This standard specifies the terms, classification and designation, requirements, test methods, inspection rules, and marking, packaging, transportation and storage of glass fibre filter fabric.
This standard is applicable to medium-alkali continuous glass fibre filter fabric, alkali-free continuous glass fibre filter fabric, medium-alkali bulked glass fibre filter fabric and alkali-free bulked glass fibre filter fabric for dust collection in dry filter units.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to (excluding corrigendum), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the referenced document applies.
GB/T 191 Packaging - Pictorial marking for handling of goods
GB/T 1549-1994 Methods of chemical analysis of sodalime-alumina and borosilicate glass
GB/T 4202-2001 Designation for glass fibres
GB/T 5453-1997 Textiles - Determination of the permeability of fabrics to air
GB/T 7689.2-2001 Reinforcements - Test method for woven fabrics - Part 2: Determination of number of yarns per unit length of warp and weft
GB/T 7689.3-2001 Reinforcements - Test method for woven fabrics - Part 3: Determination of width and length
GB/T 7689.5-2001 Reinforcements - Test method for woven fabrics - Part 5: Determination of tensile breaking force and elongation at break for glass fibre
GB 7742-1987 Textiles; Determination of bursting strength and bursting distension; Diaphragm method
GB/T 9914.3-2001 Test method for reinforcement products - Part 3: Determination of mass per unit area
GB/T 18374 Terminology for reinforcements
3 Terms
For the purposes of this standard, the following terms apply.
3.1 Filter fabric: A kind of processed fabric made of gray fabric through thermal treatment, impregnation, baking, etc., which is used for gas filtering and industrial dust removal.
3.2 Continuous glass fibre filter fabric: A kind of filter fabric in which both warp and weft yarns are made of continuous glass fibre yarns.
3.3 Bulked glass fibre filter fabric: A kind of filter fabric in which warp yarns are made of continuous glass fibre and weft yarns are made of bulked yarns all or partly.
3.4 Permeability: Performance of air flowing through textiles. It is expressed as the rate of air vertically flowing through the specimen under the specified test area, pressure drop and time.
3.5 Rupture strength: The maximum fluid pressure acting on a specimen with a certain area till expanding and rupture.
Foreword i 1 Scope 2 Normative references 3 Terms 4 Classification and designation 5 Requirements 6 Test methods 7 Inspection rules 8 Marking, packaging, transportation and storage
JC/T 768-2002 Glass fibre filter fabric
1 Scope
This standard specifies the terms, classification and designation, requirements, test methods, inspection rules, and marking, packaging, transportation and storage of glass fibre filter fabric.
This standard is applicable to medium-alkali continuous glass fibre filter fabric, alkali-free continuous glass fibre filter fabric, medium-alkali bulked glass fibre filter fabric and alkali-free bulked glass fibre filter fabric for dust collection in dry filter units.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to (excluding corrigendum), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the referenced document applies.
GB/T 191 Packaging - Pictorial marking for handling of goods
GB/T 1549-1994 Methods of chemical analysis of sodalime-alumina and borosilicate glass
GB/T 4202-2001 Designation for glass fibres
GB/T 5453-1997 Textiles - Determination of the permeability of fabrics to air
GB/T 7689.2-2001 Reinforcements - Test method for woven fabrics - Part 2: Determination of number of yarns per unit length of warp and weft
GB/T 7689.3-2001 Reinforcements - Test method for woven fabrics - Part 3: Determination of width and length
GB/T 7689.5-2001 Reinforcements - Test method for woven fabrics - Part 5: Determination of tensile breaking force and elongation at break for glass fibre
GB 7742-1987 Textiles; Determination of bursting strength and bursting distension; Diaphragm method
GB/T 9914.3-2001 Test method for reinforcement products - Part 3: Determination of mass per unit area
GB/T 18374 Terminology for reinforcements
3 Terms
For the purposes of this standard, the following terms apply.
3.1 Filter fabric: A kind of processed fabric made of gray fabric through thermal treatment, impregnation, baking, etc., which is used for gas filtering and industrial dust removal.
3.2 Continuous glass fibre filter fabric: A kind of filter fabric in which both warp and weft yarns are made of continuous glass fibre yarns.
3.3 Bulked glass fibre filter fabric: A kind of filter fabric in which warp yarns are made of continuous glass fibre and weft yarns are made of bulked yarns all or partly.
3.4 Permeability: Performance of air flowing through textiles. It is expressed as the rate of air vertically flowing through the specimen under the specified test area, pressure drop and time.
3.5 Rupture strength: The maximum fluid pressure acting on a specimen with a certain area till expanding and rupture.
Contents of JC/T 768-2002
Foreword i
1 Scope
2 Normative references
3 Terms
4 Classification and designation
5 Requirements
6 Test methods
7 Inspection rules
8 Marking, packaging, transportation and storage
