Hi Friends:
I received 50 responses about filling N2. I would like to thank you for your kind help. The following is the summary:
(1) What kind of tubing you use to fill N2?
Latex tubing. 46%
Braided line (some use tubing at the magnet end). 33%
Others: 21%
(2) How often do you change the tubing?
Whenever it would crack & start to leak. 75%
One-three years. 19%
Others: 6%
(3) Do you have secondary tubing protection? What is that?
Foam tubing. 10%
No secondary protection. 90%
(4) What kind of personal protection equipment you use when you fill liquid N2?
Use some of the following PPE: Safety glasses, cryogloves, long sleeves, fully enclosed shoes, face shield, non-wetting lab coat. 96%
No PPE. 4%
________________________________
Zhe Zhou, Ph.D.
Research Specialist (NMR)
Molecular Structure Group
Analytical Sciences, Dow Chemical Company
2301 N. Brazosport Blvd., B-1219
Freeport, TX 77541
Tel: 979-238-1387
Fax: 979-238-0752
Email: zzhou_at_dow.com
Received on Mon May 19 2003 - 07:31:11 MST