Waterblocking materials for telecommunication cable and optical fiber cable - Part 2: Waterblocking yarn
1 Scope
This standard specifies the product classification, technical requirements, test methods, inspection rules as well as marking, packaging, transportation and storage of waterblocking yarn for telecommunication cable and optical fiber cable.
It is applicable to the manufacture, acceptance and use of waterblocking yarn for the core and sheath of telecommunication cable and optical fiber cable.
2 Normative references
The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. At the time of publication, all the editions listed are valid. All standards are subject to revision, and all parties using this standard are encouraged to investigate the possibility of applying the latest editions of the following standards.
GB 191-90 Packaging - Pictorial marking for handling of goods
GB 2828-87 Sampling procedures and tables for lot-by-lot inspection by attributes (Apply to inspection of successive lots or batches)
GB 2829-87 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of stability for productive process)
GB/T 16604-1996 Polyester filament for industry
ISO 2060-1994 Textiles - Yarn from packages - Determination of linear density (mass per unit length) by the skein method
ISO 2062-1993 Textiles - Yarns from packages - Determination of single-end breaking force and elongation at break
ISO 287-1985 Paper and board - Determination of moisture content - Oven-drying method
IEC 216-1990 Guide for the determination of thermal endurance properties of electrical insulating materials
3 Product classification
3.1 Definitions
For the purposes of this standard, the following definitions apply.
Foreword i
1 Scope
2 Normative references
3 Product classification
4 Requirements
5 Test methods
6 Inspection rules
7 Marking, packaging, transportation and storage
Annex A (Informative) Test method for linear density of waterblocking yarn
Annex B (Informative) Test method for swelling velocity of waterblocking yarn
Annex C (Informative) Test method for swelling rate of waterblocking yarn
Annex D (Informative) Test method for long-term swelling rate of waterblocking yarn
Annex E (Informative) Test method for short-term swelling rate of waterblocking yarn
Annex F (Informative) Test method for moisture content of waterblocking yarn
