Brass Fittings - Lead
Posted: Tue Jun 25, 2013 3:06 pm
I use a brass fitting in my still because I could not for the life of me find a good copper replacement. I tinned the brass a few times around to make sure it was not exposed to the alcohol fumes. However today I did some more reading and found this:
"Brass Fittings and Fixtures Brass is an alloy containing a mixture of metals including copper, zinc, tin, lead, and other metals. Traditionally, faucets and fittings were made from brass because the alloy was durable and easy to cast and machine. Depending on the application, between 1.5% – 9% lead was added to brass alloys to make them easier to machine and to improve the tightness of fittings and connections.
In I998 ANSI introduced new standards to reflect changes in North American plumbing codes that were adopted to reduce the lead content in plumbing fixtures. Today’s, “Lead-Free” brass fittings substitute bismuth and selenium for lead in the alloy mixture but even with today’s standards, brass may contain up to 0.2 % lead as a contaminant from the manufacturing process. Please refer to ANSI/NSF Standard 61, CSA Standard CAN/CSA-B45 or the NRC Plumbing Code- 2005 for additional information."
Source: http://ottawa.ca/en/residents/water-and ... king-water" onclick="window.open(this.href);return false;" rel="nofollow - the quoted section is about half way down the page.
Can anyone expand on this? Does the 0.2% lead in the new brass fitting standards still cause alarm? Any information would be appreciated.
"Brass Fittings and Fixtures Brass is an alloy containing a mixture of metals including copper, zinc, tin, lead, and other metals. Traditionally, faucets and fittings were made from brass because the alloy was durable and easy to cast and machine. Depending on the application, between 1.5% – 9% lead was added to brass alloys to make them easier to machine and to improve the tightness of fittings and connections.
In I998 ANSI introduced new standards to reflect changes in North American plumbing codes that were adopted to reduce the lead content in plumbing fixtures. Today’s, “Lead-Free” brass fittings substitute bismuth and selenium for lead in the alloy mixture but even with today’s standards, brass may contain up to 0.2 % lead as a contaminant from the manufacturing process. Please refer to ANSI/NSF Standard 61, CSA Standard CAN/CSA-B45 or the NRC Plumbing Code- 2005 for additional information."
Source: http://ottawa.ca/en/residents/water-and ... king-water" onclick="window.open(this.href);return false;" rel="nofollow - the quoted section is about half way down the page.
Can anyone expand on this? Does the 0.2% lead in the new brass fitting standards still cause alarm? Any information would be appreciated.