| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| stevie | "I know @mathew did some work a number of years ago exploring air flow. Here's a link to some of that material: https://publiclab.org/notes/mathew/0..." | Read more » | over 4 years ago | |||
| stevie | "@nshiparo I was wondering if you have any ideas on these questions, or know who else we might reach out to? " | Read more » | over 4 years ago | |||
| liz | "Hi there! Seems like your post here is perhaps incomplete? Please write back if you intend to complete this post, perhaps we might be able to help? " | Read more » | over 4 years ago | |||
| Ag8n | "Check with the individual sampling tubes for airflow requirements. Most manufacturers also sell hand pumps, that can be used to sample the air rel..." | Read more » | over 4 years ago | |||
| Ag8n | "In industry, we commonly used draeger tubes to measure for a number of contaminants. There are other companies that make less expensive versions o..." | Read more » | over 4 years ago | |||
| monikaroymoni186 | "Thanks for sharing this article it was very helpful. Call Girls in Gurugram | 100% Hot Model Girls Service 24/7 Best Royal Escorts services in Guru..." | Read more » | over 4 years ago | |||
| stevie | "Also, the drinking water standard for nitrates is 10 milligrams per liter (10 mg/l) nitrate-N, or 45 mg/l nitrate-NO3. Most of the consumer tests f..." | Read more » | over 4 years ago | |||
| stevie | "I just looked into these a little further. All of them use sulphuric acid which can be dangerous. The brown ring test: https://byjus.com/chemistry..." | Read more » | over 4 years ago | |||
| liz | "Thank you @Ag8n! " | Read more » | over 4 years ago | |||
| jfalquet | "Thanks a lot, Jack! Considering the prices, I'm wondering whether adding a MID-IR filter to some cheaper detector, and strongly amplifying the resi..." | Read more » | over 4 years ago | |||
| warren | "Hi! focusing can be tough, but if you're occasionally getting things into focus you're doing well. The lens needs to be right up near the slide, al..." | Read more » | over 4 years ago | |||
| JSummers | "Hi jfalquet, I dont have experience with this but it looks like getting out to 13 microns is neither easy nor cheap. Here are some options for a d..." | Read more » | over 4 years ago | |||
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| yp1080030 | " different types of nitrate tests: the brown ring test, Devarda's test, diphenylamine test, and copper turning test CLICK HERE " | Read more » | over 4 years ago | |||
| stevie | "Hi! This is helpful thank you!! can you say more about the tests- how you might conduct it, the costs or the supplies you need for each one? " | Read more » | over 4 years ago | |||
| healthydarkside | "There are four different types of nitrate tests: the brown ring test, Devarda's test, diphenylamine test, and copper turning test. The brown ring t..." | Read more » | over 4 years ago | |||
| Engineerjaykumar | "There is so many test for this these are: Nitrate can be removed from drinking water by three methods: distillation, reverse osmosis, and ion excha..." | Read more » | over 4 years ago | |||
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| gloryaec | "Stevie, Thanks for asking this of others. Glory Adams On 12/16/2019 8:59 AM, notifications@publiclab.org wrote: Are the..." | Read more » | over 4 years ago | |||
| Bronwen | "I think the quickest/cheapest nitrate testing kits may be found in your local pet store (or online retailer) in the aquarium section.. you can get ..." | Read more » | over 4 years ago |