83.140.99 (Other rubber and plastic products) 标准查询与下载



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One of the fundamental objectives of microstructural examination of manufactured materials, especially plastics and polymers, is to gain a more complete understanding of the relationships between the manufacturing processes, the microstructure and texture of the material, and the product's performance (that is, physical, optical, or mechanical properties, or combination thereof). Under nearly all conditions, the proper selection and preparation of the specimen are of major importance. Because of the wide range of available equipment; physical, chemical, and mechanical properties of materials; and the personal element, specimen preparation is an art based upon scientific principles. However, like metallographic specimen preparation, certain methods, practices, and procedures can be used to routinely produce acceptable quality plastic and polymeric specimens for microstructural examination. Acceptable quality means: The observed microstructure is free of thermal, mechanical, and chemical alterations, artifacts, damage, or defects resulting from the specimen preparation process. A surface finish appropriate for the microscopical techniques to be used. The microstructure is reproducibly displayed for a given specimen. The mounting, sectioning, grinding, and polishing procedures in this guide may introduce thermal, mechanical, and chemical stresses on the material being prepared for microstructural examination. Thus, knowledge of the material's physical, mechanical, and chemical properties is of importance in selecting the most appropriate technique(s) to reveal its true microstructure and to minimize the total number of steps needed to produce high quality polished specimens. The general guidelines presented below will need to be modified for each type of plastic or polymer to be prepared. Table X1.1 presents general procedures for preparing plastics and polymers. Tables X1.2-X1.5 present procedures for preparing four polymers with very different mechanical properties.1.1 This guide covers recommended procedures and guidelines for the preparation of plastic and polymeric specimens for microstructural examination by light and electron microscopy. 1.2 This guide is applicable to most semi-rigid and rigid plastics, including engineering plastics. This guide is also applicable to some non-rigid plastics. 1.3 The procedures and guidelines presented in this guide are those which generally produce satisfactory specimens. This guide does not describe the variations in techniques required to solve individual problems. 1.4 Many detailed descriptions of grinding and polishing of plastics and polymers are available (1-7). 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Guide for Preparation of Plastics and Polymeric Specimens for Microstructural Examination

ICS
83.140.99 (Other rubber and plastic products)
CCS
G31
发布
2004
实施

1.1 This specification covers melt processable molding and extrusion materials of PFA-perfluoro(alkoxy alkane) fluorocarbon resin. The materials are copolymers of TFE-fluorocarbon resins containing perfluoroalkoxy side chains. These materials were formerly the subject of this specification and Specification D 6314.1.2 This specification is intended to provide a means for calling out plastic materials used in the fabrication of end items or parts. It is not intended for the selection of materials. Material selection should be made by those having expertise in the plastics field after careful consideration of the design and the performance required of the part, the environment to which it will be exposed, the fabrication process to be employed, the costs involved, and the inherent properties of the material other than those covered by this specification.1.3 This specification does not cover recycled plastics.1.4 The tests involved are intended to provide information for identifying the materials covered. It is not the function of this specification to provide engineering data for design purposes. Specimens prepared by injection molding or extrusion could yield test results that may vary from the values in this specification.1.5 The values stated in SI units are to be regarded as the standard. The values given in brackets are for information only.1.6 The following precautionary caveat pertains only to the test methods portions, Sections and of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.Note 18212;This specification, ISO 12086-1(1995), and ISO 12086-2(1995) differ in approach or detail. Data obtained using either may not be technically equivalent.

Standard Specification for Perfluoroalkoxy (PFA)-Fluorocarbon Resin Molding and Extrusion Materials

ICS
83.140.99 (Other rubber and plastic products)
CCS
G31
发布
2004
实施

1.1 This specification covers tubing produced from PFA Fluoropolymer resins which are cited in Specification D 3307. This document specifies tubing dimensional tolerances, tensile properties and related electrical properties as noted in the appropriate tables when tested in accordance with the methods cited in this specification. This specification is for virgin material only and does not address recycled material, as it is not appropriate for PFA tubing.Note 18212;Abbreviations are in accordance with Terminology D 1600.Note 28212;There is no similar ISO standard.1.2 The values stated in SI units are to be regarded as the standard. The values given in brackets are for information only.1.3 The following safety hazards caveat pertains only to the test methods portion, Section 7, of this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.

Standard Specification for Perfluoroalkoxy (PFA)-Fluoropolymer Tubing

ICS
83.140.99 (Other rubber and plastic products)
CCS
G33
发布
2003
实施

1.1 This specification covers tubing produced from PFA Fluoropolymer resins which are cited in Specification D3307. This document specifies tubing dimensional tolerances, tensile properties and related electrical properties as noted in the appropriate tables when tested in accordance with the methods cited in this specification. This specification is for virgin material only and does not address recycled material, as it is not appropriate for PFA tubing. Note 1: Abbreviations are in accordance with Terminology D1600. Note 2: There is no known ISO equivalent to this standard. 1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.3 The following safety hazards caveat pertains only to the test methods portion, Section 7, of this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.

Standard Specification for Perfluoroalkoxy &40;PFA&41;-Fluoropolymer Tubing

ICS
83.140.99 (Other rubber and plastic products)
CCS
发布
2003
实施

1.1 This specification covers tubing produced from PFA Fluoropolymer resins which are cited in Specification D 3307. This document specifies tubing dimensional tolerances, tensile properties and related electrical properties as noted in the appropriate tables when tested in accordance with the methods cited in this specification. This specification is for virgin material only and does not address recycled material, as it is not appropriate for PFA tubing. Note 18212;Abbreviations are in accordance with Terminology D 1600. Note 28212;There is no known ISO equivalent to this specification. 1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.3 The following safety hazards caveat pertains only to the test methods portion, Section 7, of this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.

Standard Specification for Perfluoroalkoxy (PFA)-Fluoropolymer Tubing

ICS
83.140.99 (Other rubber and plastic products)
CCS
G33
发布
2003
实施

1.1 This specification covers poly(methyl methacrylate) rods, tubes, and other shapes produced by casting or machining cast blanks. This specification does not apply to heat-formed and molded or extruded parts and shapes, or sections that are made by assembling or joining two or more pieces. Note 18212;The properties included in this specification are those required to identify the types and grades of materials covered. There may be other requirements necessary to identify particular characteristics. 1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Note 28212;There is no known ISO equivalent to this standard.

Standard Specification for Cast Poly(Methyl Methacrylate) Plastic Rods, Tubes, and Shapes

ICS
83.140.99 (Other rubber and plastic products)
CCS
G33
发布
2003
实施

1.1 This specification establishes requirements and methods of test for the material, dimensions, and workmanship, and the physical and electrical properties of molded sheet in minimum thicknesses of 0.794 mm ( 1/32 in.) manufactured from PTFE resin molding materials. 1.2 This specification also establishes requirements for molded basic shapes made from resin molding and extrusion materials. This specification is for products 0.3 mm (12 in.) or less in a dimension parallel to and 12.7 mm (0.5 in.) or greater in the dimension perpendicular to the direction of the applied molding pressure. 1.3 The values stated in SI units are to be regarded as the standard. 1.4 The following precautionary caveat pertains only to the test method portion, Section 7, of this specification. This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Special attention is called to sections 13.2, 13.3, 13.6, 13.8, and A1.

Standard Specification for PTFE Resin Molded Sheet and Molded Basic Shapes

ICS
83.140.99 (Other rubber and plastic products)
CCS
G33
发布
2003
实施

1.1 The purpose of this classification system is to provide a method of adequately identifying PMMA materials using a system consistent with that of Classification System D 4000. It further provides a means for specifying these materials by the use of a simple line callout designation.1.2 This classification system covers poly(methyl methacrylate) molding and extrusion compounds. These compounds are polymers based on methyl methacrylate, and at least 70 % of the polymer shall be polymerized from methyl methacrylate.1.3 The properties in this classification system are those required to identify the compositions covered. There may be other requirements necessary to identify particular characteristics important to specific applications. These shall be described by using the suffixes as given in Section 5.1.4 Acrylic molding and extrusion compounds are used frequently in applications where extreme clarity and the ability to retain that clarity and color under severe weathering and other environmental exposures are of primary significance. While the test specimen properties of this document may be used to evaluate nonvirgin materials, the user should take precautions to ensure that parts made from these materials meet the desired end-use requirements. Accordingly, this specification allows for the use of those acrylic plastic materials that can be recycled, reconstituted, and regrounded provided the following:1.4.1 The requirements as stated in this specification are met,1.4.2 The material has not been modified in any way to alter its conformance to food contact regulations or similar requirements, and1.4.3 The requirements of the particular end-use application are met.1.5 This classification system and subsequent line callout (specification) are not intended for the selection of materials, but only as a means to call out plastic materials to be used for the manufacture of parts. The selection of these materials is to be made by personnel with expertise in the plastics field in which the environment, inherent properties of the materials, performance of the parts, part design, manufacturing process, and economics are considered. Note 18212;This classification system is similar to ISO 8257-1:1987 in title only. The technical content is significantly different.1.6 The values stated in SI units are to be regarded as the standard.1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Classification System for Poly(Methyl Methacrylate) (PMMA) Molding and Extrusion Compounds

ICS
83.140.99 (Other rubber and plastic products)
CCS
G31
发布
2002
实施

1.1 This specification provides for the identification of polyethylene plastics extrusion materials for wire and cable in such a manner that the seller and the purchaser can agree on the acceptability of different commercial lots or shipments. The tests involved in this specification are intended to provide information for identifying materials according to the types, classes, categories, and grades covered. It is not the function of this specification to provide specific engineering data for design purposes.1.2 This specification does not allow for the use of recycled plastics (see Note 3).1.3 The values stated in SI units are to be regarded as the standard.1.4 The following safety hazards caveat pertains only to the test method portion, Section 11, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.Note 18212;No ISO equivalent.Note 28212;This standard has undergone major revision from the reapproval of 1989 and now covers only polyethylene for wire and cable applications. For information regarding molding and extrusion materials, see Specification D 4976. For information regarding plastic pipe materials, see Specification D 3350.Note 38212;See Guide D 5033 for information and definitions related to recycled plastics.

Standard Specification for Polyethylene Plastics Extrusion Materials For Wire and Cable

ICS
83.140.99 (Other rubber and plastic products)
CCS
G33
发布
2002
实施

1.1 This specification covers polytetrafluoroethylene (PTFE) rod and heavy-walled tubing manufactured from the PTFE resin of Specification D 4894 and reprocessed PTFE resin (as defined in Guide D 5033). 1.2 The specification covers rod 200-mm (8-in.) nominal diameter or under and heavy-walled tubing 100-mm outside diameter and with a wall thickness of 1.6 mm (1/16 in.) or greater. These materials must be made wholly from PTFE and produced in accordance with good commercial practice.Note 18212;Although this specification and ISO/DIS 13000-1 (1997) and ISO/DIS 13000-2 (1997) differ in approach or detail, data obtained using either are technically equivalent.1.3 The values stated in SI units, as detailed in IEEE/ASTM SI 10 are to be regarded as the standard. The inch-pound units given in parentheses are provided for information only.1.4 The following precautionary caveat pertains to the test methods portion, Section 12, only of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Specification for Extruded and Compression Molded Polytetrafluoroethylene (PTFE) Rod and Heavy-Walled Tubing

ICS
83.140.99 (Other rubber and plastic products)
CCS
G33
发布
2002
实施

1.1 This specification provides for the identification of polybutylene plastics molding and extrusion materials in such manner that the manufacturer and the purchaser can agree on the acceptability of different lots or shipments. The tests involved in this specification are intended to provide information for identifying materials according to types and categories. It is not the function of this specification to provide specific engineering data for design purposes.1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.Note 1--ISO 8986 Part 1 and 2 resembles this standard in title, but the content is significantly different.1.3 The following safety hazards caveat pertains only to the test methods portion, Section 9, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Specification for Polybutylene (PB) Plastics Molding and Extrusion Materials

ICS
83.140.99 (Other rubber and plastic products)
CCS
G33
发布
2001
实施

1.1 This specification covers requirements and test methods for the material and properties of solid plastic shapes manufactured from UHMW-PE.1.2 The properties included in this specification are those required for the compositions covered and are derived from molded samples or fabricated from sheet, rod and profiles. Requirements necessary to identify particular characteristics important to specialized applications may be described by using the classification system given in Section .1.3 This specification allows for the use of recycled plastics (as defined in Guide D 5033).1.4 The values are stated in SI units and are regarded as the standard in all property tables. For reference purposes, English units are also included in and Table A.1.5 The following precautionary caveat pertains only to the test method portions of this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.Note 18212;There is no ISO equivalent standard.

Standard Specification for Ultra-High-Molecular-Weight Polyethylene (UHMW-PE) Solid Plastic Shapes

ICS
83.140.99 (Other rubber and plastic products)
CCS
G32
发布
2001
实施

1.1 This specification covers polytetrafluoroethylene (PTFE) filled molding compounds made with virgin PTFE resins defined in Specification D 4894, except Types I, IV, V, and VI. Note 18212;This specification can be used as a model for other PTFE compounds having particulate fillers that can survive the sintering temperatures of PTFE as can those listed in this specification. This specification is restricted to virgin PTFE for technical reasons. Recycled material cannot be processed successfully.Note 28212;The properties measured on commercially fabricated parts may differ from the listed values for samples prepared by the procedures given in this specification, depending on part geometry and processing parameters.Note 38212;There is no ISO equivalent to this specification.1.2 The values stated in SI units are to be regarded as standard.1.3 The following statement applies to the test method portion, Section 12, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. See 9.5 and Note 4 for a specific warning statement.

Standard Specification for Filled Compounds of Polytetrafluoroethylene (PTFE) Molding and Extrusion Materials

ICS
83.140.99 (Other rubber and plastic products)
CCS
G32
发布
2001
实施

1.1 This specification covers melt processable molding and extrusion materials of PFA-perfluoro(alkoxy alkane) fluorocarbon resin. The materials are copolymers of TFE-fluorocarbon resins containing perfluoroalkoxy side chains. These materials were formerly the subject of this specification and Specification D 6314.1.2 This specification is intended to provide a means for calling out plastic materials used in the fabrication of end items or parts. It is not intended for the selection of materials. Material selection should be made by those having expertise in the plastics field after careful consideration of the design and the performance required of the part, the environment to which it will be exposed, the fabrication process to be employed, the costs involved, and the inherent properties of the material other than those covered by this specification.1.3 This specification does not cover recycled plastics.1.4 The tests involved are intended to provide information for identifying the materials covered. It is not the function of this specification to provide engineering data for design purposes. Specimens prepared by injection molding or extrusion could yield test results that may vary from the values in this specification.1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.6 The following precautionary caveat pertains only to the test methods portions, Sections and of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.Note 18212;This specification, ISO 12086-1(1995), and ISO 12086-2(1995) differ in approach or detail. Data obtained using either may not be technically equivalent.

Standard Specification for Perfluoroalkoxy (PFA)-Fluorocarbon Resin Molding and Extrusion Materials

ICS
83.140.99 (Other rubber and plastic products)
CCS
G31
发布
2001
实施

1.1 This specification provides for the identification of virgin, unmodified ultra-high-molecular-weight polyethylene (UHMW-PE) plastics molding and extrusion materials. This identification is made in such a manner that the seller and purchaser can agree on the acceptability of different commercial lots or shipments.1.2 It is not intended to differentiate between various molecular weight grades of ultra-high-molecular-weight polyethylene commercially available.1.3 It is not the function of this specification to provide specific engineering data for design purposes.1.4 Ultra-high-molecular-weight polyethylenes, as defined in this specification, are those linear polymers of ethylene which have a relative viscosity of 1.44 or greater, in accordance with the test procedures described herein.1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.6 The following precautionary caveat pertains only to the test method portion. Section 7, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.Note 18212;There is no ISO equivalent specification. However, in ISO 11542-1, a range of viscosity numbers defines the viscosity of UHMW-PE grades. The viscosity numbers are determined in accordance with ISO 1628-3.

Standard Specification for Ultra-High-Molecular-Weight Polyethylene Molding and Extrusion Materials

ICS
83.140.99 (Other rubber and plastic products)
CCS
G32
发布
2001
实施

1.1 This specification provides for the identification of virgin, unmodified ultra-high-molecular-weight polyethylene (UHMW-PE) plastics molding and extrusion materials. This identification is made in such a manner that the seller and purchaser can agree on the acceptability of different commercial lots or shipments.1.2 It is not intended to differentiate between various molecular weight grades of ultra-high-molecular-weight polyethylene commercially available.1.3 It is not the function of this specification to provide specific engineering data for design purposes.1.4 Ultra-high-molecular-weight polyethylenes, as defined in this specification, are those linear polymers of ethylene which have a relative viscosity of 1.44 or greater, in accordance with the test procedures described herein.1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.6 The following precautionary caveat pertains only to the test method portion. Section 7, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.Note 18212;There is no ISO equivalent specification. However, in ISO 11542-1, a range of viscosity numbers defines the viscosity of UHMW-PE grades. The viscosity numbers are determined in accordance with ISO 1628-3.

Standard Specification for Ultra-High-Molecular-Weight Polyethylene Molding and Extrusion Materials

ICS
83.140.99 (Other rubber and plastic products)
CCS
G32
发布
2001
实施

1.1 This specification covers requirements and test methods for the material and properties of solid plastic shapes manufactured from UHMW-PE. 1.2 The properties included in this specification are those required for the compositions covered and are derived from molded samples or fabricated from sheet, rod and profiles. Requirements necessary to identify particular characteristics important to specialized applications may be described by using the classification system given in Section 4. 1.3 This specification allows for the use of recycled plastics (as defined in Guide D 5033). 1.4 The values are stated in SI units and are regarded as the standard in all property tables. For reference purposes, English units are also included in Table S-UHMW-PE and Table A. 1.5 The following precautionary caveat pertains only to the test method portions of this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use. Note 18212;There is no ISO equivalent standard.

Standard Specification for Ultra-High-Molecular-Weight Polyethylene (UHMW-PE) Solid Plastic Shapes

ICS
83.140.99 (Other rubber and plastic products)
CCS
G33
发布
2001
实施

Light that is scattered upon passing through a film or sheet of a material can produce a hazy or smoky field when objects are viewed through the material. Another effect can be veiling glare, as occurs in an automobile windshield when driving into the sun. Although haze measurements are made most commonly by the use of a hazemeter, a spectrophotometer may be used, provided that it meets the geometric and spectral requirements of Section 5. The use of a spectrophotometer for haze measurement of plastics can provide valuable diagnostic data on the origin of the haze,6 and Procedure B is devoted to the use of a spectrophotometer. 4.2.1 Procedure A (hazemeter) test values are normally slightly higher and less variable than Procedure B (spectrophotometer) test values. Regular luminous transmittance is obtained by placing a clear specimen at some distance from the entrance port of the integrating sphere. However, when the specimen is hazy, the total hemispherical luminous transmittance must be measured by placing the specimen at the entrance port of the sphere. The measured total hemispherical luminous transmittance will be greater than the regular luminous transmittance, depending on the optical properties of the sample. With this test method, the specimen is necessarily placed at the entrance port of the sphere in order to measure haze and total hemispherical luminous transmittance. Haze data representative of the material may be obtained by avoiding heterogeneous surface or internal defects not characteristic of the material. Haze and luminous-transmittance data are especially useful for quality control and specification purposes. Before proceeding with this test method, reference should be made to the specification of the material being tested. Any test specimen preparation, conditioning, dimensions, or testing parameters, or combination thereof, covered in the materials specification shall take precedence over those mentioned in this test method. If there are no material specifications, then the default conditions apply.1.1 This test method covers the evaluation of specific light-transmitting and wide-angle-light-scattering properties of planar sections of materials such as essentially transparent plastic. A procedure is provided for the measurement of luminous transmittance and haze. Material having a haze value greater than 30% is considered diffusing and should be tested in accordance with Practice E167. 1.2 The values stated in SI units are to be regarded as the standard. Note 1-For greater discrimination among materials that scatter a high percent of light within a narrow forward angle, such as is the case with abraded transparent plastics, adjust the hazemeter and perform measurements in accordance with Test Method D1044. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Note 2-There is no similar or equivalent ISO standard.

Standard Test Method for Haze and Luminous Transmittance of Transparent Plastics

ICS
83.140.99 (Other rubber and plastic products)
CCS
G31
发布
2000
实施

1.1 This specification covers melt processable molding and extrusion materials of PFA-perfluoro(alkoxy alkane) fluorocarbon resin. The materials are copolymers of TFE-fluorocarbon resins containing perfluoroalkoxy side chains. These materials were formerly the subject of this specification and Specification D 6314.1.2 This specification is intended to provide a means for calling out plastic materials used in the fabrication of end items or parts. It is not intended for the selection of materials. Material selection should be made by those having expertise in the plastics field after careful consideration of the design and the performance required of the part, the environment to which it will be exposed, the fabrication process to be employed, the costs involved, and the inherent properties of the material other than those covered by this specification.1.3 This specification does not cover recycled plastics.1.4 The tests involved are intended to provide information for identifying the materials covered. It is not the function of this specification to provide engineering data for design purposes. Specimens prepared by injection molding or extrusion could yield test results that may vary from the values in this specification.1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.6 The following precautionary caveat pertains only to the test methods portions, Sections and of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.Note 18212;This specification, ISO 12086-1(1995), and ISO 12086-2(1995) differ in approach or detail. Data obtained using either may not be technically equivalent.

Standard Specification for Perfluoroalkoxy (PFA)-Fluorocarbon Resin Molding and Extrusion Materials

ICS
83.140.99 (Other rubber and plastic products)
CCS
G31
发布
2000
实施

1.1 This practice covers the general principles to be followed when injection molding test specimens of thermosetting materials. It is to be used to obtain uniformity in methods of describing the various steps of the injection molding process and in the reporting of those conditions. The exact molding conditions will vary from material to material, and should become part of the material specification or be agreed upon between the purchaser and the supplier.Note 1The utility of this practice has been demonstrated for the molding of thermosetting molding compounds exhibiting lower-viscosity non-Newtonian flow.1.2 The values stated in SI units are to be regarded as standard. The values given in brackets are for information only.This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.1.3 This practice assumes the use of reciprocating screw injection molding machines.Note 2This standard is similar in content (but not technically equivalent) to ISO 10724: 1994(E).

Standard Practice for In-Line Screw-Injection Molding Test Specimens From Thermosetting Compounds

ICS
83.140.99 (Other rubber and plastic products)
CCS
G31
发布
2000
实施



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