 |
|||
|
Page Title:
Appendix Instructions for Hand Mixing Thickened Fuels |
|
||
| ||||||||||
|
|  WITH M4 THICKENER
10. SCOPE
mix. If 2-ethylhexoic acid is not available,
cresylic acid, commercial phenols or cresols,
10.1 This appendix covers the instructions
or alcohols may be used, but these substances
to be included in containers of M4 thickener,
have a tendency to break down the gels,
as specified in the preparation for delivery
especially at low thickener concentrations.
requirements.
2 . MIXING PROCEDURE. The most
widely used hand-mixing method is in open-
20. APPLICABLE DOCUMENTS
end steel drums. A wood paddle is used to
stir the gasoline while thickener is being
20.1 The following specification of the issue
added. The basic batch is 20 gallons, and
in effect on date of invitation for bids forms
t h e thickener and peptizer requirements
a part of this appendix:
given in the table are for this quantity of
FEDERAL
gasoline, Procedure for this method is as
follows :
UU-P-121 -- Paper, Bond and Writing,
White.
(a) Above 40F.
30. REQUIREMENTS
(1) Measure gasoline and pour into
open-top steel drums or other
30.1 General. The instructions shall be
containers.
printed in black printer's ink on yellow or
( 2 ) Stir while adding thickener
w h i t e paper conforming to Specification
(see tables for amounts).
U U - P - 1 2 1 . Each page shall measure ap-
proximately 51 by 8 inches.
(3) Continue stirring for about 5
minutes after all the thick-
30.2 Instructions. The following informa-
ener has been added.
tion shall appear in the instructions:
( 4 ) Stir for 1 minute every 20
INTERIM INSTRUCTIONS FOR HAND MIX-
minutes until a suitable gel
I N G O F TH I C K E N E D F U E L S W I T H
is formed, A good gel can
THICKENER, M4
be expected in 1 or 2 hours.
The gel will improve if al-
1. GENERAL. Thickened fuel consists of
lowed to set 2 or more hours.
gasoline mixed with a thickener to form a
gel. In general the thicker the gel the more
(b)
slowly it burns. A third ingredient called a
( 1 ) Same procedures as in step
peptizer is used to accelerate the formation
(1) above.
of the gel at low temperature.
(2) Add peptizer and stir for o n e
Peptizer. The recommended peptizer, 2-
minute.
ethylhexoic acid, will accelerate gel forma-
tion at temperatures below 40F.; however,
(3) Steps (2) and (3) above.
use of a peptizer tends to cause the produc-
(4) Stir for one minute every 20
tion of thinner fuel and it is usually neces-
minutes until a suitable gel
sary to increase the thickener content of the
9
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals