High Tin on icp test

fishkeeprian · 11/11/2020, 03:26 PM

Hello I've got super high tin reading on my icp test. No other metals. The reading is Tin 148 µg/l, where would this be coming from? I cant see anything obvious, thanks.

Autonomy · 11/20/2020, 08:33 AM

I was having the same problem a while back and after much research, I came across fellow reefers informing me that it was coming from my PVC pipes/plumbing.

Apparently, it has to do with the way extruded tubing, such as PVC pipes, are manufactured. It might help for you to research further into extrusion coating and the like. Tin stabilizers play an important part in the production of PVC due to the high heat and stress imposed on PVC products during manufacturing.

Although the following link:
https://www.uni-bell.org/Portals/0/R...r-pvc-pipe.pdf
states that no organotin (Tin) stabilizers are a health concern for PVC pipe used in drinking water systems and how there are health regulations regarding chemicals migrating from products that come into contact with potable water, however, there is no mention of PVC and its possible effects when dealing with saltwater.

11/11/2020, 03:26 PM	#1
fishkeeprian Registered Member Join Date: Feb 2016 Location: England, Earl Shilton Posts: 1,452	High Tin on icp test Hello I've got super high tin reading on my icp test. No other metals. The reading is Tin 148 µg/l, where would this be coming from? I cant see anything obvious, thanks. __________________ If in doubt ask!

11/20/2020, 08:33 AM	#2
Autonomy Registered Member Join Date: May 2013 Location: Australia - Sydney Posts: 32	I was having the same problem a while back and after much research, I came across fellow reefers informing me that it was coming from my PVC pipes/plumbing. Apparently, it has to do with the way extruded tubing, such as PVC pipes, are manufactured. It might help for you to research further into extrusion coating and the like. Tin stabilizers play an important part in the production of PVC due to the high heat and stress imposed on PVC products during manufacturing. Although the following link: https://www.uni-bell.org/Portals/0/R...r-pvc-pipe.pdf states that no organotin (Tin) stabilizers are a health concern for PVC pipe used in drinking water systems and how there are health regulations regarding chemicals migrating from products that come into contact with potable water, however, there is no mention of PVC and its possible effects when dealing with saltwater.