GB/T 2909-2025 Cotton grey canvas
1 Scope
This document defines the terms and definitions for cotton grey canvas, provides classification and marking, stipulates requirements, inspection rules, marking and packaging, and transportation and storage, and describes corresponding test and inspection methods.
This document is applicable to cotton grey canvas produced by weaving.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values
GB/T 17759 Inspection method for grey fabric surface defects
GB/T 43831 Inspection, marking and packing for grey woven fabric of cotton, man-made fibres and blends
FZ/T 10003 Testing method for canvas
FZ/T 10006 Inspection method for the percentage of nep and trash detect squares of grey fabric
FZ/T 10025 Technical requirement specifications for grey fabric
FZ/T 10026 Testing method for drying mass without size per unit area of grey fabric
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
cotton grey canvas
a thicker woven fabric made of cotton single yarn or ply yarn in the warp and weft directions
4 Classification and marking
The product types, specification classification, and marking of cotton grey canvas are implemented according to GB/T 43831 and FZ/T 10025 based on user requirements.
Contents
Foreword I
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and marking
5 Requirements
6 Methods for test and inspection
7 Inspection rules, marking and packaging
8 Transportation and storage
9 Others
Annex A (Normative) The utilization coefficient of yarn strength
