T/CPPIA 12-2021 Active Group standards

T/CPPIA 12-2021 The impact of contact with agricultural plastic mulch containing sulfur and chlorine pesticides on the durability of the material for the weathering test

Publish Date: 2021-12-02 Implement Date: 2021-12-30 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CPPIA 12-2021

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Light industry, culture, and daily necessities

ICS Name: Films and sheets

Publish Date: 2021-12-02

Implement Date: 2021-12-30

Scope

Scope: This document specifies the determination indicators, test methods, determination rules, and inspection reports for the weather resistance of agricultural greenhouse films exposed to sulfur- and chlorine-containing pesticides. This document is applicable to agricultural large, medium, and small greenhouses and greenhouse transparent covering films made from polyethylene (PE) and ethylene-vinyl acetate copolymer (EVA) as raw materials that are exposed to sulfur- and chlorine-containing pesticides. Main technical content: 4. Determination indicators 4.1 Mechanical property retention rate The mechanical property retention rate shall comply with the requirements specified in Table 1. Table 1 Requirements for Mechanical Property Retention Rate Item Tensile strength retention rate (longitudinal/transverse) /% ≥60 Breaking nominal strain retention rate (longitudinal/transverse) /% ≥60 4.2 Pesticide sulfur and chlorine residue The pesticide sulfur and chlorine residue shall comply with the requirements specified in Table 2. Table 2 Pesticide sulfur and chlorine residue Use period/year (a) Residue/(mg/kg) Sulfur (S) Chlorine (Cl) a≤1 ≤500 ≤100 12 ≤2000 ≤180