GB/T 24750-2023 (English Version)

Standard No.: GB/T 24750-2023
Language: Chinese, Available in English version
Release Date: 2023
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 24750-2023
Replace: GB/T 24750-2009

Scope: This document specifies the technical requirements, inspection rules, acceptance and quality assurance period of ethephon technical, as well as marking, labeling, packaging, storage and transportation, and describes the test methods of ethephon technical. This document is applicable to the quality control of ethephon technical products.

Introduction

1. Standard Overview

GB/T 24750-2023 Ethephon Technical Material is a national standard of the People's Republic of China, which is used to regulate the technical requirements, test methods, inspection rules and quality assurance of ethephon technical material. This standard replaces the original GB/T 24750-2009 version. The main modifications include updating technical indicators, adding new test items (such as ion chromatography) and increasing the quality assurance period.

2. Technical Requirements

Item	Indicator
Ethephon mass fraction/%	≥90.0
MEPHA mass fraction/%	≤1.0
1,2-Dichloroethane mass fraction/%	≤0.05
Water-insoluble matter/%	≤0.2
pH value	1.5~2.0

3. Comparison of standard frameworks

Compared with GB/T 24750-2009, this standard is optimized in the following aspects:

Technical indicator adjustment: The mass fraction requirement of ethephon remains unchanged, but the mass limits of MEPHA and 1,2-dichloroethane are newly added.
Detection method improvement: Ion chromatography is introduced as the arbitration method for the mass fraction of ethephon, and gas chromatography is added for the detection of 1,2-dichloroethane.
New inspection rules: clarify the factory inspection and type inspection items, and increase the quality assurance period requirement (two years).

4. Implementation suggestions

Case analysis: Standard application of a pesticide company

When a pesticide company adopted this standard, it first established a complete quality control system, including:

Purchasing link: strictly control the quality of raw materials to ensure compliance with GB/T 3796 requirements.
Production process: optimize the production process to reduce the generation of MEPHA and 1,2-dichloroethane.
Detection link: equip with ion chromatograph and gas chromatograph to ensure that all indicators meet the requirements.

Suggestions: When implementing this standard, enterprises should focus on the following aspects:

Establish an internal training mechanism to ensure that relevant personnel are familiar with the content of the new standard.
Optimize the configuration of testing equipment to meet the requirements of ion chromatography and gas chromatography.
Periodically conduct quality review and analysis to continuously improve product quality.

GB/T 24750-2023 Referenced Document

GB 3796 General rule for packing of pesticides
GB/T 1601 Determination method of pesticide pH value
GB/T 1604 Commodity pesticide regulations for acceptance
GB/T 1605 Sampling method for commodity pesticides
GB/T 28136 Testing method of material insoluble in water for pesticides
GB/T 601 Chemical reagent.Preparations of reference titration solutions
GB/T 603 Preparation of preparations and products used in chemical reagent test methods
GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values

GB/T 24750-2023 history

2023 GB/T 24750-2023 Ethephon technical drug
2009 GB/T 24750-2009 Ethephon technical