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NASA-LLIS-0260
Lessons Learned - Stainless Steel Tubing Residue
Year: 1993
Abstract: Description of Driving Event:
Possible residue build-up in stainless steel tubing, as obtained from the supplier, could cause a blockage in the line. All stainless steel tubing should be inspected for cleanliness prior to use and should be cleaned according to the following procedure for general R&D applications:
1. Blow down with dry air to remove majority of particles.
2. Pass solvent-rinsed, lint-free swab through tubing to dislodge additional particles.
3. Flush tubing with fresh solvent for about 15 seconds. Follow with another dry air blow down.
4. Conduct cursory, visual examination of each cleaned tube to assure that all visible particles are removed.
5. Install tight-fitting, clean, plastic caps on each tubing end.
6. Fasten tag on each tubing section to identify that a cleaning process has been accomplished.
Note: This procedure will not provide adequate cleanliness for sensitive pneumatic/hydraulic applications, oxidizing propellant service, or flight hardware applications.
Possible residue build-up in stainless steel tubing, as obtained from the supplier, could cause a blockage in the line. All stainless steel tubing should be inspected for cleanliness prior to use and should be cleaned according to the following procedure for general R&D applications:
1. Blow down with dry air to remove majority of particles.
2. Pass solvent-rinsed, lint-free swab through tubing to dislodge additional particles.
3. Flush tubing with fresh solvent for about 15 seconds. Follow with another dry air blow down.
4. Conduct cursory, visual examination of each cleaned tube to assure that all visible particles are removed.
5. Install tight-fitting, clean, plastic caps on each tubing end.
6. Fasten tag on each tubing section to identify that a cleaning process has been accomplished.
Note: This procedure will not provide adequate cleanliness for sensitive pneumatic/hydraulic applications, oxidizing propellant service, or flight hardware applications.
Subject: Flight Equipment
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T18:07:48Z | |
| date available | 2017-09-04T18:07:48Z | |
| date copyright | 09/03/1993 | |
| date issued | 1993 | |
| identifier other | GPZCQCAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std;jsery=autho162s7D8308/handle/yse/190755 | |
| description abstract | Description of Driving Event: Possible residue build-up in stainless steel tubing, as obtained from the supplier, could cause a blockage in the line. All stainless steel tubing should be inspected for cleanliness prior to use and should be cleaned according to the following procedure for general R&D applications: 1. Blow down with dry air to remove majority of particles. 2. Pass solvent-rinsed, lint-free swab through tubing to dislodge additional particles. 3. Flush tubing with fresh solvent for about 15 seconds. Follow with another dry air blow down. 4. Conduct cursory, visual examination of each cleaned tube to assure that all visible particles are removed. 5. Install tight-fitting, clean, plastic caps on each tubing end. 6. Fasten tag on each tubing section to identify that a cleaning process has been accomplished. Note: This procedure will not provide adequate cleanliness for sensitive pneumatic/hydraulic applications, oxidizing propellant service, or flight hardware applications. | |
| language | English | |
| title | NASA-LLIS-0260 | num |
| title | Lessons Learned - Stainless Steel Tubing Residue | en |
| type | standard | |
| page | 2 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1993 | |
| contenttype | fulltext | |
| subject keywords | Flight Equipment | |
| subject keywords | Ground Equipment | |
| subject keywords | Industrial Operations | |
| subject keywords | Parts Materials & Processes |