MIL-STD-202H.pdf - 第55页
MI L - S TD - 202 - 10 8 5. DETAILED REQUI RE M E N T S 5.1 Summary . The fol l ow i ng det ai l s ar e t o be s p ec i f i ed i n t h e i nd i v i dua l s pec i f i c at i on: a. Distance of t e m pe r at ur e m eas ur …
MIL-STD-202-108
4.2.2 Test temperature. Specimens shall be subjected to one of the following test temperatures with
accompanying tolerances, as specified:
Temperature and tolerance 1/
°C
70 ±2
85 ±2
100 ±2
125 ±3
150 ±3
200 ±5
350 (± as specified)
500 (± as specified)
°F
158 ±3.6
185 ±3.6
212 ±3.6
257 ±5.4
302 ±5.4
392 ±9
662 (± as specified)
932 (± as specified)
1/ For tests on resistors only, in a still-air environment, the
maximum temperature tolerance shall be ±5°C (±9°F).
4.2.3 Operating conditions. The test potential, duty cycle, load, and other operating conditions, as applicable,
applied to the specimen during exposure shall be as specified.
4.2.4 Length of test. Specimens shall be subjected to one of the following test conditions, as specified:
Test condition Length of test, hours
A ------------------- 96
B ------------------- 250
C ------------------- 500
D ------------------- 1,000
F ------------------- 2,000
G ------------------- 3,000
H ------------------- 5,000
I ------------------- 10,000
J ------------------- 30,000
K ------------------- 50,000
NOTE: Test condition E (1,500 hour test) has been deleted from this test method.
4.3 Measurements. Specified measurements shall be made prior to, during, or after exposure, as specified. If
applicable, frequency of measurements, and portion of the duty cycle in which measurements are to be made, while
the specimen is subjected to test, shall be as specified.
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MIL-STD-202-108
5. DETAILED REQUIREMENTS
5.1 Summary. The following details are to be specified in the individual specification:
a. Distance of temperature measurements from specimens, in inches (see 4.1).
b. Still-air requirement, when applicable (see 4.1).
c. Method of mounting and distance between specimens, if required (see 4.2.1).
d. Test temperature and tolerance (see 4.2.2).
e. Operating conditions (see 4.2.3).
f. Test condition letter (see 4.2.4).
g. Measurements (see 4.3).
(1) Prior to, during, or after exposure (see 4.3).
(2) Frequency of measurements, and portion of duty cycle during test, if applicable (see 4.3).
6. NOTES
(This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.)
6.1 Supersession data. The main body and 38 parts of this revision of MIL-STD-202 replace superseded MIL-STD-
202.
Custodians: Preparing activity:
Army - CR DLA – CC
Navy - EC
Air Force - 85 (Project 59GP-2015-012)
DLA - CC
Review activities:
Army - AR, AT, AV, CR4, MI, SM, TE
Navy - AS, OS, SH
Air Force - 19, 99
NSA - NS
NOTE: The activities listed above were interested in this document as of the date of this document. Since
organizations and responsibilities can change, you should verify the currency of the information above using the
ASSIST Online database at https://assist.dla.mil/
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INCH-POUND
MIL-STD-202-109
18 April 2015
SUPERSEDING
MIL-STD-202G
w/CHANGE 2 (IN PART)
28 June 2013
(see 6.1)
DEPARTMENT OF DEFENSE
TEST METHOD STANDARD
METHOD 109, EXPLOSION
AMSC N/A FSC 59GP
北测（上海）电子科技有限公司
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