| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| warren | "Awesome @zengirl2 @gretchengehrke " | Read more » | over 6 years ago | |||
| ErikHanley11 | "Thank you, @Zengirl2! " | Read more » | over 6 years ago | |||
| ErikHanley11 | "@Zengirl2 Absolutely! We did this testing at Deer Island Sewage Treatment Plant, which is the Boston metropolitan area's sewage treatment plant. Th..." | Read more » | over 6 years ago | |||
| stevie | "@stevie awards a barnstar to ErikHanley11 for their awesome contribution! " | Read more » | over 6 years ago | |||
| stevie | "@sharon-wilson check out this time lapse photography of the copper rod corrosion monitoring from @ErikHanley https://publiclab.org/notes/ErikHanley..." | Read more » | over 6 years ago | |||
| stevie | "@stevie awards a barnstar to ErikHanley11 for their awesome contribution! " | Read more » | over 6 years ago | |||
| warren | "@warren awards a barnstar to ErikHanley11 for their awesome contribution! " | Read more » | over 6 years ago | |||
| zengirl2 | "These pics are the best--would love to hear more about the site you chose and whether it was difficult to get permission for its use. Thanks again! " | Read more » | over 6 years ago | |||
| zengirl2 | "Wow these are great--ty so much for taking the time to document this! " | Read more » | over 6 years ago | |||
| gretchengehrke | "@warren, I thought the sandpaper we used (that was like a polisher) worked well to remove grime on the surface of the copper, which is its purpose...." | Read more » | almost 7 years ago | |||
| warren | "And do you have to discard the sandpaper on each use, or can it be used over and over? Thanks! " | Read more » | almost 7 years ago | |||
| warren | "Hi, i saw you mentioned: it’s almost more like a polisher regarding the sandpaper -- was that a bad thing? Would you opt for a different grade of..." | Read more » | almost 7 years ago | |||
| warren | "Just linking in here to the question where some of us have been looking for different materials and setups to do this test with: https://publiclab..." | Read more » | almost 7 years ago | |||
| warren | "Hi, gretchen - the photos are great. Do you have a list of Amazon links and prices you could add -- as a step in getting a prototyping kit together..." | Read more » | almost 7 years ago | |||
| gretchengehrke | "Here are before and after photos. We did not expect (and did not observe) any discoloration since we were only putting them out for less than 24 ho..." | Read more » | almost 7 years ago | |||
| gretchengehrke | "Here is a picture after sanding one of the little copper strips. The green pad is actually soft sandpaper / polishing paper. " | Read more » | almost 7 years ago | |||
| gretchengehrke | "Here is a picture of cutting the copper sheet into strips. " | Read more » | almost 7 years ago | |||
| gretchengehrke | "Hi @warren, Thanks for the reminder to add pictures. I have tried inserting photos a few times today, but it keeps crashing the edit (and, seemingl..." | Read more » | almost 7 years ago | |||
| warren | "And if there are any photos of these steps, i'd love to help make diagrams to illustrate the process! " | Read more » | almost 7 years ago | |||
| warren | "Hi! Do you have photos you can attach for what the copper should look like before/after H2S exposure? Or after any possible false positives? " | Read more » | almost 7 years ago | |||
| zengirl2 | "@gretchengehrke OK, ty for the response. Sounds like I need to check manufacturers about the copper tape to see how pure it is. Also, I was thinkin..." | Read more » | almost 7 years ago | |||
| gretchengehrke | "Hi @Zengirl2, I'm not sure about the copper strips. Whatever copper is used needs to be fairly pure, and I'm not sure if the copper tape is pure c..." | Read more » | almost 7 years ago | |||
| zengirl2 | "@gretchengehrke Do you know if copper tape can be used? I'm considering giving testers out at the Factory Farm Summit mounted on cardboard. Also, s..." | Read more » | about 7 years ago | |||
| warren | "Wow, so is the attached picture a positive identification of H2S? What does a negative test look like? Do you have any photos of hanging it over a..." | Read more » | over 12 years ago |