In standard weight box used for calibration of analytical
balance there are two numbers (Qty) of 20mg, 200mg,2.oGM
weights. Why?

Answer Posted / nilesh

in box u receive 1,2,5,10,20,50,100,200,500
now for 30 mg u able to use 10+20. but what about 40mg,90mg,140mg,190mg,400mg

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