ISO 14857:2014 PDF

Name: ISO 14857:2014 — Thermal performance in the built environment — Determination of air permeance of building materials
SKU: ISO 14857:2014
Price: 25 EUR
Availability: InStock

Thermal performance in the built environment — Determination of air permeance of building materials

Название (английский):

ISO 14857:2014

Thermal performance in the built environment — Determination of air permeance of building materials

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 14
Дата публикации:: 10 февраля 2014 г.
Издание:: ISO IS 14857 edition 1 version 1
ICS:: 91.120.10

Тип поставки:

Full version210 €Read online 24h10 €Read online 72h15 €

Язык документа:

ruen

Срок поставки:3 раб. дн. (перевод)

Цена:210 €

Описание (английский):

ISO 14857:2014 specifies the equipment and procedures to determine the air permeance of building materials at various pressure differentials and then assigning an air permeance rate at a reference pressure differential rate (ΔP) of 75 Pa. This method is intended for testing materials independent of a substrate using a 1 m × 1 m specimen size. The results of this test method can be used to determine whether a material qualifies to function as an air barrier material.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 14857:2014 - "Thermal performance in the built environment - Determination of air permeance of building materials" specifies a laboratory test method to measure the air permeance of building materials independent of a substrate. The standard defines equipment, specimen preparation and conditioning, test procedures at various pressure differentials, and the assignment of an air permeance rate referenced to ΔP = 75 Pa. Results are used to assess whether a material qualifies as an air barrier material in building envelope applications.

Key Topics

Scope and purpose: Evaluates air leakage through standalone building material specimens (intended to inform air barrier performance).

Specimen requirements: Nominal specimen size 1,2 m × 1,2 m (test opening 1 m × 1 m); five specimens are required for testing.

Conditioning: Specimens conditioned (typical: 23 ± 2 °C and 50 ± 10 % RH or specified alternatives) prior to testing.

Apparatus essentials:

Test chamber with 1 m × 1 m opening and 400 mm depth, compression frames and observation panels.
Airtight piping, filters and flow-control devices.
Airflow measurement devices and static pressure transducers with defined accuracy tolerances.
Variable pressure differential equipment able to produce positive and negative pressures; over‑pressure protection at 1 000 Pa.

Installation procedures: Detailed methods for self-supporting and non-self-supporting materials (including use of rigid support meshes and air‑impermeable wrapping).

Calibration and accuracy: Calibration using a defined orifice plate (interior square-edge diameter 25,4 ± 0,1 mm) and procedures to quantify extraneous leakage and measurement errors.

Reporting and precision: Guidance on calculation of air permeance, normalization to standard temperature/pressure, and reporting requirements.

Applications

ISO 14857:2014 is intended for:

Manufacturers of membranes, coatings, vapor/air barrier materials who need documented air permeance values for product data sheets.

Independent test laboratories performing compliance or certification testing of building materials.

Architects, façade consultants and building envelope specialists specifying air barrier performance for energy efficiency, moisture control and indoor air quality.

Regulators and certification schemes that reference laboratory air-permeance values for building code compliance or product classification.

Practical benefits include standardized, comparable air permeance data to support material selection, quality control, and performance-based specification of air barrier systems.

Related Standards

ISO 7345 - Thermal insulation: physical quantities and definitions

ISO 9229 - Thermal insulation: vocabulary

ISO 12576-1 - Conformity control systems for factory-made insulating materials

Keywords: ISO 14857:2014, air permeance, air barrier material, building materials, test method, thermal performance, specimen conditioning, pressure differential (75 Pa).

ISO 14857:2014 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Related Standards

Технические детали

SIST EN ISO 7345:2018

Thermal performance of buildings and building components - Physical quantities and definitions (ISO 7345:2018)

SIST EN ISO 9229:2020

Thermal insulation - Vocabulary (ISO 9229:2020)

ISO 12576-1:2001

Thermal insulation — Insulating materials and products for buildings — Conformity control systems — Part 1: F…