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ASTM D4967-21
Standard Guide for Selecting Materials to Be Used for Insulation, Jacketing, and Strength Components in Fiber-Optic Cables
Přeložit název
NORMA vydána dne 1.3.2021
Informace o normě:
Označení normy: ASTM D4967-21
Datum vydání normy: 1.3.2021
Kód zboží: NS-1024144
Počet stran: 3
Přibližná hmotnost: 9 g (0.02 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Kategorie - podobné normy:
Anotace textu normy ASTM D4967-21 :
Keywords:
acrylates, aramids, fluoroplastics, glass fibers, glass-fibers reinforced plastics, grease and similar materials, low-density, nylon, polybutylene, polycarbonate, polyester tape, polyethylene, polyimide tape, polypropylene, polyurethane, poly(vinyl chloride), polyvinylidene fluoride (PVDF), polyvinylidene fluoride copolymers (PVDF copolymers) , rubber, silicone rubber, steel, thermoplastic elastomer, thermoplastic polyester,
Doplňující informace
| Significance and Use | ||||||||||||||||||||||||||||||||||||||||
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4.1?The lists of components and materials are useful in enhancing the user's understanding of the technology and construction of fiber-optics cables and the development of performance standards for cables. 4.2?This guide is intended for use by all parties involved with fiber optics: materials suppliers, cable manufacturers, and end-users. |
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| 1. Scope | ||||||||||||||||||||||||||||||||||||||||
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1.1?This guide is intended to provide a list of materials commonly used in components that provide insulation, jacketing and strength in fiber-optic cables. Where these materials are covered by ASTM standards, an appropriate reference is made. Due to changing technology, not all materials being used are necessarily listed here. 1.2?This guide does not include materials used in components for optical purposes (optical fiber and its coating) or external metallic armoring (such as for a barrier to rodents). 1.3?This guide offers two general lists of materials: 1.3.1?A subdivision of fiber-optic cable construction into components that are used for insulation, jacketing, or strength, with a generic material classification for specific applications in each component (see Section 5), and 1.3.2?An alphabetical list of the generic material classifications, showing ASTM standards where they exist (see Table 1). 1.4?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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| 2. Referenced Documents | ||||||||||||||||||||||||||||||||||||||||
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