GB 47500-2026Limits of hazardous substances for the land application of livestock and poultry manure fertilizer (English PDF)

畜禽粪肥还田有害物质限量

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Issued by

SAMR; SAC

Level / Type

National · Mandatory

Issue date

April 30, 2026

Implementation date

May 1, 2027

Scope

GB 47500-2026 is the English-translated version of 畜禽粪肥还田有害物质限量.

GB 47500-2026 is the Chinese national standard covering what may be in manure before it is spread on a field - the heavy metals from feed additives, particularly copper and zinc, the antibiotic residues, the pathogens and the salts, all of which accumulate in soil that is manured year after year. A mandatory standard, first edition, in force from 1 May 2027. China produces an enormous quantity of manure and returning it to the land is the intended route, which is exactly why it needs a limit. It was issued on 30 April 2026 and takes effect on 1 May 2027, as a first edition. The document is under the responsibility of the Ministry of Agriculture and Rural Affairs. This page is published from the official record of the 2026 edition; the clause text of a standard this recent is not yet in circulation, and the figures, limits and tables it contains are those of the document itself, delivered in full with the English translation.

Document preview — GB 47500-2026

National Standard of the People's Republic of China

ICS: 65.020.30
Classification: B 40

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

4 Requirements
5 Sampling and Sample Preparation
6 Test Methods

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. 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 Ministry of Agriculture and Rural Affairs of the People's Republic of China. Limits on harmful substances in livestock and poultry manure returned to the field

1.Scope This document specifies the limits for harmful substances in livestock and poultry manure, sampling and sample preparation requirements, and describes the test methods. This document applies to the use of livestock and poultry manure in nearby cultivated land, orchards, and artificial pastures after harmless treatment and composting.

4 Requirements

The limits for harmful substances when returning livestock and poultry manure to the field should meet the requirements of Table 1.

5 Sampling and Sample Preparation

5.1 Samples of solid manure after storage and composting shall be taken in accordance with the provisions of

7.3.2 in GB/T 25169-2022, and secondary aerobic composting shall be carried out. Samples of fermented (post-ripening) solid manure were taken according to the provisions of

7.3.3.3 in GB/T 25169-2022; samples of liquid manure were taken according to... Sampling is specified in section

6.1.1 of GB/T 27522-2023.

5.2 Solid manure samples should be prepared by drying in an oven at (105±2)°C until constant weight; liquid manure samples should be thoroughly mixed before sampling. Measurement.

6 Test Methods

6.1 Total Cadmium Determined according to the method in NY/T 1978.

6.2 Total Mercury Determined according to the method in NY/T 1978.

6.3 Total Arsenic Determined according to the method in NY/T 1978.

6.4 Total Lead Determined according to the method in NY/T 1978.

6.5 Total Chromium Determined according to the method in NY/T 1978.

6.6 Mortality rate of Ascaris eggs Determined according to the method in GB/T 19524.2.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.

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