GB/T 42468.3-2023 English PDF

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GB/T 42468.3-2023: Specifications for rescue and restoration of paper archives - Part 3: Quality requirements for restoration
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Basic data

Standard ID: GB/T 42468.3-2023 (GB/T42468.3-2023)
Description (Translated English): Specifications for rescue and restoration of paper archives - Part 3: Quality requirements for restoration
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A14
Classification of International Standard: 01.140.20
Word Count Estimation: 10,165
Date of Issue: 2023-03-17
Date of Implementation: 2023-10-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 42468.3-2023: Specifications for rescue and restoration of paper archives - Part 3: Quality requirements for restoration

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS01:140:20 CCSA14 National Standards of People's Republic of China Specifications for rescue and restoration of paper archives Part 3: Repair Quality Requirements Released on 2023-03-17 2023-10-01 implementation State Administration for Market Regulation Released by the National Standardization Management Committee

table of contents

Preface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Restoration quality requirements 1 4:1 Deacidification 1 4:2 Decontamination 1 4:3 Handwriting reinforcement and recovery 2 4:4 Framing 2 4:5 Debonding 3 4:6 Trimming 3 4:7 Cutting 3 4:8 Binding 3 Reference 4

foreword

This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents" drafting: This document is the third part of GB/T (Z) 42468 "Paper Archives Rescue and Restoration Specification": GB/T (Z) 42468 has been issued The following sections: --- Part 1: Classification of damage levels; --- Part 2: Investigation of archives preservation status; --- Part 3: Repair quality requirements; --- Part 4: Repair operation guide: Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed and managed by the State Archives Bureau: This document was drafted by: Renmin University of China, Central Archives (National Archives Bureau): The main drafters of this document: Zhang Meifang, Huang Lihua, Wang Yaya, Yu Chen, Li Bing, Song Xin, Cao Jiani, Zhao Peng, Xu Jiaquan, Liu Weimin, Qin Rui:

Introduction

The paper archives rescue and restoration specification is to improve the restoration level of paper archives, and it is necessary to concentrate efforts to rescue and repair damaged or endangered paper archives: Archives are important: GB/T (Z) 42468 "Paper Archives Rescue and Restoration Specification" aims to guide the science of paper archives rescue and restoration Management is composed of 4 parts: --- Part 1: Classification of damage levels: The purpose is to classify and grade the damaged paper archives, which can be used for formulating repair protection plan for reference: --- Part 2: Investigation of archives preservation status: The purpose is to comprehensively understand and grasp the status quo, degree of damage, and Library conditions and management: --- Part 3: Repair quality requirements: The purpose is to establish quality standards for the restoration of paper archives and avoid damage to paper archives during the restoration process: cause secondary damage: --- Part 4: Repair operation guide: The purpose is to standardize the process and operation of paper archives restoration and ensure the quality of paper archives restoration: Specifications for rescue and restoration of paper archives Part 3: Repair Quality Requirements

1 Scope

This document specifies the quality requirements for restoration of paper archives: This document is applicable to the quality control of the restoration of paper archives by various archives at all levels and other paper archive preservation institutions:

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document: GB/T 21712 Technical Specifications and Quality Requirements for Restoration of Ancient Books GB/T 42468:1 Paper archives rescue and repair specification Part 1: Classification of damage levels DA/T 25 Technical Specifications for Archival Finishing WH/T 22 Grading Standard for Damage of Ancient Books and Special Collections

3 Terms and Definitions

GB/T 21712, GB/T 42468:1, DA/T 25, WH/T 22, ISO /T S18344 and the following terms and definitions apply used in this document: 3:1 repair restoration For damaged or aging archives, techniques such as repairing, decontamination, deacidification, handwriting reinforcement, and restoration are adopted to restore the original appearance as much as possible and present information Work:

4 Restoration Quality Requirements

4:1 Deacidification Through the principle of acid-base neutralization, the acidic substances in the paper are removed: The main quality requirements for deacidification are as follows: a) The pH of the paper is neutral or slightly alkaline (7:0≤pH≤8:5); b) It has basically no effect on the performance and life of archival paper; c) There is no blurring or diffusion of handwriting; d) Alkali reserve of paper after deacidification treatment complies with the relevant provisions of ISO /T S18344; e) Deacidification is uniform: 4:2 Decontamination Use physical and chemical methods to remove water stains, oil spots, ink spots, metal rust spots, wax spots, mildew spots, mud spots and other stains on the files: decontamination master ......

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