T/GDPIA 33-2021 Active Group standards

T/GDPIA 33-2021 Polycarbonate sponge using calcium carbonate for pores (translating to "The permeability of plastic films can be improved by using calcium carbonate as a pore former")

Publish Date: 2021-06-15 Implement Date: 2021-07-01 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/GDPIA 33-2021

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Daily-use plastic products

ICS Name: Plastic auxiliary materials and additives

Publish Date: 2021-06-15

Implement Date: 2021-07-01

Scope

Scope: This document specifies the terms and definitions, technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage of calcium carbonate pore-forming agents (hereinafter referred to as pore-forming agents) for plastic breathable films. This document is applicable to calcium carbonate pore-forming agents used in the production of plastic breathable films by the wet method. Main technical content: 1. Scope: This document specifies the terms and definitions, technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage of calcium carbonate pore-forming agents (hereinafter referred to as pore-forming agents) for plastic breathable films. This document is applicable to calcium carbonate pore-forming agents used in the production of plastic breathable films by the wet method. 2. Normative references 3. Terms and definitions 4. Requirements 4.1 Appearance 4.2 Hydrophobicity 4.3 Odor 4.4 Technical requirements 5. Test methods 5.1 Appearance 5.2 Whiteness 5.3 Calcium carbonate content 5.4 Particle size D50 5.5 Particle size D90 5.6 Hydrophobicity 5.7 Moisture 5.8 Surface modifier content 5.9 Oil absorption value 5.10 Odor 6. Inspection rules 6.1 Inspection classification 6.2 Inspection items 6.3 Batching rules 6.4 Sampling plan 6.5 Judging rules 7. Marking 8. Packaging, transportation, and storage 8.1 Packaging 8.2 Transportation 8.3 Storage