8 bar ≤ P ≤ 2,5 bar)
Maximum static pressure  1 MPa (10 bar)
Water temperature  ≤ 25 °C
NOTE 1  Although this document limits the pressure for WC DN 25 and WC DN 32 valves till 0,25 MPa (2,5 bar), some European countries have legislation and recommendations for higher pressures.
Health and quality requirements in accordance to European and national legislation for final materials in contact with water intended for human consumption are not covered by this document.
Base documents: prEN 12541