GB/T 25169-2022Technical specification for monitoring livestock and poultry manure (English PDF)

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 replaces GB/T 25169-2010 "Technical Specifications for Monitoring Livestock and Poultry Manure". Compared with GB/T 25169-2010, except for structural In addition to rectification and editorial changes, the main technical changes are as follows.

a) Removed the background check (see Chapter 3 of the 2010 edition);

b) Increased monitoring program development (see Chapter 4);

c) The testing items have been changed (see Chapter 5, 9.1 of the 2010 edition);

d) Deleted the layout of sampling points for manure in the house (see 4.1 of the 2010 edition);

e) Added untreated feces sampling points (see 6.1);

f) Increased the manure sampling layout during the composting process (see 6.3);

g) Deleted the fecal sampling in the house (see 5.3.1 of the 2010 edition);

h) Increased sampling of untreated feces (see 7.3.1);

i) Added manure sampling during composting (see 7.3.3);

j) Changed the sample record and identification (see 7.5, 5.4 of the 2010 edition);

k) increased sampling safety (see 7.6);

l) The transportation of samples has been changed (see Chapter 8, Chapter 6 of the 2010 edition);

m) Changed specimen preparation and sample storage (see Chapter 9, Chapters 7 and 8 of the 2010 edition);

n) The analysis method has been changed (see Chapter 10, 9.2 of the 2010 edition);

o) Deleted the result representation (see 9.3 of the 2010 edition);

p) Deleted quality assurance (see Chapter 10 of the 2010 edition);

q) Changed the quality control (see Chapter 11, 10.1 and 10.2 of the 2010 edition);

r) Increased verification method (see Chapter 12);

s) Deleted the record form of livestock and poultry manure collection (see Appendix A of the 2010 edition);

t) Changed the livestock and poultry feces sampling record form (see Appendix B, Appendix D of the 2010 edition);

u) The label of livestock and poultry manure samples has been changed (see Appendix C, Appendix C of the 2010 edition).

1 Scope

This document stipulates the formulation of livestock and poultry manure monitoring plan, monitoring items, sampling distribution points, sample collection, sample transportation and handover, and sample preparation.

It describes the test methods and verification methods for livestock and poultry manure monitoring.

This document is applicable to the monitoring of the collection, treatment and resource utilization of livestock and poultry manure.

This document is not applicable to the monitoring of commercial organic fertilizers.

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 7959-2012 Hygienic requirements for harmless excrement

GB/T 24875 Determination of lead, cadmium, chromium and mercury in manure of livestock and poultry by inductively coupled plasma mass spectrometry

HJ 491 Determination of copper, zinc, lead, nickel and chromium in soil and sediment by flame atomic absorption spectrophotometry

NY/T 525-2021 Organic Fertilizer

NY/T 3442-2019 Technical Specifications for Livestock and Poultry Manure Composting

3 Terms and Definitions

The following terms and definitions apply to this document.

4 Monitoring plan formulation

Before carrying out monitoring work, a monitoring program should be formulated. The monitoring plan should include. monitoring purpose, monitoring items, sampling locations, sample collection Methods, sample transportation and handover, sample preparation and storage, test methods, and quality control measures, etc.

5 Monitoring items

According to the monitoring purpose, select the corresponding monitoring items, mainly including moisture content, organic matter, total nitrogen, total phosphorus, total potassium, copper, zinc, cadmium, lead, chromium, Mercury, fecal coliform count, roundworm egg mortality, seed germination index and sulfadiazine, sulfamethazole, sulfamethazine, sulfamethoxine pyridine, enrofloxacin, danofloxacin, sarafloxacin and tylosin.