GB/T 7643-2018 in English

GB/T 7643—2018: Overview of the Standard for Raw Collagen

Analysis of Standard Revision Background and Technological Evolution

GB/T 7643—2018 Raw Collagen is a comprehensive revision based on the replacement of the original standard GB/T 7643—1987. The main background of this revision includes:

• Adapting to the technological progress and quality requirements of the industry
• Increasing international testing methods and standard color cards (PANTONE)
• Optimizing inspection rules and storage and transportation conditions

Comparative Analysis of Quality Requirements for Raw Collagen

Interpretation of inspection methods and rules

According to the standard requirements, the inspection of shellac includes the following key steps:

1. Color determination: The international light industrial product standard color card (PANTONE) is used for evaluation in combination with the appearance color.
2. Glue thickness determination: It is carried out in accordance with GB/T35805 standard to ensure measurement accuracy.
3. Determination of heat curing time: According to GB/T 8143 method, test the curing speed of colloid.
4. Determination of volatile matter (water content): Detection is carried out by drying method or distillation method.
5. Determination of hot ethanol insoluble matter: Separate and weigh insoluble matter by solubility test.

Storage and transportation conditions

The storage and transportation environment of shellac raw glue must meet the following requirements:

• Temperature control: The storage environment temperature should be lower than 25°C to avoid deterioration caused by high temperature.
• Packaging requirements: Use moisture-proof and sun-proof materials for packaging. It is recommended to use containers with good air permeability such as sacks.
• Transport protection: During transportation, the product must be protected from sunlight, rain and heat sources to ensure safe arrival.

Implementation suggestions and precautions

To ensure that the quality of raw shellac meets the GB/T 7643-2018 standard, the following measures are recommended:

1. Sampling strictly according to the standard: Random sampling is carried out in accordance with the GB/T 8142 method.
2. Establish a quality traceability system: Record the source, inspection results and storage conditions of each batch of products.
3. Strengthen personnel training: Ensure that the inspectors are familiar with the standard requirements and operating procedures.
4. Optimize the storage environment: It is recommended to use air-conditioning equipment to control humidity to avoid caking and mold.