Comments

Author Comment Last activity Moderation
Ag8n "Error here. It should not be objective c, as noted above. It should be some plastics are showing higher extractables than bulk water. Something..." | Read more » 9 months ago
Ag8n "Getting a hold of the USP used to be difficult and expensive. While current USP may still be expensive, here is a source for older versions. "Pha..." | Read more » 9 months ago
Ag8n "USP/BP/EP means United States Pharmacopoeia,BP is British Pharmacopoeia, and EP is European Pharmacopoeia. Sections of the USP are divided into mo..." | Read more » 9 months ago
Ag8n "The CO2 produced can be measured several ways. Each method has advantages and disadvantages and depends on the final use of the instrument. For exa..." | Read more » 9 months ago
Ag8n "If you want an overview of TOC, Wikipedia is a good start. The current article seems pretty thorough ( dated 19 July 2022 by 75.143.92.215). Any c..." | Read more » 9 months ago
Ag8n "Previous methods could be somewhat hazardous. To give an example, ammonia related chemicals often work their way into drug compounds. It can be f..." | Read more » 9 months ago
Ag8n "Going back over this. We did a lot of work with total organic carbon (TOC). According to Dr. Paul Whitehead at egalabwater.com (the blog title is..." | Read more » 9 months ago
Ag8n "Think I got it right this time. The write up in rtl-sdr for Open-Weather was quite impressive. Congrats! " | Read more » 9 months ago
Ag8n "Thank you for the reply! That sounds good. I wasn't aware of Google translate and was having trouble with the public lab translate feature. Bhamst..." | Read more » 9 months ago
Ag8n "Thank you! " | Read more » 10 months ago
Ag8n "The project looks interesting. Read the cave pearl project and the Git Hub page. Is there an easy way to translate this to English? Sorry for my..." | Read more » 10 months ago
Ag8n "Very impressive! Which plastic lens did you use? The one from the computer drive or the one from a laser pointer? Thank you!! " | Read more » 10 months ago
Ag8n "Interesting. We would do some of the individual tests, for example oil and grease. These were only done for a short period of time ( a year or tw..." | Read more » 10 months ago
Ag8n "Yes, that's the one! Sorry about that! Ok. So playing with SDR ++ shouldn't cause any problems. Thank you!! " | Read more » 10 months ago
Ag8n "Sashae- Caught your note on Rtl-Sdr about progress with the demodulator. Will it still use SDR# and what plug ins are recommended? Thank you. " | Read more » 10 months ago
Ag8n "Found another good example. It's from six years ago on the PBS series "Gross science". The title on youtube is "See microbes with this DIY phone ..." | Read more » 10 months ago
Ag8n "Very helpful video on the lens removal. Thank you. " | Read more » 11 months ago
Ag8n "Yes, that did it! Thank you very much. Only did a quick once over of the diagrams. It looks like they take the focusing lenses out of a CD drive ..." | Read more » 11 months ago
Ag8n "Having trouble with the "digital manual of construction in spanish". For whatever reason, the link doesn't work here. Could you please post the i..." | Read more » 11 months ago
Ag8n "It looks like a single beam instrument was used for this work. With a double beam instrument, there is no need for phrases like "OD435/OD415". Th..." | Read more » 11 months ago
Ag8n "Some vehicles, in most major cities, have to be tested annually for fuel emissions and mpg. Not all vehicles must be tested and the fuel emissions ..." | Read more » 12 months ago
Ag8n " Lichen1.docx Hopefully, this will attach. " | Read more » 12 months ago
Ag8n "In this area, lichens aren't common. Attached is a rough draft using lawn clippings to set up and test using various instruments. Don't know how ..." | Read more » 12 months ago
Ag8n "If using an instrument like a hunter colorimeter, be careful. There is the Hunter L,a,b scale. Then there is the cie L,a,b* scale. Most instrumen..." | Read more » about 1 year ago