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ASHRAE 120 : 2017

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

METHOD OF TESTING TO DETERMINE FLOW RESISTANCE OF HVAC DUCTS AND FITTINGS
Available format(s)

Hardcopy , PDF

Superseded date

04-01-2022

Language(s)

English

Published date

01-01-2017

Publisher

American Society of Heating, Refrigerating & Air Conditioning Engineers

Foreword
1 Purpose
2 Scope
3 Definitions, Symbols, and Subscripts
4 Compliance Requirements
5 Applicability
6 Instrumentation
7 Flow Measuring Systems and Test Setups
8 Observations and Conduct of Test
9 Calculations
10 Test Results and Report
11 References
Informative Annex A - Time-Weighted Average
Informative Annex B - Leakage Measurement
Informative Annex C - Flexible Duct Test Setup Guide
Informative Annex D - Example Test Systems

Provides uniform methods of laboratory testing of HVAC ducts and fittings to determine their resistance to airflow.

.1 This standard may be used to determine the change in total pressure resulting from airflow in HVAC ducts and fittings. 2.2 The test results can be used to determine duct flow losses in pressure loss per unit length. Fitting losses are reported as local loss coefficients.2.3 This standard does not cover interpretation of test data.

Committee
TC 5.2
DocumentType
Standard
Pages
56
PublisherName
American Society of Heating, Refrigerating & Air Conditioning Engineers
Status
Superseded
SupersededBy
Supersedes

ASHRAE HDBK REFRIGERATION : 2014 ASHRAE HANDBOOK - REFRIGERATION

ASHRAE 41.1 : 2013 STANDARD METHOD FOR TEMPERATURE MEASUREMENT
ASHRAE 41.6 : 2014 METHOD FOR HUMIDITY MEASUREMENT
AMCA 210 : 2016 LABORATORY METHODS OF TESTING FANS FOR CERTIFIED AERODYNAMIC PERFORMANCE RATING
ASHRAE 41.3 : 2014 METHODS FOR PRESSURE MEASUREMENT
ISO 5167-1:2003 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full Part 1: General principles and requirements

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Hardcopy - English
PDF - English
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