【国家标准】 粮油机械　螺旋输送机

This standard specifies the terms and definitions，working theory.Models designation and basic parameters，technical requirements，test methods，inspection rules，marking，packaging，transport and storage requirements for screw conveyer.
This standard is applicable to the screw conveyer whose working position is horizontal or close to horizontal(dip angle ≤ 20 °) for continuous and uniform conveying of powdery or granular grains.