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GB/T 37235-2018Specification for forensic examination of document material (English PDF)

文件材料鉴定技术规范

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 28, 2018

Implementation date

April 1, 2019

Scope

GB/T 37235-2018 is the English-translated version of 文件材料鉴定技术规范.

GB/T 37235-2018 sets out how document materials such as paper, ink and adhesives are identified in forensic document examination. It defines general terms, including document material, paper, paper size, appearance defects of paper and paper grain marks, and describes the main characteristics of common document materials.

It then covers how those materials are characterised, how their type is identified, and the types of examination opinion with the basis for each judgement.

It relies on GB/T 4687 for paper terminology, GB/T 451.3 for paper thickness, GB/T 7974 for brightness, GB/T 19267 for the physical and chemical testing of trace evidence and GB/T 37234-2018 for the general specification of document examination. It was issued on 28 December 2018 and has applied since 1 April 2019.

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Document preview — GB/T 37235-2018

National Standard of the People's Republic of China

ICS: 13.310
Classification: A 92

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword
1 Scope
2 Normative references
3 Terms and Definitions
4 Main characteristics of common document materials
5 Document material characterization
6 Document material type identification
7 Types of judgments and judgment basis
Reference

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This standard specifies the general terms and definitions of document material identification, the main characteristics of common document materials, document material characterization, text The type of material identification, the type of opinion and the basis for judgment.

This standard applies to the identification of common document materials such as paper, ink, adhesives, etc. in the identification of documents in the field of forensic/forensic science. Document material type identification.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 451.3 Determination of paper and board thickness

GB/T 4687 paper, cardboard, pulp and related terms

GB/T 7974 Paper, paperboard and pulp blue diffuse reflection factor D65 Determination of brightness (diffuse/vertical method, outdoor daylight conditions)

GB/T 19267 Physical and chemical testing of criminal technical trace evidence

GB/T 37234-2018 General Specification for Document Identification

3 Terms and definitions

The following terms and definitions as defined in GB/T 4687, GB/T 19267 and GB/T 37234-2018 apply to this document.

3.1 Document material

A general term for various materials such as paper, ink, and adhesive for making documents.

3.2 Paper

A general term for all types of base paper and paper printing.

3.2.1 Paper size

The shape and size of the paper.

Note: In the paper specification, the size of the paper or cardboard is expressed in the following order. width, length, where the smaller size is the width. Printing, writing and painting For the standard of drawing size, refer to the provisions of GB/T 148.

3.2.2 Paper defect

Paper damage or defects such as dust, spots, and skew caused by various reasons.

3.2.3 Paper grain mark

The general name for all kinds of marks such as blanket marks, net marks, and watermarks left by the paper during the papermaking process.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 19267

Cited by

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GB/T 31458-2026|GB/T 47478.1-2026|GB 10408-2025|GB 21556.2-2025|GB 46036-2025|GB/T 17001.1-2025

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