《JIS-T-8205-2002-ENG.pdf》由会员分享，可在线阅读，更多相关《JIS-T-8205-2002-ENG.pdf（29页珍藏版）》请在三一文库上搜索。
1、J IS JAPANESE IN DUSTRIAL STANDARD Translated and Published by Ja pan ese Standards Association JIS T 8205 :*o2 Hydrogen su If ide ind icator/alarm ICs 13.340.30; 19.040; 71.040.40 Reference number : JIS T 8205 : 2002 (E) PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IH
2、S under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 02:45:56 MDTNo reproduction or networking permitted without license from IHS -,-,- T 8205 : 2002 Foreword T h i s translation has been made based on the original Japanese Industrial Standard revis
3、ed by the Minister of Economy, Trade and Industry, and Minister of Health, Labour and Welfare through deliberations at the Japanese Industrial Standards Committee in accordance with the Industrial Standardization Law. Consequently JI$ T 8205 : 1992 is replaced with JIS T 8205 : 2002. Date of Establi
4、shment: 1986-08-15 Date of Revision: 2002-04-25 Date of Public Notice in Official Gazette: 2002-04-25 Investigated by: Japanese Industrial Standards Committee Standards Board Technical Committee on Protective Equipment for Occupational Safety JIS T 8205 :2002, First English edition published in 2002
5、-12 Translated and published 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 2002 All rights reserved. Unless otherwise specified, no part of this publica
6、tion may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. Printed in Japan PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALic
7、ensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 02:45:56 MDTNo reproduction or networking permitted without license from IHS -,-,- T 8205 : 2002 Contents Page 1 2 3 4 5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 6 6.1 6.2 7 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 Scope Normative refere
8、nces Definitions Classification. type and air collecting system Performance Indication precision and alarm operating precision Repeatability Stability . Influence of inclination . Shock resistance Indication delay and alarm delay . Influence of power source voltage fluctuation Influence of temperatu
9、re change Construction . General construction . Construction of each part . Test method Sampling method . Indication precision test and alarm operating precision test . Repeatability test Standard conditions of test location Stability test . Inclination test . Shock test Indication delay and alarm d
10、elay test . Temperature test . 7.10 Power source voltage fluctuation test 8 Marking . 9 Instruction manual Annex (normative) Test gas (including calibration gas) and calibration method . 1 1 1 2 2 2 3 3 3 3 3 3 3 3 3 4 5 5 5 5 6 6 6 6 7 7 7 7 8 9 PROTECTED BY COPYRIGHT Copyright Japanese Standards A
11、ssociation Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 02:45:56 MDTNo reproduction or networking permitted without license from IHS -,-,- JAPANESE INDUSTRIAL STANDARD JIS T 8205 : 2002 Hydrogen sulfide indicator/alarm 1 Scope
12、This Japanese Industrial Standard specifies a hydrogen sulfide indica- tor/alarm used for measurement, supervision and warning of the concentration of hydrogen sulfide in an underground structure such as a pit, a manhole, a purifica- tion tank, a closed conduit, a basement; a ground structure such a
13、s a tank, a pipe, a channel, a vessel, a heat exchanger; and the inside of baggage racks of a ship and the like where hydrogen sulfide may be produced. Further, the working temperature range of hydrogen sulfide indicator/alarm specied in this Standard shall be O O C to 40 OC. 2 Normative references
14、The following standards contain provisions which, through reference in this Standard, constitute provisions of this Standard. The most recent editions of the standards (including amendments) indicated below shall be applied. JIS C 0930 Electrical apparatus for explosive gas atmospheres-General requi
15、re- ments JIS K 0108 Analytical methods for determination of hydrogen sulfide in exhaust gas 3 Definitions For the purposes of this Standard, the following definitions apply. detection part A portion of the hydrogen sulfide indicatodalarm which de- tects the concentration of hydrogen sulfide, direct
16、ly by contacting air at a mea- suring position. diffusion system An air-collecting system to allow air at a measuring posi- tion to contact with the detection part naturally. suction system An air-collecting system to allow air at a measuring position to contact with the detection part by sucking wi
17、th a pump or the like. hydrogen sulfide concentration indicator Hydrogen sulfide indicator wherein the concentration of hydrogen sulfide is measured, and the concentration is indicated on an indicator part which is separated from the detection part or in- tegrated therewith. hydrogen sulfide concent
18、ration alarm Hydrogen sulfide alarm wherein the concentration of hydrogen sulfide is measured. An alarm is issued when the concentration reaches the value which is previously set. An alarm part is sepa- rated from the detector part or integrated therewith. hydrogen sulfide concentration indicatorlal
19、arm A hydrogen sulfide indi- catodalarm of a structure having both functions of d) and e). stationary type A type installed to be fixed on a specific position. There are one-point system and multi-point system having plural detecting positions. movable type A type to be used in transportation by a c
20、arriage or a moving car. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 02:45:56 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 T 8205 :
21、 2002 Classification Hydrogen sulfide concentration indicator Hydrogen sulfide concentration alarm Hydrogen sulfide concentration indicatorlalarm portable type A type to be used by holding by hands. pocket type A type to be put into a pocket which is fixed to the body such as waist. test gas A gas t
22、o be used for confirming whether a hydrogen sulfide indica- tor/alarm rightly operates or not. calibration gas A gas to be used for calibrating a hydrogen sulfide indicator/ alarm among test gases. zero gas A calibration gas for determining the zero point of a hydrogen sul- fide indicatodalarm. Clea
23、n air or nitrogen not containing hydrogen sulfide is generally used. type test A test for confirming the quality of an initial product every time new designing, remodeling, or a change of production condition is carried out. delivery test A test to be carried out for confirming the quality of a prod
24、uct for each lot. Type Stationary Movable Portable Pocket type m e twe type o o o 0 o O o o 0 O 4 Classification, type and air collecting system The classification, type and air collecting system of a hydrogen sulfide indicator/alarm shall be as given in Table 1. Classification Hydrogen sulfide conc
25、entration indicator Table 1 Classification of hydrogen sulfide indicator/alarm Type Stationary Movable Portable Pocket type m e twe type o o Remarks : Air collecting system Diffusion system and suction system: 0 Diffusion system: O 5 Performance 5.1 Indication precision and alarm operating precision
26、 5 . 1 . 1 As to an indication precision, when subjected to the test of 7 . 3 . 1 , the hydro- gen sulfide concentration is within f 1.5 ppm for O ppm to 30 ppm of the indication range, and within + 3 ppm for other indication ranges. 5 . 1 . 2 As to an alarm operating precision, when subjected to th
27、e test of 7 . 3 . 2 , an alarm is issued at an optional alarm set concentration of not more than 10 ppm, and the hydrogen sulfide concentration shall be within +3 ppm to the alarm set concen- tration. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with
28、JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 02:45:56 MDTNo reproduction or networking permitted without license from IHS -,-,- 3 T 8205 : 2002 5.2 Repeatability When subjected to the test specified in 7.4, difference between each indication value and average sh
29、all be within If- 1 ppm in concentration of hydro- gen sulfide. 5.3 Stability When subjected to the test specified in 7.5, the indication precision and the alarm operating precision shall be as specified in 5.1.1 and 5.1.2, respec- tively. 5.4 When subjected to the test specified in 7 . 6 , the indi
30、cation precision and the alarm operating precision shall be as specified in 5.1.1 and 5.1.2, respectively. Influence of inclination 5.5 Shock resistance When subjected to the test specified in 7.7, the indication precision and the alarm operating precision shall be as specified in 5.1.1 and 5.1.2, r
31、espectively. 5.6 Indication delay and alarm delay When subjected to the test specified in 7 . 8 , the indication delay shall be within 30 s and the alarm delay shall be within 15 s. 5.7 Influence of temperature change When subjected to the test specified in 7.9, the indication precision, alarm opera
32、ting precision, indication delay and alarm delay shall be within the precision and the time specified in 5.1.1, 5.1.2 and 5.6, respectively. 5.8 Influence of power source voltage fluctuation When subjected to the test specified in 7.10, indication precision and alarm operating precision shall be the
33、 precision specified in 5.1.1 and 5.1.2, respectively. 6 Construction 6.1 General construction A hydrogen sulfide indicatodalarm consists of a de- tection part, an indication part and/or an alarm part, and shall be so structured the indication part and/or the alarm part may work converting change of
34、 the concentra- tion of hydrogen sulfide to an electric signal as follows: A stationary type shall be easy in installation, handling, maintenance and con- trol. Types excepting the stationary type shall be as light-weighted as possible, small sized, convenient for transportation and carrying and eas
35、y in handling, main- tenance and control. The construction of each part shall have sufficient strength and durability. As to metallic material, corrosion resistant material shall be used, or otherwise it is thoroughly processed on the surface with rust preventive treatment. The coating shall excelle
36、ntly be finished and not easily discolored nor peeled off. Each part shall be smoothly and accurately operated corresponding to its pur- pose. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie No
37、t for Resale, 03/14/2007 02:45:56 MDTNo reproduction or networking permitted without license from IHS -,-,- 4 T 8205 : 2002 f) g) When being in an operating state, the state shall easily be discriminated. In the case where an explosion-proof property is required, the construction shall conform to th
38、e requirements specified in JIS C 0930. 6.2 Construction of each part 6.2.1 For the air collecting system of a detection part, there are two kinds, a diffu- sion type and a suction type. 6.2.2 Indication part The indication range shall be O ppm to 30 ppm, or O ppm to 2 30 ppm in hydrogen sulfide con
39、centration. The digital system shall be capable of indicating at least 0.5 ppm. 6.2.3 Alarm part An alarm part shall be as follows: An alarm part is capable of setting at any concentration ( S 10 ppm) within the indication range, and gives an alarm at the set concentration or over. Alarm is given by
40、 light, sound or vibration, or joint use thereof. Once given an alarm, the alarm continues even though the concentration of hy- drogen sulfide becomes lower than the alarm set concentration until the relief operation is carried out. However, as to those of the movable type, the portable type, and th
41、e pocket type, this requirement is not applied thereto. The mechanism is provided wherein an alarm sound stops by carrying out the relief operation, and the other alarm continues until the concentration of hy- drogen sulfide becomes lower than the alarm set concentration. However, this requirement i
42、s not applied to those of the movable type, the portable type and the pocket type. In the case where other detection parts catch the increase of concentration of hydrogen sulfide under the alarm working, the stationary type multi-point sys- tem shall give an alarm at each position detected. PROTECTE
43、D BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 02:45:56 MDTNo reproduction or networking permitted without license from IHS -,-,- 5 T 8205 : 2002 Test item 7 Test method 7.1
44、 Sampling method A sampling method shall be as given in Table 2. Hydrogen sulfide Hydrogen sulfide Hydrogen sulfide concentration concentration concentration indicator alarm indicator/alarm General construction Construction of each part Indication precision Alarm operating precision o Q Q Q o o o Q
45、o o Repeatability Stability of indication precision Stability of alarm operating precision Influence of inclination Shock resistance Indication delay Alarm delay O O O O O O O O O O O O O O O O O Remarks : Type test and delivery test: O Type test: O Influence of temperature change Influence of power
46、 source voltage fluctuation 7.2 Standard conditions of test location The standard conditions of a test loca- tion shall be 20 f 2 “C in temperature, (65 * 20) % in humidity and 860 hPa to l 060 hPa in atmospheric pressure. O O O O 7 . 3 Indication precision test and alarm operating precision test 7.
47、3.1 Indication precision test Make the hydrogen sulfide indicatodalarm be in a working state. After the stability time shown in Table 3 has elapsed, carry out the calibration of indication by using the calibration gas specified in Annex, intro- duce not less than three different concentrations of te
48、st gas centering 10 ppm into the detection part, and examine difference between the concentration indicated by indicatodalarm and the concentration of the test gas. As to the indicatodalarm of over 30 ppm in indication range, add examination with the test gas of an optional concentration exceeding 30 ppm. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 02:45:56 MDTNo reproduction or networking permitted without license from IHS -,