MIL–STD–750–1
w/CHANGE 4
SUMMARY OF CHANGE 4 MODIFICATIONS
1. Test method 1018, paragraph 3, was revised to institute a standard procedure for dealing with package
volume discrepancies.
2. Test method 1018, paragraph 4, was revised to clarify the requirements for attaining suitability.
3. Test method 1020, table 1020-I, was revised to add a step to the simulator charging table.
4. Test method 1020, table 1020-III, was added to correctly define class 0 classification.
5. Test method 1051, paragraph 1.1.6, was revised to correct the definition of ramp rate.
6. Test method 1051, paragraph 1.1.11, was revised to clarify the worst case load temperature requirements.
7. Test method 1051, table 1051-I, was revised to correct load the load temperature tolerance requirements.
8. Test method 1071, paragraph 2.1, was revised to redefine the definition of standard leak rate.
9. Test method 1071, paragraph 2.2, was revised to redefine the definition of equivalent standard leak rate.
10. Test method 1071, paragraph 2.3, was revised to redefine the definition of measured leak rate.
11. Test method 1071, paragraph 2.5, was revised to redefine the krypton to air conversion factor.
12. Test method 1071, paragraph 2.7, was revised to clarify testing limitations.
13. Test method 1071, paragraph 2.8, was revised to clarify the defition of internal free cavity volume.
14. Test method 1071, paragraph 4.1, was revised to clairify the use of the red dye penetrant solution efficiency
procedure.
15. Test method 1071, paragraph 4.2, was revised to clarify step 2 of the test procedure.
16. Test method 1071, paragraph 4.3, was revised to clarify step 6 of the getter efficiency procedure.
17. Test method 1071, paragraph 5.1, was revised to add apparatus requirements.
18. Test method 1071, paragraph 5.2, was revised to correct the re-test pressurization time requirement.
19. Test method 1071, paragraph 9.5, was revised to clarify the counting station functional verification
requirements.
20. Test method 1071, paragraph 9.5.2, was revised to clarify the documentation requirements.
21. Test method 1071, paragraph 9.6.5, was revised to clarify that the condition results are not quantitative.
22. Test method 1071, paragraph 10, was revised to require result conversion to determine acceptability.
23. Test method 1071, paragraph 10.1, was revised to clarify the calibration documentation requirements.
24. Test method 1071, paragraph 10.2, was revised to require flexible methods by default.
25. Test method 1071, paragraph 10.2.1, was revised to clarify the surface sorption documentation
requirements.
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