GB/T 34723-2017 in English

Interpretation of the National Standard of the People's Republic of China GB/T 34723—2017

This standard specifies the use of gas chromatography to determine the content of residual styrene monomer in the coating layer of unsaturated polyester resin decorative wood-based panels. It is applicable to unsaturated polyester resin decorative wood-based panels used in interior decoration, furniture, doors and musical instruments.

Comparison of Standard Frameworks

Explanation of professional terms and application cases

Implementation Suggestions

• Sample Collection and Preparation
  • According to the standard requirements, sample the unoccupied part of sample C and adopt the "pin" sampling method
  • Be careful to avoid frictional heat generated during the scraping process of the blade that may cause resin cracking
• Test Condition Control
  • The column flow, split ratio and detector parameters of the gas chromatograph must be set strictly in accordance with the standard requirements
  • Ensure the accuracy of the injection volume, and the injection volume for each time is 1.0 μL
• Data Processing and Reporting
  • Calculate the styrene monomer content in the specimen according to the standard curve, and retain two significant figures
  • Provide a complete test report, including sample information, test conditions and error analysis

Summary

GB/T The 34723-2017 standard provides a scientific basis for the determination of residual styrene monomer in unsaturated polyester resin decorative wood-based panels. It combines gas chromatography and internal standard methods to ensure the accuracy and reliability of the test results. In practical applications, it is recommended to strictly follow the standard requirements for sample collection, preparation and testing, and pay attention to instrument maintenance and data recording.