JIS Z 8703 PDF

Find the most up-to-date version of JSA – JIS Z at Engineering JIS Z Standard conditions of the test site. Standard Atmospheric Conditions for Testing 1. This standard application range, the temperature of the . JIS Z Standard atmospheric conditions for testing (FOREIGN STANDARD). standard by Japanese Industrial Standard / Japanese.

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However, supposed that those tests are required to examine the changed behavior of the equipment due to change of the environmental conditions only by temperature and humidity cycle test, it is not possible to identify due to which jus behavior available has been changed, either temperature change or humidity change. However, the test may be carried out by means of the method as specified hereunder: In respect of method of treatment for measurement of performance after the temperature and humidity cycle test, the three conditions as listed hereunder were specified; 1 Water on surface to be dried, 2 8073 sections to be dried, and 3 Surface to be kept as it is, should water in drop be kept attached thereon.

Further, the constant temperature chamber shall be so constructed that the chamber does not zz the heat radiation directly from the heat source of the test specimen. Of load dampings, A-1 and D-1 ate the tests for transient voltages caused by the delayed response in field coil.

JIS Z 8703:1983

This standard is desirable to be applied to motorcycles, if possible, although the environmental conditions of motorcycles are not always the same as four wheelers.

Thus such equipments shall be handled as Class 3 or class 4 equipments. The voltage, however, will be kept at about 18Vwhile the electrolyte remains, The A method is set considering this situation.

In the remark 1 of Table 2 in 3. A power supply device, input device s and loading device s. Main transient voltages on vehicles may be classified as follows: As was the case of A-1 and D-1, the test conditions the test circuit and the constants of its parts are specified based on the test results under the same operating conditions for alternator with A-1 and D Explanatory note on JASOD General rules of environmental testing methods for automotive electronic equipment This explanatory note has been issued for a purpose to explain the matters specified in the text of this standard and any matter relating thereto, which shall not be any part of this standard.


The differences between the JIS C and JIS C are that the former is a test in which mist is continuously sprayed, while the latter is a cycle test in which mist spraying and stopping it are altertively repeated, for the provision for the old JIS Cit was decided to refer the JIS C Because it is not favourable for the voltage from the power supply device to be widely fluctuated due to operation of the equipment during test, the allowable range of such fluctuation has been revised so as to be a little bit severer.

In addition, grounding of whole test devices is necessary in order to the stabilization of reference potential and the safety during tests. The test specimen this moved shall then be tested as it is without any dew being wiped out, in accordance with 5.

Most of the equipments will not cause any trouble with the class 1 test voltage for the normal and cold area specifications, but the class 2 voltage shall be used under the agreement between the persons concerned when the effect of engine frictions, etc.

The test order of setting temperature is not particularly specified.

Keep it for 2 hour or more under room temperature, test it according to 5. This deviation may by increased about 8dB by variation of the test conditions. Typical values of the former are as follows, and constants of parts of the test circuit are specified based on them.

Some examples are given below for reference of temperature setting for these equipment. Although it is desirable that the test apparatus shown in Fig. In addition ,any conditions including but not limited to the visual appearance shall also be verified.


JIS Z – Free download ASME ICC CSA ASTM Codes

For 12V system, two kinds of voltages, 6V class 1 and 5V class 2are selected as the minimum voltage V. Further, measuring accuracy and reproducibility of TEM cell test jiw using the reference sample, that careful consideration is necessary on the following points: This provision shall be executed only in case where it is inevitably required in accordance the agreement between the persons concerned.

Other details of the tests are left to the agreement between parties. In the necessary case, the testing conditions severity of the shock, height of drop, etc. This test, therefore, aims to evaluate the electromagnetic environmental resistance by way of the design standard to protect equipment and to ensure functions of equipment from such troubles. Such devicestherefore, may be excluded from this standard, but it is desirable that the test methods specified in this standard are applied to those equipments.

Particularly, strong electromagnetic fields that occur near radio transmission facilities represented by broadcasting stations, those which generated around the vehicle body by the operation on board radio of transmitter represented by transceiver, and troubles caused by interferences resulted from high frequency voltages, etc.

JIS Z – Standard atmospheric conditions for testing (FOREIGN STANDARD)

Further, the car radio, audio players and TVs may be automotive electric equipments, but they have few necessary to meet a environmental immunity as in the case of control electronic equipments. Confirm the appearance, etc. However, voltages that are induced and impressed by transient voltages and electro-magnetic disturbances are not included.