different types of balances

·         Standard readabilities (or scale intervals) for various balance types.

1.      Ultra-micro balances =0.1μg  = 0.0000001 g = 7 digits.
2.      Microbalance = 1 μg =0.000001 g = 6 digits.
3.      Semi-microbalance =0.01 mg =0.00001 g= 5 digits.
4.      Analytical balance = 0.1 mg =0.0001 g= 4 digits.
5.      Precision balance =1 g to 1 mg =1 g to 0.001 g = 3 digits.

 ·        Un gloved hands potential heat transfer to weight and enclose. 

·        Do not touch the hand balance enclose affect the thermal stabilization. 

Sl. No.	Type of Balance	Minimum Readability (d)	No. of Digits after Decimal Place (g)	Accuracy Class
1.	Ultra-micro balance	d = 0.1 μg = 0.0000001 g	7	I
2.	Micro balance	d = 1 μg = 0.000001 g	6	II
3.	Semi-micro balance	d = 0.01 mg = 0.00001 g	5	III
4.	Analytical balance	d = 0.1 mg = 0.0001 g	4	IV
5.	Precision balance	d = 50 mg to 1 mg = 0.05 g to 0.001 g	2 or 3	V
6.	Medium balance	d = 1 g to 2 g	0	VI
7.	Ordinary balance	d > 5 g	0	VII