ASTM_D_6332_-_12_2021.pdf

Designation:D633212(Reapproved 2021)Standard Guide forTesting Systems for Measuring Dynamic Responses ofCarbon Monoxide Detectors to Gases and Vapors1This standard is issued under the fixed designation D6332;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This guide describes testing systems used for measuringresponses of carbon monoxide(CO)alarms or detectorssubjected to gases,vapors,and their mixtures.1.2 The systems are used to evaluate responses of COdetectors to various CO concentrations,to verify that thedetectors alarm at certain specified CO concentrations,and toverify that CO detectors do not alarm at certain other specifiedCO concentrations.1.3 The systems are used for evaluating CO detector re-sponses to gases and vapors that may interfere with the abilityof detectors to respond to CO.1.4 Major components of such a testing system include achamber,clean air supply module,humidification module,gasand vapor delivery module,and verification and control instru-mentation.1.5 For each component,this guide provides a comparisonof different approaches and discusses their advantages anddisadvantages.1.6 The guide also presents recommendations for a mini-mum configuration of a testing system.1.7 UnitsThe values stated in SI units are to be regardedas standard.No other units of measurement are included in thisstandard.1.8 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.For more specific safety precautionary information,see 6.2.1.9 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D1193 Specification for Reagent WaterD1356 Terminology Relating to Sampling and Analysis ofAtmospheresD1945 Test Method for Analysis of Natural Gas by GasChromatographyD3162 Test Method for Carbon Monoxide in the Atmo-sphere(Continuous Measurement by Nondispersive Infra-red Spectrometry)D3195 Practice for Rotameter CalibrationD3249 Practice for General Ambient Air Analyzer Proce-duresD3687 Test Method for Analysis of Organic CompoundVapors Collected by the Activated Charcoal Tube Adsorp-tion Method2.2 Other Standards:CFR 1910.1450 Occupational Exposure to HazardousChemicals in Laboratories3UL 2034 Single and Multiple Station Carbon MonoxideAlarms43.Terminology3.1 DefinitionsFor definitions of terms used in this guide,refer to Terminology D1356.3.2 Definitions of Terms Specific to This Standard:3.2.1 air change rate,nthe volume of clean,humidifiedair plus contaminants that enters the chamber in 1 h,divided bythe internal volume of the chamber,expressed as air changesper hour(h1).1This guide is under the jurisdiction of ASTM Committee D22 on Air Qualityand is the direct responsibility of Subcommittee D22.05 on Indoor Air.Current edition approved Sept.1,2021.Published September 2021.Originallyapproved in 1998.Last previous edition approved in 2017 as D6332 12(2017).DOI:10.1520/D6332-12R21.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from U.S.Government Printing Office,Superintendent ofDocuments,732 N.Capitol St.,NW,Washington,DC 20401-0001,http:/www.access.gpo.gov.4Available from Underwriters Laboratories(UL),UL Headquarters,333 Pfing-sten Road,Northbrook,IL,60062,http:/.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.13.2.2 chamber,nan enclosed test volume composed ofchemically inert materials supplied with a mixture of air,gases,or vapors,or combination thereof,having known composi-tions.3.2.3 CO alarm/detector,nan alarm device consisting ofan assembly of electrical and mechanical components withchemical,electrochemical,solid-state electronic,or other typesof sensors to detect the presence of CO gas in specified rangesof concentrations.3.2.4 sensor,nthe component included in the