System 3 suggests mixing by weight for small batches. How accurate must you be (e.g., is 55 to 45 OK)? How do you get that accuracy?
626591
I use a small paper note pad and squirt two even puddles of resin and hardener on the pad. Then I mix the two puddles together well. I mix a little more than I think I need for the job and use any extra on any other any other projects I have.
2028107
Hello, we generally recommend to start with 1 tbsp per 4 fl. oz. and then adjust as necessary. Thanks!
854291
I don't recommend M. Gonzalez' solution. I calibrated to 1000g. My 500g weight then says 667g. Calibration is not linear.
891537
I checked the accuracy by using a charcoal canisters {2 separate tests} from a good, local lab...so I trust the lab results were accurate as benchmark. The meter read about 45% higher. The canister was 9 and meter about 13 on one test, and appx same on second test. So I just adjust divide my meter reading my 1.45. So if meter reads 2....divide by 1.45=1.38. In other words....if you increase 1.38 by 45% you have 2.00.
2093961
Very accurate! I use it for my etsy shop and I sell a lot of small items and it is wonderful. Never had a problem with small weights like ounces.
283761
I have a mix in mine and it seems ok. I do try to be careful with it due to previous reviews. I've had no problems.
77936
How accurate? (one way to check is to put the purest water you have: distilled, filtered, etc... to the mL marks and then calibrate your digital scale with the empty glassware, then add the water. 300 mL of pure water should be close to 300 g, 700 mL ~=700g etc... other measuring cups are reported to be not very accurate.
65008
I've never tried it, but have you checked with the USPS to see if they have any calibration weights on site? I'm sure their scales, like all scales, have to be calibrated regularly. You could take it to them and see what they say. I live in a rural area and the local branch is never very busy, so I'm sure they would help me. A busier location may not be as helpful.
1351922
It dose not work very well. I've tried mixing several different ratios and they all had displeasing results.
765375
I have calibrated my set within 4/100 of a gm.That is using 100 gm calibrating weight.Not bad..
1532562
Guys you can't convert measurements of weight into measurements of volume in a general sense because it depends on the substance being weighed and measured. A tsp of flour probably weighs a bit less than a tsp of led pellets. You must experiment with each particular substance as there is no general conversion that will be accurate. Most charts I have seen are referencing water which works very well when you are weighing and measuring water. HA powder? Not so much.
329683
I think my best go was three pounds. I usually did two pound batches and had room to spare.
506867
Best way is to play. Try different amounts (starting with very little) on batch's of your plants and track the results. There are so many variables when growing something/anything, it is best to take the time to find what will work. If you don't have that many I would start at 1/4 that recommended amount. It may not seem like much, but at least you won't over do it. Which in most cases plants don't recover very well or at all.
1900844
I use one packet of starter or a tablespoon of a previous batch per quart of milk. Hope that helps!
1040804
I have always tried to go a little more then their recommendations. So in your case i would do 3oz per gallon to err on the side of more is better. I have been told that I overdo it some times, but hey it works and I havn't hurt anyone yet so...
551924
I have weight items as small as 0.2 grams but I dont know how accurate it is. I have also tested it and found it to be accurate from 1 gram to 50. Good product.
124807
I routinely measure 0.04 grams, works for me but I have no way to compare. The calibration seems right on.