GB/T 44205-2024 in English

1. Background and significance of standard formulation

The formulation of GB/T 44205-2024 is based on the actual needs of the field of cultural relics restoration and protection, and aims to standardize the preparation process of ancient lacquer film microscopic observation samples. The standard was jointly drafted by the University of Science and Technology of China, the National Museum of China and other institutions, and mainly focuses on the disease research and restoration effect evaluation of unearthed and collected bamboo and wood lacquerware cultural relics.

2. Comparison of standard frameworks

3. Interpretation of the core content of the standard

Sampling process: The first step in sample preparation is sampling. A detailed sampling plan should be formulated based on the preservation status of the cultural relics and research needs. When sampling, photos of the cultural relics and the sampling location should be taken, and the sample information should be recorded (Appendix A). The embedding material should be a resin with high transparency and low curing shrinkage, such as epoxy resin or light-curing resin.

4. Analysis of technological evolution

From the perspective of technological development, the sample preparation method for microscopic observation of ancient paint films has undergone a transformation from traditional manual operation to modernization and standardization. Early methods relied on experience and lacked unified standards; with the advancement of scientific and technological cultural relics protection, the sample preparation process has gradually achieved standardization and traceability.

5. Implementation Suggestions

• Operational Specifications:Sampling, embedding, grinding and polishing should be carried out in strict accordance with standard requirements to ensure the integrity and observability of the samples.
• Equipment Selection:Select a suitable microscope (such as a reflected optical microscope or a scanning electron microscope) according to experimental requirements, and equip it with corresponding accessories.
• Staff Training:Operators should receive professional training and be familiar with the sample preparation process and relevant cultural relics protection knowledge.