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|  MIL-E-82756(OS)
TABLE I. PBXN-103 formulation.
Ingredient
Percent by Weight
Specification
Theoretical
Minimum
Maximum
Pelletized nitrocellulose
6.0
6.0
7.5
WS 12799, Grade A,
(PNC) (percentage as
Type I or II, Classes 2
nitrocellulose)1
or 3, 1-30 second
viscosity
Ammonium perchlorate (AP)
40.0
38.0
42.0
WS 18485, WS 12794,
MIL-A-192, Grade C,
Class 4, or WS 12236,
Class 1
Aluminum
27.0
25.0
29.0
MIL-A-82728
Mixed Plasticizer
Resorcinol
0.2
0.2
0.4
MIL-R-22578
MTN
23.0
21.0
25.0
WS 12798
TEGDN
2.5
2.0
3.0
WS 12797
EC1
1.3
1.3
1.7
MIL-E-255, Class 3
1
WS 12799, Pelletized Nitrocellulose will contain EC. The amount of PNC used must account for the
fact that part of it is EC. The composition limits are a minimum of 6.0 and a maximum of 7.5 percent
nitrocellulose. The EC percentage in the mixed plasticizer must be adjusted (reduced) by the amount
added with the PNC.
3.3.2 Tensile strength. Tensile strength shall be determined using either a cut or cast sample of
PBXN-103. Tensile strength of a cut sample of PBXN-103 shall be greater than 60 pounds per square inch
(psi) when determined as specified in 4.6.5.1. Tensile strength of a cast sample of PBXN-103 shall be
greater than 90 psi when determined as specified in 4.6.5.2. Strain at maximum stress for cut and cast
samples shall not be less than 9 percent.
3.3.3 Vacuum stability. The PBXN-103 vacuum stability shall not exceed 1.00 mL/g in 40 hours at
100C when tested in accordance with 4.6.6.
3.4 Workmanship. The PBXN-103 explosive shall be free from foreign materials and shall be
manufactured in a manner to assure compliance with all the requirements of this specification. The
workmanship exhibited in the first article sample shall be evaluated to determine acceptability. The
approved standards of workmanship will thereby become a minimum requirement for all material offered
for acceptance.
4. QUALITY ASSURANCE PROVISIONS
4
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