1. National standard( Chinese codex ) /2015
2. Corporate standard(Dissolution tester )Q/12XQ0189-2010 
Features:  
1. Two drums run synchronously. Auto stop at timing point.
2. The drum is made of high quality hyaline acryl.
3. The speed and revolution of the drum is constant, either preset or real data is displayed on the LED.
4. A MPU is used to control all operations, high accuracy is achieved in testing rotary speed and circle number. Specifications:​

NO.	Specifications:	data
1	Cylinder number	2 pcs
2	Cylinder radius	Φ286mm
3	Cylinder depth	39mm
4	Tablet fall height	156mm
5	Rotation speed	25rpm
6	Rotation Speed accuracy	±1rpm
7	Rotation count	100r
8	Rotation count accuracy	±1r
9	ambient temperature	5 - 35℃
10	RH	＜80 %
11	power	15 w
12	dimension	370×300×340
13	voltage	as clients request