Comments

Author Comment Last activity Moderation
Ag8n "These instruments are all based on GC detectors. So your best approach is to look at other GC detectors to see which one fits your needs. One goo..." | Read more » almost 5 years ago
Ag8n "This is a suggestion, only. I worked in the polymer industry for many years. This included rubber chemicals. One of the chemicals commonly used ..." | Read more » almost 5 years ago
Ag8n "You have a much better idea in this field than I do. My apologies for any offense I may have caused. Good luck. " | Read more » almost 5 years ago
Ag8n "The U.S. Maintains a snotel (snow telemetry) network. These are stations that monitor the snow depth and then forward that data, daily, by means ..." | Read more » almost 5 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 » almost 5 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 » almost 5 years ago
Ag8n "In the past, this company was using PVC ( polyvinylchloride). If this is still being used, the most major issue from PVC degradation is HCl (hydr..." | Read more » almost 5 years ago
Ag8n "Yes, I have a lot of experience with a number of types of gc. First, if you are talking about buying a frog 5000, realize that you are really talk..." | Read more » almost 5 years ago
Ag8n "There are a number of emission spectra used with the spectrometer. As an example, the instrument is calibrated with the emission spectrum from a ..." | Read more » over 5 years ago
Ag8n "Where does incineration rate on the list? " | Read more » over 5 years ago
Ag8n "What we were taught in industrial statistic s is that often times bimodal curves work themselves out into normal curves. How? Well, even if you h..." | Read more » over 5 years ago
Ag8n "You could easily have a bimodal distribution in your population. But, if you gather more data, who knows? It may turn out to be normal. Ok, how ..." | Read more » over 5 years ago
Ag8n "The common test for outliers in industry is the t-test. Is that the test codap is using? " | Read more » over 5 years ago
Ag8n " Density is difficult to use. Many manufacturers use fillers like titanium dioxide as a filler. This will dramatically alter the density, dependin..." | Read more » over 5 years ago
Ag8n " Dumb question, but what bandwidth do you need for the video signal? " | Read more » over 5 years ago
Ag8n " With PVC, as the plastic degrades, you get more and more conjugated double bonds. Hate to get chemical, but the where the plastic absorbs starts ..." | Read more » over 5 years ago
Ag8n " Check the "baby legs" projects on microparticles. It will give some background. My own experience was in medical plastics industry. We routinely ..." | Read more » over 5 years ago
Ag8n " The green line on a compact florescent lamp is the one at 546 nm. There are a couple of calibration videos on the link @Warren gave that might h..." | Read more » over 5 years ago
Ag8n " Ref web.physics.ucsb.edu/~lecturedemonstrations/composer/pages/36.39-helium-filled balloon " | Read more » over 5 years ago
Ag8n " It depends on the weight of what you are trying to lift. At sea level, based on the ideal gas law, the amount you can lift is 1.02 g of pay load..." | Read more » over 5 years ago
Ag8n " The last I knew, it took calibration to set up the wavelength. One way of doing that was with a compact florescent lamp. But there may have been..." | Read more » over 5 years ago
Ag8n " Green is about 550 nm. Can you tell me the application the local people would like to use it for? Regards " | Read more » over 5 years ago
Ag8n " Consumer reports did an evaluation of radon test kits a few years ago. Might be a good place to start. " | Read more » over 5 years ago
Ag8n " You usually measure visible spectrum in nanometers (nm). Resolution is measured the same way, but tested much differently. Can you give more inf..." | Read more » over 5 years ago