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1、J I S Z*8?03 83 4933b08 0079352 T i J IS y- UDC 620.171 JAPANESE I NDUSTRIAL STANDARD Standard Atmospheric Conditions for Testing Translated and Published by J apanese Standards Associa ti on Printed in Japan 4 s Translation without guarantee standard in Japanese is to be evidence in the event of an
2、y doubt arising, the original I c i I UDC 620.171 JAPANESE INDUSTRIAL STANDARD J I S Standard Atmospheric Conditions for Testing Z 8703- 1983 1. Scope conditions concerning the temperature, humidity and atmospheric pressure in the place where the tests (including the conditioning for the tests) in t
3、he mining and manufacturing industries are carried out, provided that the atmospheric conditions for the testing of things that are required to be tested in special atmospheric conditions are not included. This Japanese Industrial Standard specifies the standard atmospheric 2, Standard Atmospheric C
4、onditions 2.1 of the to the Temperature of Standard Atmospheric Conditions standard atmospheric conditions shall be 20%, 23% or 25%, according purpose of testing. The temperature Corresponding International Standards : IS0 554- 1976 Standard atmospheres for conditioning and/or testing- Specification
5、s IEC Publication 160- 1963 Standard atmospheric conditions for test purposes -,-,- . J I S Z*A703 83 W Y933b08 0079355 5 2 Z 8703-1983 2.2 Humidity of Standard Atmospheric Conditions The relative humidity of the standard atmospheric conditions shall be either 50 % or 65 %. 2.3 Air Pressure of Stand
6、ard Atmospheric Conditions The pressure of the standard atmospheric conditions shall be not less than 86 kPa and not more than 106 kPa. I 2.4 Standard Atmospheric Conditions The standard atmospheric conditions shall be the combination of a temperature and a humidity of standard atmo- spheric conditi
7、ons under the standard atmospheric air pressure. Remark : A temperature of standard atmospheric conditions alone may be specified, depending on the purpose of the testing. condition is called as the standard atmospheric temperature condition. That References 1. IS0 554- 1976 specifies three standard
8、 atmospheres for testing, of which the recommended is of 23OC tempera- ture, 50 % relative humidity and not less than 86 kPa and not more than 106 kPa pressure. 2. IEC Publication 160- 1963 recommends that the atmo- sphere for making measurement should be within 15 to 35% temperature, 45 to 75 % rel
9、ative huhidity and 860 to 1060 mbar air .pressure, and specifies the standard atmospheric conditions of 20% temperature, 65 % relative humidity and 1013 mbar air pressure as the basis for mutual comparison. Further, it specifies three standard atmospheric conditions for conditioning and the measurem
10、ent for examination. Remark: 1013 mbar is identical with 101.3 kPa. 3, Tolerances on Standard Atmospheric Conditions 3.1 Tolerances on Temperatures of Standard Atmospheric Conditions The tolerances on the temperatures of the standard atmospheric conditions shall be classified as given in Table 1 acc
11、ording to the purposes of testing. Remark: Table 1 is also applicable to the standard atmospheric tem- perature condition. Class 3 Z 8703-1983 Tolerances OC Table 1 Class O. 5 temperature Class 1 temperature Class 2 temperature Class 5 temperature Class 15 temperature i 0.5 i 1 i 2 It5 i 15 Class Cl
12、ass 2 humidity Class 5 humidity Class 10 humidity Class 20 humidity Remark: Class 15 temperature is only applicable to 2OoC temperature of the standard atmospheric conditions. In addition, the temperature range of 5 to 35% is called the ordinary temperature. Tolerances % ? 2 i 5 i 10 2 20 3.2 Tolera
13、nces on Humidities of Standard Atmospheric Conditions The tolerances on the humidities of the standard atmospheric conditions shall be classified as given in Table 2 according to the purposes of testing. Table 2 In addition, the humidity range of 45 to 85 % is called the ordinary humidity. 3.3 Toler
14、ances on Standard Atmospheric Conditions The tolerances on a standard atmospheric conditions shall be composed of a tolerance on the temperature of standard atmospheric conditions and a tolerance on the humidity of standard atmospheric conditions. J I S 288703 83 W 4933608 0079357 9 4, Expression of
15、 Standard Atmospheric Conditions The standard atmospheric conditions shall be expressed by the tempera- ture and humidity and the tolerances thereon of the standard atmospheric conditions. The expression of a tolerance may be omitted, where it is not required. Example 1: For the standard atmospheric
16、 conditions of 23% Class 1 temperature and 50 % Class 5 humidity: 23% Class 1 50 % Class 5, 23 I 1% 50 I 5 %, or 23( 1) /50( 5) Example 2: Where the distinction of class is omitted in the case above: 2 3 T 50 %or 23/50 Example 3: For the standard atmospheric conditions of the ordinary temperature (5
17、 to 35%) and the ordinary humidity (45 to 85 %) (*): 20 i 15% 65 I 2 0 %, 20( 15)/65(20) or ordinary temperature, ordinary humidity . Note (*) Where either the ordinary temperature or ordinary humidity alone is to be expressed, Example 3 shall be followed. Remark : The standard atmospheric temperatu
18、re condition shall be expressed by the temperature of the standard atmospheric conditions and the tolerances thereon. The expression of tolerances shall be omitted where it is not required. Example 1: For a standard atmospheric temperature con- dition of 23% Class 1 temperature: 23% Class 1 or 23 I
19、1% Example 2: Where the class is omitted in the case above: 23% Example 3: For a standard atmospheric temperature con- dition of the ordinary temperature (5 to 35%): 20 I 1 5 % , 20(15) or ordinary temperature d , 0 I Z 8703- 1983 Edition 1 Japanese Text Established by Minister of International Trad
20、e and Industry Date of Establishment: 1955-01-31 Date of Revision: 1983-03-01 Date of Public Notice in Official Gazette: Investigated by : 1983-04-07 Japanese Industrial Standards Committee Divisional Council on Basic Items Technical Committee on Standard Atmospheric Conditions for Testing This English translation is published by: Japanese Standards Association Tokyo 107 Japan 0 JSA, 1984 1-24, Akasaka 4, Minato-ku, Rinted i n Tokyo by Hohbunsha & . , U d . -,-,-