T/GLCL 0002-2019 Active Group standards

T/GLCL 0002-2019 Needle-punched non-woven filtering material

Publish Date: 2019-12-16 Implement Date: 2019-12-20 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/GLCL 0002-2019

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Other textile products

ICS Name: Other

Publish Date: 2019-12-16

Implement Date: 2019-12-20

Scope

Main technical content: This standard is based on Chapter 8 "Classification and Naming of Filter Media", Chapter 9 "Technical Requirements for Filter Media", and Chapter 10 "Testing Methods for Filter Media" in the national standard "Technical Requirements for Bag Dust Collectors" (GB/T 6719-2009), combined with the market demand and practical experience of the industry, as well as the actual product structure within the industry association. a. The product classification and naming largely follow the provisions of the national standard, with the addition of "classification of filter media by temperature resistance performance". b. The scope of filter material code numbers commonly used in the industry has been simplified, and code numbers for fabric types and surface treatment types have been added. c. Since this standard applies to "nonwoven filter media", the data requirements for "woven filter media" have been removed from the "Technical Requirements for Filter Media". d. Based on production reality, the implementation has been simplified. The CV value (discrepancy rate) in relevant items has been simplified to average allowable deviation and maximum allowable deviation, and the calculation formula is listed. e. In the chapter "Breaking Strength and Elongation at Breakage of Filter Media", the original national standard was too general, resulting in significant discrepancies between implementation and actual practice, which was not conducive to practical operation. Therefore, this standard sets specific requirements for breaking strength and elongation at breakage of filter media with different unit area mass (g/m2) and with or without a base fabric. f. The evaluation rules for the appearance quality of filter media, the inspection items and requirements for filter media at the factory, and the rules for determining the quality of filter media have been added. The above changes and additions exceed the requirements of the national standard, are m