T/HGHX 02-2024 Active Group standards

T/HGHX 02-2024 molecular sieve activation powder

Publish Date: 2024-10-28 Implement Date: 2024-11-30 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/HGHX 02-2024

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Other chemical products

ICS Name: Other chemical products

Publish Date: 2024-10-28

Implement Date: 2024-11-30

Scope

Scope: This document specifies the technical requirements for A-type and X-type molecular sieve activated powders, describes the test methods, stipulates the inspection rules, and provides guidance on marking, labeling, as well as packaging, transportation, and storage. This document applies to molecular sieve activated powders, primarily used in polyurethane products (coatings, adhesives, sealants) as desiccants or defoamers; as additives or aggregates in coatings, paints, resins, and certain adhesives; and as desiccants in hollow glass composite strips, etc. Main technical content: 3. Terminology The following terms and definitions apply to this document: 3.1 Molecular sieve: An inorganic crystalline material with a regular pore structure formed by TO4 tetrahedrons connected via shared vertices. 3.2 Molecular sieve powder: A crystalline aluminosilicate compound with uniform pore size. 3.3 Molecular sieve activated powder: A product obtained by high-temperature roasting and activation of molecular sieve powder. 4. Technical requirements 4.1 Appearance requirements The molecular sieve activated powder should appear as a white powder with uniform color and no visible impurities or clumping. 4.2 Technical requirements The technical requirements for molecular sieve activated powder shall comply with Table 1. 5. Test methods For water and reagents used in this standard, unless otherwise specified in terms of specifications and preparation methods, they shall comply with the provisions of GB/T 6682 for laboratory-grade water and GB/T 603 for reagents. For samples used in this standard, unless otherwise specified in terms of sampling methods, the sampling methods described in GB/T 6678 shall be used. 5.1 Appearance determination by visual inspection. 5.2 Determination of water content in packaging products shall be conducted in accordance with the method specified in GB/T 10504-2017, section 5.9. 5.3 Static water adsorption capacity shall