GB/T 39768-2021 in English

VALID

Classification and coding for human biomaterial

Issued on:2021-03-09
Implemented on:2021-10-01
File Format:PDF
Delivery:Via email within 5 business days

Price(USD)： $430.00
$418.00

Standard No:	GB/T 39768-2021
Document status:	VALID
Title in English:	Classification and coding for human biomaterial
Title in Chinese:	人类生物样本分类与编码
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 5 business days
Issued on:	2021-03-09
Implemented on:	2021-10-01
ICS Classification:	07.080-Biology. Botany. Zoology
Chinese Classification:	C40-Medical optical instrument and endoscope
Professional Classification:	GB-National Standard
Related Keywords:	free dna classification classification dimension coding structure hierarchical depth example sample three-level classification genomic dna two-dimensional classification system three-level classification facial muscle
Related Topics:	biological sample sample stranded RNA Biospotter sample standard human being Blank sample and parallel sample biological sampler parallel sample and blank sample biological sample Biospotter primary cell line long chain code Samples and Samples samples and samples sampler microbe human Taxonomy biological class 1 Classification of living things biological classification Human Bioanalysis Classification of sample dividers messenger Analysis of biological samples Various encoders biological classification classification code classification code strand rna biology long non-coded biology long noncoding human species Type of sample divider class long non-coded Coding and non-coding regions human compound chemistry and humans Classification of biological reagents True and original, biological samples long-term biological number Batch-to-batch analysis of biological samples sample type sample type dna has nothing to do with human beings biological sample gold primary cell line sampler, type of sampler sample sample Sample divider Type of sample divider biological number Classification of biological reagents samples and samples after the sample GBT39768 GB/T 39768-2021 Classification of biological samples Whole blood biological sample analysis Biological sample GCP National standard classification of biological samples for biotechnology National material classification standards and coding rules Standard biological samples gb/t 39768-2021

《GB/T 39768-2021人类生物样本分类与编码》由TC559（全国生物样本标准化技术委员会）归口，主管部门为国家标准化管理委员会。

Introduction

Interpretation of the core content of the standard

This standard constructs a two-dimensional classification system for human biological samples:

Classification dimension	Coding structure	Hierarchical depth	Example
Sample type	1 letter+4 numbers	Three-level classification	Genomic DNA is encoded as A1021
Organ source	1 lowercase letter+4 numbers	Three-level classification	Facial muscle is encoded as c0101

Key technological breakthroughs

Innovation in free DNA classification

The standard distinguishes cf-DNA (circulating free DNA) and ct-DNA (circulating tumor DNA) for the first time:

cf-DNA code: A1024
ct-DNA code: C2025

Clinical application: In the early screening project for lung cancer, distinguishing the proportion of ct-DNA in patients' peripheral blood by coding can improve the diagnostic accuracy by 15%

Implementation recommendations

Biological sample library construction specifications

Establish a dual-coding index system
Configure an automatic coding generator
Regularly update the sample catalog against the standard

Construction phase	Standard corresponding clauses	Implementation points
Sample collection	Chapter 4 Classification Rules	Simultaneous record of sample type + anatomical source
Information entry	Chapter 5 Coding Rules	Use standard verification tools to verify coding