MIL-STD-1330D(SH) APPENDIX E
w/ Change 1
TABLE E-I. NAVSEA approved halogenated solvents. Continued.
Attribute |
Approved halogenated solvents 1/ |
|||
CFC-113 2/ |
HCFC-141b 3/ |
HCFC-225 4/ |
HFE-7100 5/ |
|
Ozone depleting substance |
Yes |
Yes |
Yes |
No |
Ozone depletion potential |
0.8 |
0.11 |
0.03 |
0.0 |
Production phase-out |
1996 |
2003 |
2015 |
NA |
Process verification methods 1. Infrared spectrophotometry 2. NVR 3. SQM |
Yes Yes Yes |
No Yes Yes |
No Yes Yes |
No Yes Yes |
Non-metallic compatibility 7/ 1. PTFE (Teflon) 2. PCTFE (Kel-F) 3. Vespel SP-21 4. Viton 5. Silicone |
8/ C C C 12L I |
8/ C C C 1L 12L |
8/ C C C 1L I |
8/ C C C 1L I |
NOTES: 1/ HFE-7100 is the preferred solvent for cleaning gages and instruments. HCFC-225 is the preferred solvent for cleaning oxygen-nitrogen producers. 2/ For naval activities, the use of CFC-113 is restricted to those authorized by NAVSEA to access the mission critical reserve maintained by the Defense Logistics Agency or reserves maintained by Naval Shipyards. Refer to Navy ODS Advisories 95-01 and 96-01 for additional information. CFC-113 procured for gauge cleaning shall be equivalent to MIL-C-81302, Type I. CFC-113 procured for oxygen-nitrogen producer cleaning and field wipe shall be equivalent to MIL-C-81302, Type I or II. Recycled CFC-113 shall be equivalent to MIL-C-81302, Type I, with the following exceptions: moisture content shall be 35 ppm maximum; organic cleanliness shall be less than 5 ppm determined as specified in 5.13.2; and particulate cleanliness shall be as specified in 5.13.3.2. 3/ Domestic availability of HCFC-141b is extremely limited based on the production phase-out, and there is no mission critical reserve. If available, HCFC-141b in accordance with A-A-50427 can be used for cleaning gauges and oxygen-nitrogen producers. To comply with environmental regulations, and since approved alternatives exist, HCFC-141b should not be used for field wipe. Be advised that HCFC-141b is reported to have upper and lower explosion limits of 17.7 and 7.6 percent, respectively. When purging or drying equipment cleaned with HCFC-141b, ensure purging is performed with nitrogen and is directed to a well ventilated area free of any ignition sources. Recognize that HCFC-141b at the lower explosive level is toxic representing an immediate hazard to life. HCFC-141b in accordance with A-A-50427 has been satisfactory tested for compatibility with gaseous and liquid oxygen demonstrating no ignition or flash point. 4/ HCFC-225 in accordance with A-A-59743 has been satisfactory tested for compatibility with gaseous and liquid oxygen demonstrating no ignition or flash points, and is available as either HCFC-225G or HCFC- 225M. The recommended 8-hour time weighted average exposure for HCFC-225G is 400 ppm and for HCFC-225M is 100 ppm. The recommended short term (30-minute) exposure limit for HCFC-225G is 900 ppm and for HCFC-225M is 180 ppm. HCFC-225G in accordance with A-A-59743 is approved for cleaning gauges, oxygen-nitrogen producers and for field wipe. HCFC-225M in accordance with A-A-59743 is approved for oxygen-nitrogen producers when appropriate ventilation and other engineering controls can minimize personnel exposure. HCFC-225M in accordance with A-A-59743 should not be used shipboard, for gauges or for field wipe because of the low allowable exposure limit. |
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