ASTM D7211 Standard Specification for Parts Machined from Polychlorotrifluoroethylene (PCTFE) and Intended for General Use
Данный раздел/документ содержится в продуктах:
- Техэксперт: Машиностроительный комплекс
- Картотека зарубежных и международных стандартов
- ASTM G125 Standard Test Method for Measuring Liquid and Solid Material Fire Limits in Gaseous Oxidants
- ASTM D618 Standard Practice for Conditioning Plastics for Testing
- ASTM F2390 Standard Specification for Poly(Vinyl Chloride) (PVC) Plastic Drain, Waste, and Vent (DWV) Pipe and Fittings Having Post-Industrial Recycle Content
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- 13
- ASTM G125 Standard Test Method for Measuring Liquid and Solid Material Fire Limits in Gaseous Oxidants
- ASTM D618 Standard Practice for Conditioning Plastics for Testing
- ASTM F2390 Standard Specification for Poly(Vinyl Chloride) (PVC) Plastic Drain, Waste, and Vent (DWV) Pipe and Fittings Having Post-Industrial Recycle Content
- ASTM D618 Standard Practice for Conditioning Plastics for Testing
- 13.220
- ASTM G125 Standard Test Method for Measuring Liquid and Solid Material Fire Limits in Gaseous Oxidants
- ASTM D618 Standard Practice for Conditioning Plastics for Testing
- ASTM F2390 Standard Specification for Poly(Vinyl Chloride) (PVC) Plastic Drain, Waste, and Vent (DWV) Pipe and Fittings Having Post-Industrial Recycle Content
- ASTM D618 Standard Practice for Conditioning Plastics for Testing
- 13.220.40
- ASTM G125 Standard Test Method for Measuring Liquid and Solid Material Fire Limits in Gaseous Oxidants
- ASTM D618 Standard Practice for Conditioning Plastics for Testing
- ASTM F2390 Standard Specification for Poly(Vinyl Chloride) (PVC) Plastic Drain, Waste, and Vent (DWV) Pipe and Fittings Having Post-Industrial Recycle Content
- ASTM D618 Standard Practice for Conditioning Plastics for Testing
- ASTM G125 Standard Test Method for Measuring Liquid and Solid Material Fire Limits in Gaseous Oxidants
- ASTM G125 Standard Test Method for Measuring Liquid and Solid Material Fire Limits in Gaseous Oxidants
- ASTM G125 Standard Test Method for Measuring Liquid and Solid Material Fire Limits in Gaseous Oxidants
- 19
- ASTM G125 Standard Test Method for Measuring Liquid and Solid Material Fire Limits in Gaseous Oxidants
- ASTM D618 Standard Practice for Conditioning Plastics for Testing
- ASTM F2390 Standard Specification for Poly(Vinyl Chloride) (PVC) Plastic Drain, Waste, and Vent (DWV) Pipe and Fittings Having Post-Industrial Recycle Content
- ASTM D618 Standard Practice for Conditioning Plastics for Testing
- ASTM G125 Standard Test Method for Measuring Liquid and Solid Material Fire Limits in Gaseous Oxidants
- ASTM F2390 Standard Specification for Poly(Vinyl Chloride) (PVC) Plastic Drain, Waste, and Vent (DWV) Pipe and Fittings Having Post-Industrial Recycle Content
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- ASTM D2122 Standard Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings
- ASTM F1960 Standard Specification for Cold Expansion Fittings with PEX Reinforcing Rings for Use with Cross-linked Polyethylene (PEX) Tubing
- ASTM G125 Standard Test Method for Measuring Liquid and Solid Material Fire Limits in Gaseous Oxidants
- Картотека зарубежных и международных стандартов
ASTM International
Standard Specification for Parts Machined from Polychlorotrifluoroethylene (PCTFE) and Intended for General Use
N D7211
Annotation
This specification is intended to be a means of calling out finished machined parts ready for commercial use.
This specification establishes requirements for parts machined from unplasticized, 100 % polychlorotrifluoroethylene (PCTFE) homopolymers.
This specification does not cover parts machined from PCTFE copolymers, PCTFE film or tape less than 0.25-mm (0.010-in.) thick, or modified PCTFE (containing pigments or plasticizers).
This specification allows for parts containing regrind and recycled material.
The specification does not cover PCTFE parts used in aerospace applications involving storage and handling of oxygen media, air media, inert media, and certain reactive media (specifically ammonia, gaseous hydrogen, and liquid hydrogen), in which dimensional stability, high molecular weight, molecular weight retention, and crystallinity control are important considerations. For aerospace grade, machined PCTFE parts, use Specification D7194.
Application—PCTFE parts covered by this specification are made of 100 % PCTFE resin, free of plasticizers, fillers, or other additives. The parts meet specific physical characteristics appropriate for their end use, and are typically used in applications requiring good electrical properties or resistance to aggressive chemical media. General purpose PCTFE parts include seals, gaskets, valve and pump parts (cryogenic and noncryogenic), translucent tubing, sight glasses, flowmeter tubes, heavy-walled solid pipes and fittings, gears, cams, bearings, laboratory ware, circuit boards, electrical connector covers and switches, radome covers, and a variety of other stock shapes. They are removed and replaced during normal maintenance procedures. The parts also experience static or dynamic mechanical loading, and temperatures ranging from cryogenic to temperatures at or above the glass transition temperature, Tg = 55°C (131°F).
