GB/T 38404-2020 in English

Analysis of the core content of the standard

Key technical requirements

Particle filling control: The standard stipulates that the particle side length is ≤6mm, the fiber length is ≤15mm, and the filling accuracy deviation must be controlled within ±10%. When using a weighing filling valve, it must comply with the GB15179 lubricant standard.

Hot filling process: The center temperature of the finished product must be maintained in the range of 80-95℃, and the filling system should achieve precise control of no bottle without filling and one bottle with one cap.

Safety protection system

• Electrical safety: control system PL level ≥ c, material contact area protection level IP65
• Mechanical protection: set emergency stop device (in line with GB/T16754), bottle explosion protection device and interlocking system
• Material hygiene: contact surface roughness Ra≤0.8μm, bearings adopt food-grade sealing design

Implementation suggestions

It is recommended that manufacturers focus on:

1. Establish a particle size detection system for granular materials, and regularly calibrate the metering accuracy of the filling valve
2. The temperature control system needs to be double calibrated to ensure the temperature stability of hot filling
3. Establish equipment lockout/tagout procedures in accordance with GB/T19670