MIL-DTL-46162E
APPENDIX A
A.6.8 Add three drops of diphenylamine solution to the center of the disc and observe
whether a blue or blue-black color forms.
A.7. REPORTS (Reports if required will be specified in the contract or work order).
A.7.1 The presence of organic nitrate ester-type cetane improvers will be recorded if the
formation of a blue color occurs. Reference samples of diesel fuels containing 0.5 percent (%)
by volume of anyone of the approved cetane improvers (see 3.2.1.1.2) give an intense blue to
blue-black color throughout the reagent spot whereas those samples containing only 0.1 % by
volume produce a blue ring at the outer boundary of the reagent. If a positive reaction occurs
(i.e., a blue or blue-black coloration), the carbon residue determination (ASTM D524) must be
performed on a neat or base-fuel blend.
19
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business