Review on 🔩 Stainless Steel Calibration Weight by Goetland by Samiran Pusarla

The weights appear to be high quality and accurate. I weighed them to the nearest 0.1 mg on an OHAUS analytical balance. Before testing these weights, I calibrated my scale using ANSI Class 1 weights. Everything on my scale was absolutely accurate up to 5 g. 10 g weight decreased by 0.1-0.2 mg, 20 g weight decreased by about 0.2 mg, 50 g weight decreased by 0.4 mg. These are definitely F1 weights with anything up to 5g closer to E1 class so these are good weights for the money. They can be used to calibrate anything down to 0.001g, but for 0.1mg accuracy you may need to upgrade to get the best possible calibration. I couldn't test anything above 50g as my scale only works up to 60g, I would assume that each additional weight after 50g has double the error of the previous weight. So a 100g weight would have an error of 0.8mg and a 200g weight would have an error of 1.6mg, but again I couldn't verify this. All of this to say that these weights are just as accurate as my ANSI Class 1 weights, but are a lot cheaper. If you are looking to calibrate a high end analytical balance I would say these weights will fit any balance up to 5g. 0005 g) is right for your applications then these are the weights for you and I wouldn't shell out hundreds of dollars for OIML Class E2 or ANSI. Class 1.