Clean the dust on surface by a soft brush or cleaning cloth before use. The temperature of the weights should be the same as the temperature in the laboratory. Specification Material: 304 Stainless Steel Level: Class F1 Box Size: 9.1x5.7x4.3 / 23x14.5x11 cm Product Weight: 6.6 lbs / 3 Kg Weight range: 1mg-1kg Shape: Cylinder and Flake Packing: Aluminum Case Can be used for balance scale and calibration of electronic scales. Package 25pcs Weights 1x 1000g weights 1x 500g weights 2x 200g weights 1x 100g weights 1x 50g weights 2x 20g weights 1x 10g weights 1x 5g weights 2x 2g weights 1x 1g weights 1x 500mg weights 2x 200mg weights 1x 100mg weights 1x 50mg weights 2x 20mg weights 1x 10mg weights 1x 5mg weights 2x 2mg weights 1x 1mg weights 1x Plastic Tweezer 1x Aluminium Alloy Case 1x Cleaning Cloth The difference between Class F1 and Class M1 Weights 1.
F1 is more precise than M1, with smaller permission error. F1 uses 304 stainless steel, M1 use 2cr13 stainless steel. M1 is with adjust bar (at the bottom of the weights), F1 is without.Any product you return must be in the same condition you received it and in the original packaging. We usually respond within 24 hours on weekdays. Thank you for shopping at our store. The item "304 Stainless Steel Class F1 Calibration Scale Weight Kit Set 1 mg 1 kg 25 pcs" is in sale since Monday, August 27, 2018. This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical/Lab Equipment Attachments & Accessories\Calibration Weights". The seller is "momochae" and is located in Romeoville, Illinois, 60441. This item can be shipped to United States.