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1、t f J IS JAPANESE I NDUSTRIAL STANDARD Translated and Published by Japanese Standards Association JIS B 9901 Gas-removal - performance of 1997 Method of test for g as-removal fi Iters . * b ICs 23.120 Descriptors : filters, air filters, performance testing Reference number : JIS B 9901 : 1997 (E) 7s
2、 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 07:28:20 MDTNo reproduction or networking permitted without license from IHS -,-,- B 9901 : 1997 Foreword This translation has been made bas
3、ed on the original Japanese Industrial Standard revised by the Minister of International Trade and Industry through deliberations at Japanese Industrial Standards Committee in accordance with the Industrial Standardization Law. Consequently, JIS B 9901:1994 has been revised and replaced with this St
4、andard. Date of Establishment: 1978-03-01 Date of Revision: 1997-09-20 Date of Public Notice in Oficial Gazette: 1997-09-22 Investigated by: Japanese Industrial Standards Committee Divisional Council on General Machinery JIS B 9901 : 1997, First English edition published in 1998-01 Translated and pu
5、blished by: Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the contents, the original JIS is to be the final authority. O JSA 1998 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
6、 or utilized in any form or by any means, electronic or mechanical, iiicluding photocopying and microfilm, without permission in writing from the publisher. Printed in Japan 1 - ? Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=W
7、ing, Bernie Not for Resale, 03/13/2007 07:28:20 MDTNo reproduction or networking permitted without license from IHS -,-,- JAPANESE INDUSTRIAL STANDARD JIS B 9901 : 1997 spe I Structure Gas-removal-Method of test for performance of gas-removal filters Use 1 Scope This Japanese Industrial Standard spe
8、cifies the method of test for perfor- mance of gas-removal filters () used for air conditioning and ventilation for removing specific harmful gases contained in the ambient air constituting the living environment and work environment. Dry Note () Gas-removal filters are classified into panel form an
9、d winding form by the shape, and the charged contents are classified as follows by the kind of the harmful gases. High concentration and low concen- tration Low concentration Adsorbent or absorbent packed panel form Adsorbent or absorbent affixing panel form Adsorbent or absorbent affuring winding f
10、orm Low concentration 2 Definitions For the purpose of this Standard, the following definitions apply. (1) rated gas quantity A marked gas quantity of a filter which is converted to stan- dard condition (20C in temperature, and 1.013 x lo3 hPa in atmospheric pressure). It is expressed by m3/min. (2)
11、 pressure loss A total pressure difference between the upstream side and the down- stream side of a filter. It is expressed by Pa. (3) testing clean air Air which is supplied in a test, which, preferably, keeps cleanli- ness given in Table 1. Table 1 Testing clean air Item Temperature Relative humid
12、ity Dust concentration Gas concentration Condition 23 f 3C 55 f 10%RH 0.15 mg/m3 or under (“) Not exceeding environmental reference value established in Basic Law for Environmental Pollution Control f) Notes () A concentration measured according to a measuring method designated in (“) For gases not
13、specified in the environmental standard, cleanliness having no Law and enforcement regulations for maintenance of sanitation in buildings. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 07
14、:28:20 MDTNo reproduction or networking permitted without license from IHS -,-,- I Classification of test gas Sulfur dioxide SOz Hydrogen chloride HC1 Ammonia NH3 2 B 9901 : 1997 Concentration of test gas (ppm) When gas-removal When gas removing efficiency is tested capacity is tested 0.5 20 10 1 O0
15、 10 1 O0 influence to the test shall be kept. Carbon monoxide CO Nitrogen oxides NO, (NOZ, NO) ( (4) equilibrium ventilation Making the temperature and humidity of a filter under an equilibrium state by ventilating testing clean air at a rated gas quantity for 2 h. (5) gas-removal efficiency A ratio
16、 of difference of gas concentration between the up- stream side and the downstream side to a gas concentration on the upstream side of a filter obtained in the case of operation at a rated gas quantity. It is expressed by percentage (%). b (6) gas removing capacity A gas quantity adsorbed or absorbe
17、d until the gas-removal efficiency of a filter lowers to 85% of an initial gas removal efficiency. It is ex- pressed by liter ( 1 ). 50 1000 0.5 10 3 Test items The items for the performance test of a filter shall be as follows: Chlorine CI Ozone 0 3 (1) Pressure loss test (2) Gas-removal efficiency
18、 test (3) Gas removing capacity test 1 10 O. 5 - 4 Classification and concentration of test gases The classification and concentra- tion of test gases shall be as given in Table 2, and their tolerance range shall be f 10 % of the values given in Table 2. Toluene CGHCH Acetone CH3COCH3 3 1000 50 1000
19、 Formaldehyde HCHO n-Butane CH3(CHz)zCH3 1 10 50 1000 Hydrogen sulfide HzS Fluorine compound HF 1 20 0.02 0.2 Note () NO, and NO shall be used individually. i Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for R
20、esale, 03/13/2007 07:28:20 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS B 9901-ENGL 1997 4933b08 0548405 7UT m 3 B 9901 : 1997 5 Test apparatus (1) Test apparatus The test apparatus shall be as given in Fig. 1 and a constitutional example of a test system shall b
21、e as given in Fig. 2. Further, a suitable flange shall be used according to the shape and size of filter which shall be installed on the test apparatus so as to cause no leakage. (2) Test gas generation method The generation method of a test gas shall be as given in Table 3. (3) Measuring instrument
22、 The measuring instruments shall be as follows: (a) The measuring instrument for pressure loss shall be a manometer (including the electronic type). (b) The measuring instrument for gas quantity shall be an orifice specified in JIS B 8330, otherwise a Pitot tube or an anemometer specified in JIS T 8
23、202. The method for measurement of gas concentration shall be as given in Table 4. (c) Unit: mm 0 High concentration gas induction opening 3 Pressure loss measuring hole Venturi tube Manometer 8 Manometer for orifice 0 Orifice Connection duct Square duct I Blower Baffle plate 50% max. open Rectifica
24、tion lattice 0 Thermometer Flange I Test gas sampling hole Test gas sampling valve Specimen Throttle apparatus Connection duct Roundduct Fig. 1 Test apparatus for performance of gas-removal filters Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/
25、1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 07:28:20 MDTNo reproduction or networking permitted without license from IHS -,-,- 4 B 9901 : 1997 Air a 0 Exhaust 0 Air cleaner Test air regulator (impurity removal and temperature and humidity regulation) High concentration test gas flowmete
26、r Gas dispersion duct Square duct Temperature and humidity detection control circuit Specimen Excess air exhaust duct Temperature and humidity detecting part Test gas generator Gas pressure regulator Gas flow rate control valve Gas by-pass flow rate control valve Gas by-pass pipe Test gas sampling h
27、ole 8 Manometer Orifice flowmeter Blower Exhaust gas processing air cleaner Throtde apparatus Damper Fig. 2 Structural example of test system for performance of gas-removal lters Table 3 Gas generation method Gas generation method By gas contained in a container on the market Bv exclusive use genera
28、tor By Fig. 3 By gas contained in a container on the market By para-formaldehyde -diffusion cell method or by gas con- tained in a container on the market By gas contained in a container on the market Classification of test gas Sulfur dioxide SO2 Hydrogen chloride HC1 Ammonia “ 3 Carbon monoxide CO
29、Nitrogen oxides NO, (Noz. NO) Chlorine Clz Ozone 0 3 Acetone CH3COCH3 Formaldehyde HCHO , Toluene CGHCH n-Butane CH3EHzhCH3 Hydrogen sulfide HzS Fluorine compound HF , Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie
30、Not for Resale, 03/13/2007 07:28:20 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS 8 9901-ENGL 2997 m 4933b08 0548407 58Z a 5 B 9901 : 1997 0 Flow rate control valve 6) Flowmeter Temperature conditioning coil Solvent storing bottle (1 i ) Vacant bottle 0 Constant t
31、emperature water bath Test gas generation bottle (3 1 ) Heater Fig. 3 Toluene and acetone test gas generation system (an example) 6 Test methods 6.1 Pressure loss test For a pressure loss test, equip the test apparatus given in Fig. 1 with a filter so as not to have leakage, circulate the testing cl
32、ean air relating to three points of 80 %, 100 %, and 120 % of rated gas quantity, and measure the total pressure difference between the upstream side and the downstream side with a ma- nometer. 6.2 Gas-removal efficiency test For a gas-removal efficiency test, equip the test ap- paratus given in Fig
33、. 1 with a filter so as not to have leakage, and perform the test as follows. Preparation Exfoliate dirt or the like on the adsorption or absorption face of a filter therefrom, and circulate testing clean air at a rated gas quantity for 2 h in order to keep temperature and humidity (water content) u
34、nder an equilibrium state. Supply of gas Supply gas at a specified flow rate into a gas dispersion duct from the gas generator given in Table 3 so that a gas concentration on the upstream side of the filter in the test apparatus becomes the value given in Table 2. Allow the con- centration of test g
35、as in the test apparatus at this time to be within a range off: 5 % of the concentration of gas supplied at the section of an upstream side measur- ing point. Further, regulate the variation of the concentration within the test time so as to be within a range of f . 1 G % of average concentration du
36、ring the test time. Measurement of gas concentration After operation for 10 inin in a steady state specified in 6.3 (2), suck test air simultaneously from suction pipes opposed parallel to air flow at almost central one point of ducts on the upstream side and the down- stream side of the filter, and
37、 measure the concentration of gas therein according to the method given in Table 4. Calculation of gas-removal efficiency Calculate the gas-removal efficiency from Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not
38、for Resale, 03/13/2007 07:28:20 MDTNo reproduction or networking permitted without license from IHS -,-,- 6 B 9901 : 1997 the following formula: c i - c, ci q = - x 100 where, 7 : gas-removal efficiency (%) Cl: gas concentration in upstream side of filter (ppm or ml/m3) C,: gas concentration in down
39、stream side of filter (ppm or ml/m3) (5) Frequency of measurement Measure the gas-removal efficiency three times, and express it by the average value thereof. Table 4 Measuring methods of gas concentration Classification of test gas Sulfur dioxide SOz en, s, e (as sulfur oxides) Hydrogen chloride HC
40、1 s, e Ammonia NH3 s, e, od Carbon monoxide CO en, s, e Measuring method Neutralization titration method Precipitation titration method Turbidimetry OIon chromatograph method Conductometric met hod Coulometric method Ultraviolet absorption method Infrared analytical method APararosaniline absorptiom
41、etric methoc, (for calibration) Controlled potential electrolytic method Gas chromatograph flame photometric method Silver nitrate titration method AIon selective electrode method AMercury (II) thiocyanate absorptiometric method (for calibration) OIon chromatoeiraDh method Indophenol absorptiometric
42、 method AGas chromatograph method OConductometric method Infrared analytical method Ion chromatograph method ADiaphragm electrode method OInfrared analytical method AGas chromatograph aflame ionization detector method AControlled potential electrolytic method Iodine Dentoxide titrimetric method Norm
43、ative references JIS K 0103 JIS B 7952 JIS B 7981 JIS K 0107 JIS K O099 JIS K 0098 JIS B 7951 JIS D 1028 JIS D 1030 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 07:28:20 MDTNo reproducti
44、on or networking permitted without license from IHS -,-,- STD-JIS B 79DL-ENGL 1997 D 4933b08 0548409 355 Y AIon chromatograph method AZinc reduction-naphtyl etylenediamine absorptiometric method Phenol disulfonate absorptiometric method 3 Chemilumine scence method Icontrolled potential electrolytic
45、method Ultraviolet absorption method Infrared analytical method of non-dispersive system ISaltzman absortpiometric method Aptolidine absorptiometric method 30ABTS (for calibration) absorptiometric method 3Ultraviolet absorption method 3Diaphragm electrode method 7 B 9901 : 1997 Table 4 (concluded) l
46、assification of test gas litrogen oxides NO, (NOZ, NOf) NO2 en, e, t (NOZ) :hlorine Cl2 s, e )zone O: en ketone CH3COCH3 ?ormaldehyde HCHO s, t, e n-Butane CH(CHYCH Hydrogen sulfide HzS c, e, od Fluorine compound HF e, t, s Measuring method APotassium iodide absorptiometric method (Ox) 3Ultraviolet
47、absorption method (for calibration) Chemiluminescence method Potassium iodide coulometric method 3Gas chromatograph- flame ionization detector method AInfrared analvtical method 3Gas chromatograph- flame ionization detector method Infrared analytical method A4-amino-3-hydrazino-5-mercapto- 1,2,4-tri
48、azol absorpti- ometric method (AHMT absorptiometric method) 02,4-dinitrophenylhydrazine collection-gas chromato- graph method (DNPH-GC method) A2,4-dinitrophenylhydrazine collection-high perform- ance liquid chromatograph method (DNPH-HPLC method) AChromotroDic acid absomtiometric method OGas chromatograph- flame ionization detector method AInfrared analytical method AIon selective electrode method, Silver sulfate potenti- OMethylene blue colorimetr