NAVY MIL-S-6904 B (1)-1969 SIGNALS EMERGENCY WARNING GENERAL SPECIFICATION FOR《紧急警报信号一般规格》.pdf

1、S-cq-4 MIL-S-690B (2) 63 W 9999906 O236833 O W MIL- S-6 904 B AMENDMENT-1 3 December 1969 MILITARY SPECIFICATION SIGNALS, EMERGENCY WARNING, GENERAL SPECIFICATION FOR This amendment forms a part of MXitary Specification MIL-S-6904B, dated 19 April 1965, and is mandatory for use by all Departments an

2、d Agencies of the Department of Defense. Page 7, paragraph 4.4.2.1: Delete, and substitute the following: 114. 4.2.1 Sampling plan A - A sample from each lot shall be selected in accordance with MIL-STD-105, Special Inspection Level 5.2, acceptanc,e number zero, and subjected to the following tests:

3、 (a) Temperature rise (see 4.6.3) (b) Low-voltage operation (see 4.6.4) (c) Dielectric strength (see 4.6.5) (d) Current consumption (see 4.6.6) (e) Sound intensity (see 4.6.7) (f) Endurance (see 4.6.8) (g) Sound frequency (see 4.6. 9)11 Page 7, paragraph 4.4.2 . 2: Delete in its entirety. Page 9, pa

4、ragraph 4.6.11.7: Delete, and substitute the following: l4.6. 11.7 Vibration - The signal assembly shall be subjected to a vibration best in accordance with Procedure XII except that (1) the vibration amplitude (total excursion) shall be .O60 inch, (2) the vibration frequency Cntinually varying betw

5、een 10 and 55 cps and (3) the signai shall be operated at intervals during the test. Upon the completion of the test the signal shall operate satisfactorily. It shall not operate inadvertently. FSC 63401 Licensed by Information Handling ServicesMIL-S-b904B (1) 63 7777906 0236832 2 MIL-S-6904B Custodians- Amy - AV Navy -AS Air Force - 82 Preparing Activity. Navy - AS (Project No. 6340-0054) Review Activities: Army - AV Navy -AS Air Force - 82, 11 User Activities : Army - Navy -CG Air Force - Page 2 of 2 pages . -. I Licensed by Information Handling Services