 |
|||
|
Page Title:
Alternate method for cured PBXN-103 ingredient analysis |
|
||
| ||||||||||
|
|  MIL-E-82756(OS)
extraction (4.6.1.6) as the portion of residue material soluble in DMF.
ΒĆ
Ξ 100
Περχενταγ ε οφ šελετιζεδ νιτροχελυλ σ
λ
λ οε
Ω
where:
B = Weight of residue from thimble 4.6.1.6 in grams
D = Weight of aluminum from 4.6.1.6 in grams
W = Weight of sample from 4.6.1.1 in grams
4.6.2 Alternate method for cured PBXN-103 ingredient analysis. Cut the sample from 4.5.2 into
small pieces no larger than 2 mm square. Weigh a 5-gram sample of small pieces to the accuracy of 0.1
mg in an extraction thimble (22 mm X 80 mm).
4.6.2.1 Mixed plasticizer. Extract the mixed plasticizer with 250 mL of methylene chloride in a
soxhlet extraction apparatus for 6 hours. Place the thimble in a beaker, and allow it to air dry. Weigh the
thimble plus the residue.
(Α Β Χ)
Ξ 100
Περχεντ ιξεδ šλ σ ιχιζερ
ατ
Α
where:
A = Weight of sample in grams
B = Weight of thimble in grams
C = Weight of thimble plus residue in grams.
4.6.2.2 PNC. Place the residue from the thimble together with a stirring rod in a tared medium
porosity crucible. Place the crucible with the residue in a 250-mL beaker, and add 150 mL of isobutyl
acetate. Let the solution stand for 1 hour. Place the beaker on a hot plate, and heat it to just below boiling
(110C) until it does not appear sticky, stirring the residue in the crucible periodically. Extract the PNC
using the tared crucible on a vacuum filtrator. Wash the residue in the crucible twice with 15 mL of hot
isobutyl acetate. Dry the crucible and residue in a 100 5C oven for 15 minutes, and cool it to room
temperature. Weigh the crucible plus second residue.
(Ć Ε)
Περχεντ šελετιζεδ νιτροχελυλ σ
λ
λ οε
Ξ 100
Α
where:
D = Weight of crucible and rod plus residue of 4.6.2.1 in grams
E = Weight of crucible and rod plus second residue in grams
A = Weight of sample in grams
4.6.2.3 AP and aluminum. Extract the remaining residue with five 20-mL portions of hot distilled
10
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals