標準編號:	GB/T 19635-2024
中文名稱:	棉花 長絨棉
英文名稱:	Cotton—Sea island cotton
中標分類:	B32    纖維作物與產品
行業(yè)分類:	GB    國家標準
ICS分類:	59.060.10 59.060.10    天然纖維 59.060.10
發(fā)布機構:	國家市場監(jiān)督管理總局 國家標準化管理委員會
發(fā)布日期:	2024-3-15
實施日期:	2024-10-1
標準狀態(tài):	valid
替代舊標準:	GB/T 19635-2005 棉花 長絨棉
翻譯語言:	英文
文件格式:	PDF
中文字符數(shù):	17000 字
翻譯價格(元):	1190.0
交付時間:	付款后 1~3 個工作日

Cotton - Sea island cotton 1 Scope This document defines the terms and definitions related to sea island cotton, specifies the quality requirements, inspection rules, inspection certificates, packaging and marking, storage and transportation, and describes the corresponding sampling and inspection methods. This document is applicable to the production, purchase, processing, trade, storage and use of sea island cotton. 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 of the referenced document (including any amendments) applies. GB/T 6102.1 Test method for moisture regain in raw cotton by oven drying GB/T 6102.2 Test method for moisture regain in raw cotton - Electrical resistance meter GB/T 6498 Test method for Micronaire value of cotton fibres GB/T 6499 Test method for percentage of trash content in raw cotton GB 6975 Cotton baling GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values GB/T 13786 Artificial daylighting illumination for cotton classing rooms GB/T 19617 Test method for length of cotton - Hand-measured staple length GB/T 20392 Test method for physical properties of cotton fibers - High volume instruments method GB/T 41690 Quantitative test method for foreign fiber in raw cotton - Manual method 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 grade a comprehensive index representing the quality grade of cotton maturity, color and luster characteristics, processing quality, etc. 3.2 cotton modal grade grade that accounts for 80% or more when inspected by batch with the rest of the grades only adjacent to it 3.3 gross weight sum of the weight of cotton and its packaging materials 3.4 net weight weight after deducting the weight of packaging materials from the gross weight 3.5 conditioned weight weight converted from the actual impurity content and actual moisture regain of cotton to the standard impurity content and conditioned moisture regain 3.6 conditioned lint percentage of seed cotton percentage of the conditioned weight of lint cotton extracted from seed cotton to the weight of corresponding seed cotton 3.7 foreign fiber non-cotton fibers and non-natural color cotton fibers mixed into cotton Note: The foreign fiber types include chemical fiber, hair, silk, hemp, plastic film, plastic rope, dyed thread (rope, cloth pieces), etc. 3.8 the content of foreign fiber in a baled cotton ratio of the weight of foreign fibers picked out from the sample to the weight of the picked sample Note: Expressed in g/t. 3.9 dangerous foreign matters hard and soft matters mixed into cotton Note: Dangerous matters include metals, bricks, stones, foreign fibers, etc. 4 Requirements for quality 4.1 Grade 4.1.1 Grade grading The sea island cotton is classified into five grades, namely Grade 1 to Grade 5, according to the grade conditions. Grade 3 is the standard grade.

Contents Foreword I 1 Scope 2 Normative references 3 Terms and definitions 4 Requirements for quality 5 Sampling 6 Test methods 7 Inspection rules 8 Inspection certificate 9 Packaging and marking 10 Storage and transportation

棉花 長絨棉 1 范圍 本文件界定了長絨棉相關的術語和定義，規(guī)定了質量要求、檢驗規(guī)則、檢驗證書、包裝及標志、儲存與運輸，描述了相應的抽樣和檢驗方法。 本文件適用于長絨棉的生產、收購、加工、貿易、倉儲和使用。 2 規(guī)范性引用文件 下列文件中的內容通過文中的規(guī)范性引用而構成本文件必不可少的條款。其中，注日期的引用文件，僅該日期對應的版本適用于本文件；不注日期的引用文件，其最新版本(包括所有的修改單)適用于本文件。 GB/T 6102.1 原棉回潮率試驗方法 烘箱法 GB/T 6102.2 原棉回潮率試驗方法 電阻法 GB/T 6498 棉纖維馬克隆值試驗方法 GB/T 6499 原棉含雜率試驗方法 GB 6975 棉花包裝 GB/T 8170 數(shù)值修約規(guī)則與極限數(shù)值的表示和判定 GB/T 13786 棉花分級室的模擬晝光照明 GB/T 19617 棉花長度試驗方法 手扯尺量法 GB/T 20392 棉纖維物理性能試驗方法 大容量纖維測試儀法 GB/T 41690 原棉異性纖維定量試驗方法 手工法 3 術語和定義 下列術語和定義適用于本文件。 3.1 品級 grade 表示棉花成熟程度、色澤特征及加工質量等品質等級的綜合性指標。 3.2 主體品級 cotton modal grade 按批檢驗時，占有80%及以上的品級，其余品級僅與其相鄰。 3.3 毛重 gross weight 棉花及其包裝物重量之和。 3.4 凈重 net weight 毛重扣減包裝物重量后的重量。 3.5 公定重量 conditioned weight 凈重按棉花實際含雜率和實際回潮率折算成標準含雜率和公定回潮率后的重量。 3.6 籽棉公定衣分率 conditioned lint percentage of seed cotton 從籽棉上軋出的皮棉公定重量占相應籽棉重量的百分率。 3.7 異性纖維 foreign fiber 混入棉花中的非棉纖維和非本色棉纖維。 注：異性纖維類型如化學纖維、毛發(fā)、絲、麻、塑料膜、塑料繩、染色線(繩、布塊)等。 3.8 成包皮棉異性纖維含量 the content of foreign fiber in a baled cotton 從樣品中挑揀出的異性纖維的重量與被挑揀樣品重量之比。 注：用克每噸(g/t)表示。 3.9 危害性雜物 dangerous foreign matters 混入棉花中的硬雜物和軟雜物。 注：危害性雜物包括金屬、磚石及異性纖維等。 4 質量要求 4.1 品級 4.1.1 品級劃分 根據(jù)長絨棉的品級條件，長絨棉分為5級，即1級～5級。3級為品級標準級。