GB 16005-2025 English PDF

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GB 16005-2025: Discriminant and classification of the endemic areas of iodine deficiency disorders
Status: Valid

GB 16005: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 16005-2025	139	Add to Cart	3 days	Discriminant and classification of the endemic areas of iodine deficiency disorders	Valid
GB 16005-2009	149	Add to Cart	2 days	Delimitation for the endemic areas of iodine deficiency disorders (IDD)	Valid
GB 16005-1995	199	Add to Cart	2 days	Criteria of delimitation for IDD endemic areas	Obsolete

Similar standards

GB 16005   GB/T 50034   GB/T 50082   

Basic data

Standard ID: GB 16005-2025 (GB16005-2025)
Description (Translated English): Discriminant and classification of the endemic areas of iodine deficiency disorders
Sector / Industry: National Standard
Classification of Chinese Standard: C61
Classification of International Standard: 11.020
Word Count Estimation: 6,642
Date of Issue: 2025-10-05
Date of Implementation: 2026-11-01
Older Standard (superseded by this standard): GB 16005-2009
Issuing agency(ies): State Administration for Market Regulation and Standardization Administration of China

GB 16005-2025: Discriminant and classification of the endemic areas of iodine deficiency disorders

---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.
ICS 11.020 CCSC61 National Standards of the People's Republic of China Replaces GB 16005-2009 Iodine deficiency disorder zone identification and classification Published on 2025-10-05 Implemented on 2026-11-01 State Administration for Market Regulation The State Administration for Standardization issued a statement.

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents". Drafting. This document replaces GB 16005-2009 "Classification of Iodine Deficiency Disorders Areas". Compared with GB 16005-2009, the main differences are structural adjustments and editorial changes. Aside from the modifications, the main technical changes are as follows. ---The definition of iodine deficiency disorders has been revised (see 3.1,.2009 version 3.1); ---The delineation units for iodine deficiency disorder areas have been changed (see Chapter 4, Chapter 4 of the.2009 edition); ---The technical indicators for ward delineation have been changed (see Chapter 4, Chapter 4 of the.2009 edition); ---The sampling method has been changed (see Appendix A, 6.1.1 and 6.1.2 of the.2009 edition). Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed and is under the jurisdiction of the National Center for Disease Control and Prevention. The release history of this document and the document it replaces is as follows. ---First published as GB 16005-1995 in.1995, and revised for the first time in.2009; ---This is the second revision. Iodine deficiency disorder zone identification and classification

1 Scope

This document specifies the indicators for the identification and classification of iodine deficiency disease areas and describes the corresponding identification methods. This document applies to the identification and classification of iodine deficiency disease areas.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included. For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies. This document. GB/T 5750.2 Standard Examination Methods for Drinking Water – Part 2.Collection and Preservation of Water Samples GB/T 5750.5 Standard Examination Methods for Drinking Water – Part 5.Inorganic Non-metallic Indicators WS/T 104 Diagnosis of Endemic Cretinism and Endemic Subclinical Cretinism WS/T 107.1 Determination of iodine in urine - Part 1.Arsenic-cerium catalytic spectrophotometry WS/T 107.2 Determination of iodine in urine - Part 2.Inductively coupled plasma mass spectrometry WS/T 10027 Diagnosis of Endemic Goiter

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Iodine deficiency in the natural environment leads to a group of diseases and harms caused by iodine malnutrition in the body. Note. This includes endemic goiter, endemic cretinism, endemic subclinical cretinism, as well as miscarriage, premature birth, stillbirth, and congenital malformations caused by iodine deficiency. 4.Iodine deficiency disorder endemic area identification The survey should be conducted at the administrative village (community) level, following the sampling method specified in Appendix A, and data should be collected and preserved in accordance with GB/T 5750.2. Water samples were analyzed for iodine content according to GB/T 5750.5; urine iodine content was analyzed according to WS/T 107.1 or WS/T 107.2; and so on. WS/T 10027 is used for the diagnosis of endemic goiter; WS/T 104 is used for the diagnosis of endemic cretinism. In areas where the median iodine concentration in drinking water is less than 40 μg/L, areas meeting either a) or both b) and c) are classified as iodine deficiency disease areas. a) There are new cases of endemic cretinism; b) Goiter rate. The goiter rate in children aged 8 to 10 years is greater than or equal to 5%; c) Urinary iodine. The median urinary iodine level in children aged 8 to 10 years was less than 100 μg/L, and the number of samples with a median urinary iodine level less than 50 μg/L was greater than 20%. 5.Classification of Iodine Deficiency Disorder Areas The classification criteria for iodine deficiency disease areas are shown in Table 1. ......

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