1、rMIL-H-i3895B (I) 73 9999906 O242220 I MIL-H-43895B AMENDMENT- 1 21 March 1988 MILITARY SPECIFICATION HEATERS, HOT WATER BOOSTER, ELECTRIC; SINK, SANITIZING This amendment forms a part of Military Specification MIL-H-43895BY dated 24 June 1986, and is approved for use by all Departments and Agencies
2、 of the Department of Defense. PAGE 2 2.1, under “STANDARDS MILITARY“: “MIL-STD-167/1 Add the following: - Mechanical Vibration of Shipboard Equipment (Type I - Environmental and Type II - Internally Excited). MIL-STD-461 - Electromagnetic Emission and Susceptibility Requirements for the Control of
3、Electromagnetic Interference. MIL-STD-462 - Electromagnetic Interference Characteristics, Measurement of MIL-STD-1472 - Human Engineering Design Criteria for Military Systems, Equipment and Facilities.“ PAGE 3 Add the following new paragraph: “3.1.1 Human factors criteria (for Navy use only). Human
4、factors engineering criteria, principles and practices, as defined in MIL-STD-1472, shall be incorporated into the design of the hot water booster heaters. equipment shall be designed such that all maintenance and operational tasks shall permit safe and efficient performance by the 5th percentile fe
5、male through the 95th percentile male as defined in MIL-STD-1472. Particular attention shall be given to the ease of access for the removal and replacement of the heating elements. All controls, valves, gauges, and indicator lights shall be selected and integrated into the design of the heaters so a
6、s to meet the application requirements of MIL-STD-1472 and be clearly and appropriately labeled to identify function. Warning plates, where specified, shall have a white inscription on a red background and shall clearly identify the hazard at hand. The clearance or free area required around an item
7、shall permit an individual with the applicable 5th to 95th percentile body dimensions and physical capabilities as defined in MIL-STD-1472, to safely operate, maintain, remove or replace that item. When establishing accessibility requirements, both physical arid visual access must be provided, along
8、 with access for any The AMSC N/A FSC 7320 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-!I3895B (1) 73 9999906 0242221 3 W MIL-H-43895B Amendment-1 PAGE 3 (con
9、td) tools, test equipment needed and parts replacement. While inspecting for defects and performing tests, the equipment shall adhere to the human factors engineering considerations listed herein.“ 3.4, line 10, after “long,“: Add “8“. PAGE 5 3.4.3.3.1, line 2: Delete “yellow“ and substitute “green“
10、. PAGE 7 Add the following new paragraphs: “3.9 Environmental suitability. When specified for shipboard use (see 6.21, hot water booster heaters shall be capable of withstanding ships vibration and motion. Controls, switches, moving parts and electrical circuits shall operate under shipboard conditi
11、ons without malfunction, binding, excessive looseness, or damage when tested as specified in 4.4.2. 3.10 Electromagnetic compatibility. When specified (see 6.21, the units shall be designed and equipped for electromagnetic compatibility in accordance with the requirements of MIL-STD-461, class A4 fo
12、r surface ships and class A5 for submarines. for CEO1, CE03, and RE02. (see 4.4.31.“ The equipment shall meet the emission and susceptibility requirements PAGE 9 4.2.4, line 1, after “4.4.1“: Add I, and when required for shipboard use, 4.4.2 and 4.4.3.“ line 5, after “4.4.1“: Add I, and when applica
13、ble, 4.4.2 and 4.4.3“. 4.4.1, last line on the page: Delete “yellow“ and substitute “green“. PAGE 11 Add the following new paragraphs: “4.4.2 Shipboard environmental tests. water booster heaters for shipboard use. or at the conclusion of the tests, or evidence of breakage or excessive looseness of p
14、arts shall constitute failure of the test. The following tests are required for hot Failure to operate satisfactorily during a. Inclined test. The hot water booster heater shall be attached to a sink and shall-be operated with the sink inclined at an angle of 15 degrees each side of the vertical in
15、each of two vertical planes at right angles to each other. The sink shall be filled and heater energized to heat water to a minimum of 180OF. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-4395B (1) 73 W 9977906 02Y2222 5 = MIL-H-43895B Amen
16、dment-1 PAGE 11 (contd) The heater shall be operated for 30 minutes in each inclined direction. temperature shall be monitored to determine conformance to the requirements of 3.4.3.5. The sink and waste collector reservoir shall then be drained. The waste reservoir discharge valve, operating handle,
17、 indicator lights and empty reservoir cutout shall be checked for proper operation and conformance to 3.4.2.1, 3.4.3.2.1, and 3.4.3.3.1. Observations shall be made to determine conformance with leak tightness requirements of 3.4. Failure to meet these requirements shall constitute failure of the tes
18、t. The b. Vibration test. The hot water booster heater shall be attached to a sink in accordance with manufacturers instructions. The sink shall be filled with water and the heater, under normal operating conditions, shall be tested in accordance with requirements for MIL-STD-167/1, type I equipment
19、. Failure of the heater to perform its function during and after testing shall constitute failure of this test. 4.4.3 Electromagnetic interference tests. When required for shipboard use, the unit shall be tested by the contractor in accordance with test methods CEO1, CE03 and RE02 of MIL-STD-462. th
20、e equipment meets MIL-STD-461 requirements. specified shall constitute failure of this test.“ The contractor shall furnish written certification that Nonconformance with requirements 6.2d Delete “and 3.7“ and substitute I, 3.7, 3.9 and 3.10“. Custodians: Preparing activity: Army - GL Navy - YD Air Force - 99 Army - GL Project No. 7320-0839 Review activities: Army - MD, TS Navy - SA, SH Air Force - 84 DLA - GS 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
