GB/T 446-2023 in English

• Oil content (mass fraction):The new standard clearly stipulates the oil content of Class I and Class II products.
• Color:The Saybolt colorimeter method and automatic tristimulus value method are used to ensure the optical performance of the product.
• Needle penetration:An indicator reflecting the hardness of paraffin wax, which affects its application in electronics and construction.

4. New content and technological evolution

The new standard introduces the following important improvements:

1. New product classification:Fully refined paraffin wax is divided into Class I and Class II for easy market application.
2. Stability test method:Use ultraviolet irradiation and automatic colorimeter to measure Saybolt color change and evaluate product stability.
3. Refine technical indicators:For example, the kinematic viscosity determination method and arbitration method are more accurate.

5. Implementation suggestions

To ensure the effective implementation of the new standard, it is recommended that:

• Enterprises should be equipped with special equipment such as stability testers.
• Strictly carry out quality control in accordance with sampling and batching requirements.
• Strengthen employee training to ensure that technical personnel are familiar with the new standard and the newly added test methods.