1、 Method for Measuring Performance of Portable Household Electric Room Air Cleaners ANSI/AHAM AC-1-2015 p i ANSI/AHAM AC-1-2015 PREFACE The Association of Home Appliance Manufacturers (AHAM) develops standards in accordance with AHAMs “Policy and Procedures Governing Technical Standards“ which states
2、: “AHAM Standards shall be in the best interest, mutually, of consumers who use appliances, the industries which provide and service appliances, and other interested parties. They shall relate to actual use conditions, be technically and scientifically sound.“ Use or observance of AHAM standards is
3、voluntary. AHAM standards are presented to the American National Standards Institute (ANSI) for recognition as American National Standards. This standard was so recognized on May 13, 2015 and bears the American National Standard designation ANSI/AHAM AC-1-2015. This standard contains test procedures
4、 which may be applied to any brand or model of portable household electric room air cleaners within the stated confines of the standards limits of measurability for measuring performance. Results of tests in accordance with this standard may be publicly stated. With regard to safety, AHAM recommends
5、 that all appliance products - both major and portable appliances - manufactured or marketed in the United States be submitted to an appropriate independent Nationally Recognized Testing Laboratory for inspection and listing in conformance with the safety standards and procedures followed by such la
6、boratories. The relevant standards for portable household electric room air cleaners are UL 867, “Standard for Electrostatic Air Cleaners“ and UL 507, “Standard for Fans.“ The annexes to this standard are included for informational purposes only unless the annexes are noted as normative. AHAM welcom
7、es comments and suggestions regarding this standard. Any standard may be reviewed and improved as needed. All standards must be updated or reconfirmed at least every five years. Any interested party, at any time, may request a change in an AHAM standard. Such request should be addressed to AHAMs Pre
8、sident, and should be accompanied by a statement of reason for the request and a suggested alternate proposal. This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibil
9、ity of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of any regulatory limitations prior to use. Copyright 2015 by the Association of Home Appliance Manufacturers (AHAM) All rights reserved. The hard copy print version of
10、this document shall be for individual use only. The electronic file version of this document shall be for storage on one computer for purposes of viewing and/or printing one copy for individual use only. This document shall not be reproduced in whole or in part by any means, and shall not be transmi
11、tted electronically or otherwise to a third person without the prior written permission of AHAM. p ii ANSI/AHAM AC-1-2015 TABLE OF CONTENTS 1. PURPOSE . 1 2. SCOPE . 1 3. DEFINITIONS 2 3.1 Portable Household Electric Room Air Cleaner (“Air Cleaner”) . 2 3.2 Design Characteristics of Portable Househo
12、ld Electric Room Air Cleaners 3 3.3 Test Particulate Matter 3 3.4 Test Chamber 3 3.5 Air Circulating Equipment 4 3.6 Particulate Matter Removal . 4 3.7 High Efficiency Particulate Air (HEPA) Filter . 4 3.8 Aerosol Generator . 4 3.9 Cigarette Humidity Chamber 4 3.10 Particle Number Concentration . 4
13、3.11 Aerosol Spectrometer 5 3.12 Cigarette Smoke Diluter 5 3.13 Natural Decay 5 3.14 Clean Air Delivery Rate (CADR) . 5 3.15 Room Size . 5 4. GENERAL CONDITIONS FOR MEASUREMENT . 6 4.1 Electrical Supply . 6 4.2 Test Chamber Ambient Temperature 6 4.3 Test Chamber Air Exchange Rate . 6 4.4 Test Chambe
14、r Particulate Concentrations . 6 4.5 Chamber Equipment 7 4.6 Test Equipment Preparation 7 5. TEST PROCEDURE FOR DETERMINING PERFORMANCE ON CIGARETTE SMOKE. . 8 5.1 Natural Decay Measurement . 8 5.2 Cigarette Smoke Particulate Matter Removal Measurement with Air Cleaner Operating (includes natural de
15、cay) 9 6. TEST PROCEDURE FOR DETERMINING PERFORMANCE ON TEST DUST 11 6.1. Natural Decay Measurement . 11 6.2. Dust Particulate Matter Removal Measurement with Air Cleaner Operating (includes natural decay). . 12 7. TEST PROCEDURE FOR DETERMINING PERFORMANCE ON PAPER MULBERRY POLLEN 13 7.1 Natural De
16、cay Measurement . 13 7.2 Pollen Particulate Matter Removal Measurement with Air Cleaner Operating (includes natural decay). 14 p iii ANSI/AHAM AC-1-2015 8. CALCULATION PROCEDURES (Refer to Annex D) . 16 8.1 Criteria for Elimination of Data Points from an AC-1 Run 16 8.2 Calculating the Decay Constan
17、t 16 8.3 Computation of the Standard Deviation Estimate for the Slope of One Regression Line 17 8.4 Performance Calculation. 18 8.5 Calculation of the Standard Deviation Estimate of the CADR for a Single Test . 18 8.6 Calculation of Suggested Room Size 18 9. MEASUREMENT OF OPERATING POWER 20 9.1 Con
18、ditions of Measurement 20 9.2 Conditioning of Air Cleaner Prior to Measurement 20 9.3 Measurement Procedure 20 9.4 Operating Power Results . 20 10. MEASUREMENT OF STANDBY POWER 21 10.1 Conditions of Measurement 21 10.2 Preparation of Air Cleaner Model for Testing 21 10.3 Test Procedure . 21 10.4 Tes
19、t Results . 21 11. REPORTING . 22 12. SAFETY 22 ANNEX A NORMATIVE DETAILS OF TEST CHAMBER CONSTRUCTION AND EQUIPMENT . 23 ANNEX B - NORMATIVE 28 ANNEX C - INFORMATIVE 29 ANNEX D - NORMATIVE . 33 ANNEX E - INFORMATIVE 34 ANNEX F - INFORMATIVE 36 ANNEX G TEST STAND FOR WALL MOUNT AND PLUG-IN TYPE AIR
20、CLEANERS . 46 ANNEX H INFORMATIVE . 47 p 1 ANSI/AHAM AC-1-2015 1. PURPOSE This standard method establishes uniform, repeatable procedures and standard methods for measuring specified product characteristics of portable household electric room air cleaners. The standard methods provide a means to com
21、pare and evaluate different brands of portable household electric room air cleaners regarding characteristics significant to product use. The standard methods of measurement are not intended to inhibit improvement and innovation in product testing, design or performance. 2. SCOPE This standard metho
22、d applies to portable household electric room air cleaners as defined in Section 3. This standard method includes definitions and safety characteristics of portable household electric room air cleaners of the types indicated. This standard method measures the relative reduction by the air cleaner of
23、 particulate matter suspended in the air in a specified test chamber. It also prescribes a method for measuring the operating power and standby power of the air cleaner. This standard method has defined limits of measurability based on the statistical accuracy of the methods. Based on a 95% confiden
24、ce limit (2 standard deviations), a CADR cannot be distinguished between zero (0) and a CADR rating less than those CADR limits shown below. Therefore, the standard only applies to air cleaners with minimum CADR ratings of: Dust CADR = 10 cfm Cigarette smoke CADR = 10 cfm Pollen CADR = 25 cfm The ma
25、ximum CADR values are determined based on theoretical maximum limits. The theoretical maximum limits are determined by the maximum number of initial available particles, the acceptable minimum number of available particles, an average background natural decay rate (from statistical study), the size
26、of the test chamber, and the available minimum experiment time. CADR values for dust and cigarette smoke greater than those listed will not have the necessary statistical data required by this method. CADR values for pollen greater than those listed will not have the necessary statistical data requi
27、red by this method. CADR values for pollen approaching that listed are normally determined by pooling of the test value data determined under this method. Therefore, the standard only applies to air cleaners with maximum CADR ratings of: Dust CADR = 400 cfm Cigarette smoke CADR = 450 cfm Pollen CADR
28、 = 450 cfm The precision of the Standard as based on a 0 CADR air cleaner expressed as 2 standard deviation limits (95%) are: p 2 ANSI/AHAM AC-1-2015 Dust CADR = + 10 cfm Cigarette Smoke CADR = + 10 cfm Pollen CADR = + 25 cfm 3. DEFINITIONS 3.1 Portable Household Electric Room Air Cleaner (“Air Clea
29、ner”) An electric appliance with the function of removing particulate matter from the air and which can be moved from room to room. Herein referred to as “air cleaner.” 3.1.1 Air Cleaner - Floor Type Floor type air cleaners are designed to stand alone on the floor of a room and are designated as sta
30、nd-alone floor models by the manufacturer. Appliances of this type are tested on the floor facing the test window as close to the center of the test chamber as possible. 3.1.2 Air Cleaner - Table Type Table type air cleaners are designed to set on a table or counter by the manufacturer. Appliances o
31、f this type are tested on the table stand facing the test window at the center of the test chamber. 3.1.3 Air Cleaner - Wall Type Wall type air cleaners are designed either to attach to a wall and are designated as wall mountable by the manufacturer or as a plug-in air cleaner. A wall type air clean
32、er must include appropriate wall mounting brackets or specifically designated instructions to mount the air cleaner integrally to the wall (i.e. not a shelf). Appliances of this type are tested on the wall mount stand facing the test window placed at the center of the test chamber (refer to Annex G)
33、. 3.1.4 Air Cleaner - Combination Type Combination type air cleaners are designed to operate in one or more orientations/positions (floor, table, wall) as designed by the manufacturer. A combination type air cleaner may be tested at the center of the test chamber facing the test window on the floor,
34、 table, or wall mount stand, according to how it has been designated by the manufacturer (See 3.1.1, 3.1.2 and 3.1.3). 3.1.5 Air Cleaner - Ceiling Type Air cleaner appliances designed to be mounted on the ceiling are considered outside the scope of this method as defined in Section 3. Uniform testin
35、g practices and statistical examination of such appliances have not been conducted. 3.1.6 Air Cleaner - Plug-In Type A fixed location air cleaner directly connected to an electric receptacle (outlet) by means of direct plug-in (no electric cord). Appliances of this type are tested at the lower level
36、 electrical receptacle of the plug-in type test stand facing the test window as shown in Annex G. p 3 ANSI/AHAM AC-1-2015 3.2 Design Characteristics of Portable Household Electric Room Air Cleaners 3.2.1 Fan with Filter Air cleaners that operate with an electrical source of power and which contain a
37、 motor and fan for drawing air through a filter media. 3.2.2 Fan and Electrostatic Plates Air cleaners that operate with a fan and incorporate electrically charged plates or wires to electrostatically collect particulate matter. Such devices may include a filter(s). 3.2.3 Fan Filter with Ion Generat
38、or Air cleaners that incorporate an ion generator in addition to a fan and filter. 3.2.4 Ion Generator Air cleaners that incorporate an ion generator only. 3.2.5 Hybrid Any air cleaner employing a combination of the above definitions of fan with filter, electrostatic plate/wire, and ion generator. 3
39、.2.6 Other Types A device that has the stated capability to reduce the concentration of particulate matter in a room. Such devices do not have to contain a fan and can incorporate any of the particle removal methods noted above. 3.3 Test Particulate Matter 3.3.1 Cigarette Smoke Smoke produced by bur
40、ning cigarette tobacco with air forced through the cigarettes filter having particle sizes detected from 0.10 m to 1.0 m diameter. 3.3.2 Air Cleaner Fine Fraction Test Dust Commercially available test dust with particle sizes detected from 0.5 m to 3.0 m. 3.3.3 Pollen Particulate matter naturally oc
41、curring from plants. The pollen to be used is Paper Mulberry Pollen (non-defatted) with a particle size range of 5 m to 11 m, including fragments. 3.4 Test Chamber The room size chamber for determining performance in removing particulate matter from the air. (The specifications for the AHAM chamber
42、are in Annex A.) p 4 ANSI/AHAM AC-1-2015 3.5 Air Circulating Equipment 3.5.1 Ceiling mixing fan A high volume ceiling fan used to mix the test chamber during contaminant aerosol generation. 3.5.2 Recirculation Fan A fan capable of producing between 300 and 400 cfm and used for the purpose of maintai
43、ning a homogeneous environment within the test chamber (as specified in Annex A). 3.6 Particulate Matter Removal The reduction of particle number concentration in air due to the operation of the air cleaner. 3.7 High Efficiency Particulate Air (HEPA) Filter An air filter with greater than or equal t
44、o 99.97% removal of dioctyl phthalate at 0.3 m diameter. NOTE: The fractional efficiency of such filters can be verified using Mil-Std-282 or IEST-RP-CC007.1 3.8 Aerosol Generator A device that produces and disseminates liquid or solid particles that are suspended in air. 3.8.1 Cigarette Smoke Gener
45、ator An aerosol generator that disseminates test cigarette smoke with particle sizes specified in Section 3.3.1 into the air. 3.8.2 Dust Generator An aerosol generator that disseminates test dust with particle sizes specified in Section 3.3.2 into the air. 3.8.3 Pollen Generator An aerosol generator
46、 that disseminates test pollen with particle sizes specified in Section 3.3.3 into the air. 3.9 Cigarette Humidity Chamber A chamber able to maintain a temperature of 39oF 3.6oF (4oC 2oC) and relative humidity of (50 10) %, for the long-term storage of test cigarettes 3.10 Particle Number Concentrat
47、ion Number of particles per cubic centimeter of room air. 3.10.1 Initial Concentration The particulate concentration at the start of test time (t=2 for smoke test, t=0 for dust or pollen test). 3.10.2 Background Concentration The particulate concentration in the test chamber before the particulate i
48、s introduced to the chamber. p 5 ANSI/AHAM AC-1-2015 3.11 Aerosol Spectrometer Device for measuring particle size distribution in room air (See Annex A). 3.12 Cigarette Smoke Diluter Device for reducing the concentration of cigarette smoke by a known factor to a concentration suitable for instrument
49、 measurement. 3.13 Natural Decay The reduction of particulate matter due to natural phenomena in the test chamber: principally agglomeration, surface deposition (including sedimentation), and air exchange. 3.14 Clean Air Delivery Rate (CADR) The measure of air cleaner performance by this test procedure Clean Air Delivery Rate (CADR) is defined as the measure of the delivery of contaminant free air, within the defined particle size range, by an air cleaner, expressed in cubic feet per minute (cfm). Clean Air Delivery Rates are the rates of contaminant
