GB/T 39059-2020 in English

VALID

Determination of harmful substance emissions from synthetic sports surfaces—Environmental chambers method

Issued on:2020-09-29
Implemented on:2021-01-01
File Format:PDF
Delivery:Via email within 5 business days

Price(USD)： $370.00
$359.00

Standard No:	GB/T 39059-2020
Document status:	VALID
Title in English:	Determination of harmful substance emissions from synthetic sports surfaces—Environmental chambers method
Title in Chinese:	运动场地合成材料面层有害物质释放量的测定环境测试舱法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 5 business days
Issued on:	2020-09-29
Implemented on:	2021-01-01
ICS Classification:	83.140.99-Other rubber and plastics products
Chinese Classification:	G40-Rubber products in general
Professional Classification:	GB-National Standard
Related Keywords:	environmental test chamber environmental test chamber specific detection limits environmental chambers harmful substance emissions synthetic sports surfaces
Related Topics:	release amount Geological surveying in colored geology is Heavy volume Environmental chamber environmental test Environmental test chamber Environmental Test Standards test cabin environmental test GBT39059 GB/T 39059-2020 Methods for determining drug release Methods for quantitative drug release What are the release measurement methods? Steel coating releases harmful substances

《GB/T 39059-2020运动场地合成材料面层有害物质释放量的测定环境测试舱法》由TC374（全国质量监管重点产品检验方法标准化技术委员会）归口，主管部门为国家标准化管理委员会。

Introduction

Analysis of the core content of the standard

This standard uses an environmental test chamber to simulate the actual use environment. By controlling parameters such as temperature (60±2)℃ and humidity (5±2)%, the release of harmful substances such as formaldehyde and TVOC in the synthetic material surface layer is determined. The main technical points include:

Technical indicators	Required parameters	Test methods
Cabin volume	50-200L	Appendix A
Air exchange rate	(1±0.01)h⁻¹	Clause 5.4
Material/cabin load ratio	0.4±0.02m²/m³	Formula (1)
Background concentration requirements	Formaldehyde≤6μg/m³,TVOC≤50μg/m³	Clause 7.2.4

Key technological innovations

Compared with traditional detection methods, this standard innovatively proposes:

Dynamic sampling system: The series adsorption tube design (Figure 2) is adopted to effectively avoid penetration during the sampling process
Dual cleaning solution: Chemical cleaning (alkaline cleaning agent) or 180℃ high temperature cleaning can be used (Clause 7.2.2)
Compound judgment standard: The data is valid when the adsorption rate of the main adsorption tube is ≥95%, and 80-95% needs to be combined for calculation (Clause 8.1)

Implementation difficulties and countermeasures

Case: When testing a prefabricated runway material, the TVOC background concentration exceeded the standard and was resolved through the following steps:

Extended the high-temperature cleaning time to 6 hours
Replaced the cabin sealing material with PTFE
Added a pre-activated carbon filter

The final background concentration dropped from 68μg/m³ to 42μg/m³, meeting the standard requirements.

Application value of the standard

The implementation of this standard effectively solves the following problems:

Comparability of release amounts between cast-in-place and precast surface layers (definitions in 3.1-3.3)
Evaluation of the release law of materials under accelerated aging under high temperature environment
Provide testing method support for product standards such as GB36246-2018