
【国外标准】 Standard Test Method for Determining Air Leakage Rate by Fan Pressurization
本网站 发布时间:
2024-02-28
开通会员免费在线看70000余条国内标准,赠送文本下载次数,单本最低仅合13.3元!还可享标准出版进度查询、定制跟踪推送、标准查新等超多特权!  
查看详情>>

适用范围:
5.1 Air leakage accounts for a significant portion of the thermal space conditioning load. In addition, it affects occupant comfort and indoor air quality.5.2 In most commercial or industrial buildings, outdoor air is often introduced by design; however, air leakage is a significant addition to the designed outdoor airflow. In most residential buildings, indoor-outdoor air exchange is attributable primarily to air leakage through cracks and construction joints and is induced by pressure differences due to temperature differences, wind, operation of auxiliary fans (for example, kitchen and bathroom exhausts), and the operation of combustion equipment in the building.5.3 The fan-pressurization method is simpler than tracer gas measurements and is intended to characterize the air tightness of the building envelope. It is used to compare the relative air tightness of several similar buildings to identify the leakage sources and rates of leakage from different components of the same building envelope, and to determine the air leakage reduction for individual retrofit measures applied incrementally to an existing building, and to determine ventilation rates when combined with weather and leak location information.1.1 This test method measures air-leakage rates through a building envelope under controlled pressurization and de-pressurization.1.2 This test method is applicable to small temperature differentials and low-wind pressure differential, therefore strong winds and large indoor-outdoor temperature differentials shall be avoided.1.3 This test method is intended to quantify the air tightness of a building envelope. This test method does not measure air change rate or air leakage rate under normal weather conditions and building operation.NOTE 1: See Test Method E741 to directly measure air-change rates using the tracer gas dilution method.1.4 This test method is intended to be used for measuring the air tightness of building envelopes of single-zone buildings. For the purpose of this test method, many multi-zone buildings can be treated as single-zone buildings by opening interior doors or by inducing equal pressures in adjacent zones.1.5 Only metric SI units of measurement are used in this standard. If a value for measurement is followed by a value in other units in parentheses, the second value may be approximate. The first stated value is the requirement.1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements see Section 7.1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
标准号:
ASTM E779-19
标准名称:
Standard Test Method for Determining Air Leakage Rate by Fan Pressurization
英文名称:
Standard Test Method for Determining Air Leakage Rate by Fan Pressurization标准状态:
Active-
发布日期:
-
实施日期:
出版语种:
- 其它标准
- 推荐标准
- AS 4276.19:2014 Water microbiology Examination for thermophilic Campylobacter spp. - Membrane filtration
- AS 5013.19.1-2012 Food microbiology Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of ß-glucuronidase-positive Escherichia coli-Colony-count technique at 44°C using membranes and 5-bromo-4-chloro-3-indolylß-D-glucuronide (ISO 16649-1:2001, MOD)
- AS/NZS 1462.19(Int):1999 Methods of test for plastics pipes and fittings C-Ring test for fracture toughness of PVC pipes
- AS/NZS 2111.19.2:1996 (R2016)/Amdt 1:1998 Textile floor coverings - Tests and measurements - Colourfastness tests - Shampoo solution
- AS/NZS 4456.19:2003/Amdt 1:2004 Masonry units, segmental pavers and flags - Methods of test Determining of bow
- ASTM D1050-05(2022) Standard Specification for Rubber Insulating Line Hose
- ASTM D1053-92a(2018) Standard Test Methods for Rubber Property—Stiffening at Low Temperatures: Flexible Polymers and Coated Fabrics
- ASTM D1056-20 Standard Specification for Flexible Cellular Materials—Sponge or Expanded Rubber
- ASTM D1059-17(2022) Standard Test Method for Yarn Number Based on Short-Length Specimens
- ASTM D1062-08(2023) Standard Test Method for Cleavage Strength of Metal-to-Metal Adhesive Bonds
- ASTM D1065-18(2022) Standard Test Method for Unsaponifiable Matter in Pine Chemicals, Including Rosin, Tall Oil, and Related Products
- ASTM D1067-16 Standard Test Methods for Acidity or Alkalinity of Water
- ASTM D1073-16(2022) Standard Specification for Fine Aggregate for Asphalt Paving Mixtures
- ASTM D1076-23 Standard Specification for Rubber—Concentrated, Ammonia Stabilized, Creamed, and Centrifuged Natural Latex
- ASTM D1078-11(2019) Standard Test Method for Distillation Range of Volatile Organic Liquids