Ask Monica
Joined: Jul 2001
Posts: 59,364
Likes: 1,614
From: La Crescenta, CA
Originally Posted by S2000Patrick' date='Jan 4 2009, 01:08 PM
The concentration and solubility of hexavalent chromium depended on the type of welding. Several studies showed that the total chromium concentration in welding fumes was higher in gas metal arc welding (GMAW) than in shielded metal arc welding (SMAW) but hexavalent chromium concentrations were higher in SMAW than in GMAW. Most chromium species in GMAW exist as insoluble trivalent or elemental chromium.
...or maybe not.
...or maybe not.
Registered User
Joined: Jul 2004
Posts: 7,514
Likes: 0
From: SoCal
Originally Posted by The Raptor' date='Jan 4 2009, 01:10 PM
That's nice, Patrick, but the hexavalent chromiun STLC is five parts per million. It has to do with groundwater contamination risk.
Joined: Jul 2001
Posts: 59,364
Likes: 1,614
From: La Crescenta, CA
Originally Posted by S2000Patrick' date='Jan 4 2009, 01:17 PM
Very well thank you, slightly odd because its the first one without my mother, but we kept my dad busy, I think he handled it well.
How where the holidays with you?
How where the holidays with you?
Registered User
Joined: Jul 2004
Posts: 7,514
Likes: 0
From: SoCal
Originally Posted by The Raptor' date='Jan 4 2009, 01:21 PM
Terrible. Mrs. Raptor was sick in bed with the flu for almost two weeks. No Christmas dinner. Cancelled family coming over and spending the night on Christmas. Mrs. R couldn't go to the Rose Bowl. We finally opened presents yesterday.
(It was a great Rose Bowl too.
)
Joined: Jul 2001
Posts: 59,364
Likes: 1,614
From: La Crescenta, CA
Originally Posted by S2000Patrick' date='Jan 4 2009, 01:23 PM
Sorry to hear. How is she doing now?
(It was a great Rose Bowl too.)
(It was a great Rose Bowl too.
)
Registered User
Joined: Oct 2008
Posts: 2,781
Likes: 1
From: So Cal
thankyou monica for making it snow, the weather people said no and now there are two inches of powder on the ground and it is still coming down hard.... thanks again, more scooby fun before heading back to sunny CA next week
