canary-database
canary-database


Author Comment Last activity Moderation
imdad "This is Very Informative Information About This is Very informative Information About Electrical Energy Definition " | Read more » almost 3 years ago
imdad "This is Very Informative Information About This is Very informative Information About Electrical Energy Definition " | Read more » almost 3 years ago
hannanahmad "Your points make sense, but still there are only a few building management systems that can comply with old HVAC equipment. Timing of pumps can be ..." | Read more » almost 3 years ago
nshapiro "Hi @indy if you're based in Indiana, as your name hints, you can report your symptoms to the stat DOH and they might come out and test for free. In..." | Read more » about 5 years ago
Indy "Hi, my search for formaldehyde testing brought me to this article. I'm wondering if you could help me with some advice - I'd appreciate it. I'm ve..." | Read more » over 5 years ago
warren "Oh, also just for ref, the idea i posted is here: https://publiclab.org/notes/warren/02-09-2017/a-kit-to-design-your-own-formaldehyde-experiment " | Read more » over 5 years ago
Dave-O "You're welcome, @nshapiro ! Is this the same EPA approved method that you used? https://www3.epa.gov/ttnamti1/files/ambient/airtox/to-11ar.pdf And ..." | Read more » over 5 years ago
nshapiro "Thanks, @Dave-O ! We did some side by side testing of this method next to an EPA approved method and we found these tubes to be cross contaminated ..." | Read more » over 5 years ago
kkoerner "LukeS good to know, thanks for testing out those pumps and posting your results! " | Read more » over 6 years ago
mathew "Great writeup, Luke! cool work. " | Read more » over 6 years ago
LukeS "@kkoerner, I tried a similar pump when I was researching this and it created too much turbulent/pulsed of the air stream to get a good measurement ..." | Read more » over 6 years ago
nshapiro "@kkoerner Hi Karl! Great find! It would be fantastic if you could request a quote on these. We are planning on have a lending library of these tool..." | Read more » almost 7 years ago
kkoerner "Any thoughts on using a smaller pump? If you're only trying to draw 0.3 SLPM, there are a couple of pumps (see the attached datasheet and catalog) ..." | Read more » almost 7 years ago
danbeavers "It appears you need some more ventilation or perhaps start using the remediation process. http://publiclab.org/notes/nshapiro/10-20-2014/diy-indoo..." | Read more » about 7 years ago
mathew "Just repeated this test today at 26 degrees, and temperature corrected we got 25ppb. So good news: consistency. Bad news: consistently hazardous c..." | Read more » about 7 years ago
mathew "I ran a formaldehyde test over by our shipping station, now that the flow on our lending kit is calibrated. We got 26ppb, or about 3.5x the chroni..." | Read more » about 7 years ago
mathew "Our portland office has .026ppm (26ppb) of formaldehyde when measured over by our packing and shipping area. That's over 3 times the chronic dange..." | Read more » about 7 years ago
danbeavers "Another observation: It would be good to have a check list for the measurement. For example: Verify that the humidity is above ?? and below ??..." | Read more » about 7 years ago
danbeavers "@Mathew The following is from a mechanical engineer friend of mine: Assuming you could pull a reasonably good vacuum on the orifice, you could ge..." | Read more » about 7 years ago
danbeavers "Mathew: That sounds like a mechanical engineer (which I am not) question. I SUSPECT that it will be the sum of the restrictions because of the lo..." | Read more » about 7 years ago
nshapiro "Here is a photo of the tip breaker that is on some of the analog pumps. We could also pre-score them in a standardized way to create consistent ope..." | Read more » about 7 years ago
mathew "@Danbeavers what if we put a standardized, small orifice on the broken end of the glass tube that is always smaller than a hole broken into the tub..." | Read more » about 7 years ago
danbeavers "Perhaps @Stevie could order them. " | Read more » about 7 years ago
warren "I'm arriving tomorrow -- if you could order those I'd buy them off of you when I arrive, or we could just order tomorrow night when I get in. I jus..." | Read more » about 7 years ago