GB/Z 42468.4-2023 (English Version)

Standard No.: GB/Z 42468.4-2023
Language: Chinese, Available in English version
Release Date: 2023
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/Z 42468.4-2023

Introduction

1. Analysis of the background of standard formulation and technological evolution

GB/Z 42468.4—2023 is the fourth part of the "Specifications for the Rescue and Restoration of Paper Archives", which mainly focuses on the specific implementation of restoration operations. Based on the previous parts, this standard further refines the restoration process and operating details to ensure the scientific and standardized restoration of paper archives.

2. Comparative analysis of standard frameworks

Standard Part	Content Overview	Key Points
Part 1: Classification of Damage Levels	It standardizes the damage classification method of paper archives to facilitate the formulation of restoration plans.	The scientificity and operability of damage classification.
Part 2: Survey on the preservation status of archives	Details how to comprehensively evaluate the preservation status of paper archives.	The systematic nature of the survey method and the standardization of data records.
Part 3: Restoration quality requirements	Clears the quality standards after restoration to avoid secondary damage.	The selection of restoration materials and the evaluation indicators of restoration effects.
Part 4: Restoration operation guide	Details the restoration process, from preparation to implementation to acceptance.	The standardization and operability of restoration technology.

3. Explanation of professional terms and practical application cases

3.1 Deterioration Level Assessment

Deterioration level assessment is the basis of restoration work. It determines the restoration priority through comprehensive analysis of the physical and chemical states of archives. For example, for first-level damaged archives (severe damage), immediate repair is required to prevent information loss.

3.2 Ink Reinforcement

Ink reinforcement refers to the enhancement of faded or powdered ink caused by aging or environmental factors. In an actual case, a historical archive used ultraviolet curing technology to repair faded ink and successfully extended the preservation life of the ink.

4. Implementation Suggestions

Staff training:Organize restoration technology training regularly to improve the professional skills and safety awareness of restoration personnel.
Material selection:Preferably use neutral or weakly alkaline restoration materials, and conduct small sample tests to ensure safety.
Equipment configuration:Equip with professional equipment such as dust removal and mildew removal to improve the efficiency and quality of restoration work.
File management optimization:Establish a complete restoration file management system to achieve traceability of the restoration process.

GB/Z 42468.4-2023 history

2023 GB/Z 42468.4-2023 Specifications for Rescue and Restoration of Paper Archives Part 4: Restoration Operation Guide