Standard No.:	GB/T 21331-2008
English Name:	Fluff pulp
Chinese Name:	绒毛浆
Chinese Classification:	Y31    Paper pulp and paperboard
Professional Classification:	GB    National Standard
Source Content Issued by:	AQSIQ; SAC
Issued on:	2008-01-04
Implemented on:	2008-9-1
Status:	superseded
Superseded by:	GB/T 21331-2021
Superseded on:	2022-4-1
Target Language:	English
File Format:	PDF
Word Count:	4000 words
Translation Price(USD):	80.0
Delivery:	via email in 1 business day

1 Scope This Standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of fluff pulp. This standard is applicable to fluff pulp for production of disposable sanitary products. 2 Normative References The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. GB/T 451.2 Paper and Board - Determination of Grammage (GB/T 451.2-2002, eqv ISO 536:1995) GB/T 451.3 Paper and Board - Determination of Thickness (GB/T 451.3-2002, idt ISO 534:1988) GB/T 462 Paper and Board - Determination of Moisture Content (GB/T 462-2003, ISO 287:1985, MOD) GB/T 740 Pulps - Sampling for Testing (GB/T 740-2003, ISO 7213:1991, IDT) GB/T 1539 Paperboard - Determination of Bursting Strength (GB/T 1539-2007, ISO 2759:1983, EQV) GB/T 2828.1 Sampling Procedures for Inspection by Attributes - Part 1: Sampling Schemes Indexed by Acceptance Quality Limit (AQL) for Lot-by-lot Inspection (GB/T 2828.1-2003, ISO 2859-1:1999, IDT) GB/T 7974 Paper, Board and Pulp - Measurement of Brightness - Diff/Geometry (GB/T 7974-2002, neq ISO 2470:1999) GB/T 7979 Pulps - Determination of Dichloromethane Soluble Matter GB/T 10739 Paper, Board and Pulps - Standard Atmosphere for Conditioning and Testing (GB/T 10739-2002, eqv ISO 187:1990) GB/T 10740-2002 Pulp - Estimation of Dirt and Shives (GB/T 10740-2002, eqv ISO 5350:1998) GB 15979 Hygienic Standard for Disposable Sanitary Products 3 Terms and Definitions For the purpose of this standard, the following terms and definitions apply. 3.1 fully-processed pulp fluff pulp subjecting to strong physical or chemical processing, which significantly improves the fluffiness of pulp board

Foreword i 1 Scope 2 Normative References 3 Terms and Definitions 4 Product Classification and Graduation 5 Technical Requirements 6 Test Method 7 Inspection Rules 8 Marking, Packaging, Transportation and Storage Annex A (Normative) Dispersion Method for Fluff Pulp Board Annex B (Normative) Determination of Dry Bulkiness, Water Absorption Time and Water Absorption Capacity of Fluff Pulp