83.080.20 (Thermoplastic materials) 标准查询与下载

ASTM D4101-03b 聚乙烯注塑和挤出材料的标准规范

1.1 This specification covers polypropylene materials suitable for injection molding and extrusion. Polymers consist of homopolymer, copolymers, and elastomer compounded with or without the addition of impact modifiers (ethylene-propylene rubber, polyisobutylene rubber, and butyl rubber), colorants, stabilizers, lubricants, or reinforcements.1.2 This specification allows for the use of those polypropylene materials that can be recycled, reconstituted, and reground, provided that: (1) the requirements as stated in this specification are met, and (2) the material has not been modified in any way to alter its conformance to food contact regulations or similar requirements. The proportions of recycled, reconstituted, and reground material used, as well as the nature and the amount of any contaminant, cannot be practically covered in this specification. It is the responsibility of the supplier and the buyer of recycled, reconstituted, and reground materials to ensure compliance. (See Guide D 5033.)1.3 The values stated in SI units are to be regarded as the standard.Note 18212;The properties included in this specification are those required to identify the compositions covered. There may be other requirements necessary to identify particular characteristics important to specific applications. These will be designated by using the suffixes given in Section 1.1.4 The following safety hazards caveat pertains only to the test methods portion, Section 13, 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 28212;There is no similar or equivalent ISO standard.

Standard Specification for Polypropylene Injection and Extrusion Materials

ASTM D4603-03 用玻璃毛细管粘度计测定聚对苯二甲酸乙二酯特性粘度的标准试验方法

The inherent viscosity is relatable to the composition and molecular weight of a polyester resin. It must be controlled so that the processability and end properties of the resin remain in a desired range.1.1 This test method is for the determination of the inherent viscosity of poly(ethylene terephthalate) (PET) soluble at 0.50 % concentration in a 60/40 phenol/1,1,2,2-tetrachloroethane solution by means of a glass capillary viscometer. Highly crystalline forms of PET that are not soluble in this solvent mixture will require a different procedure.1.2 The inherent viscosity values obtained by this test method are comparable with those obtained using differential viscometry described in Test Method D 5225.1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.4 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. Specific hazards statements are given in Section 8.

Standard Test Method for Determining Inherent Viscosity of Poly(Ethylene Terephthalate) (PET) by Glass Capillary Viscometer

ASTM D6338-03 高交联热塑性硫化产品(HCTPVs)的标准分类系统

1.1 This classification system covers highly crosslinked thermoplastic vulcanizates (HCTPVs) for extrusion, molding and other fabrication methods. HCTPVs are thermoplastic elastomers (TPEs) consisting of two or more polymer systems at least one of which is rubbery and highly (>95 %) crosslinked and at least one of which is thermoplastic, with each system having its own phase. The thermoplastic phase will tend to be continuous and the rubbery phase discontinuous. The high level of crosslinking and ultrafine particle size (ca 1 956;m diameter) of the rubbery phase give rise to properties more closely approaching those of conventional thermoset rubber, when compared to the same thermoplastic/rubbery polymer composition with a lower level (8804;95 %) of crosslinking. The HCTPV polymer compositions may contain fillers, reinforcing agents, plasticizers, resins, antidegradants, colorants and other beneficial constituents. Recycled HCTPVs are not covered in this classification system.1.2 Included in this classification system are the properties necessary to identify the respective compositions. For specialized applications, other requirements may be needed to identify specific characteristics.1.3 As given in IEEE/ASTM SI-10, values in SI units are to be regarded as standard.Note 18212;There is no equivalent ISO standard.1.4 The following safety hazards caveat pertains only to the test methods portion, Section 12, of this classification system.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.

Standard Classification System for Highly Crosslinked Thermoplastic Vulcanizate (HCTPVs)

ASTM D4101-03 聚乙烯注塑和挤出材料的标准规范

1.1 This specification covers propylene plastic materials suitable for injection molding and extrusion. Polymers consist of propylene homopolymer, propylene copolymers, and propylene-elastomer compounded with or without the addition of impact modifiers (ethylene-propylene rubber, polyisobutylene rubber, and butyl rubber), colorants, stabilizers, lubricants, or reinforcements. 1.2 This specification allows for the use of those propylene plastic materials that can be recycled, reconstituted, and reground, provided that: (1) the requirements as stated in this specification are met, and (2) the material has not been modified in any way to alter its conformance to food contact regulations or similar requirements. The proportions of recycled, reconstituted, and reground material used, as well as the nature and the amount of any contaminant, cannot be practically covered in this specification. It is the responsibility of the supplier and the buyer of recycled, reconstituted, and reground materials to ensure compliance. (See Guide D5033.) 1.3 The values stated in SI units are to be regarded as the standard. Note 18212;The properties included in this specification are those required to identify the compositions covered. There may be other requirements necessary to identify particular characteristics important to specific applications. These will be designated by using the suffixes given in Section 1. 1.4 The following safety hazards caveat pertains only to the test methods portion, Section 13, 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 28212;There is no similar or equivalent ISO standard.

Standard Specification for Polypropylene Injection and Extrusion Materials

ASTM D4216-03 硬质聚氯乙烯(PVC)和相关聚氯乙烯(PVC)及氯化聚氯乙烯(CPVC)建筑制品化合物的标准规范

1.1 This specification covers rigid plastic PVC and CPVC Exterior compounds composed of poly(vinyl chloride), chlorinated poly(vinyl chloride), vinyl chloride copolymers or vinyl chloride blends, and the necessary compound ingredients intended for use in making building products. The compounding ingredients may consist of lubricants, stabilizers, nonpoly(vinyl chloride) resin modifiers, colorants or pigments, or both, and inorganic fillers.1.2 This specification is intended to provide classification of base compounds used to manufacture PVC and CPVC exterior building products. Physical properties may be determined by evaluating compounds of any color. Note 18212;Two year weathering studies, without specific requirements for color change and physical property change, are recommended for all colors of new compounds and compounds for new applications to provide the basis for agreement between producer and buyer on the suitability of the compound for the intended application. 1.3 The requirements in this specification are intended for qualification, as well as for quality control of compounds used to manufacture building products. They are not applicable to finished building products. See Specifications D 3679 D 4477, D 4726, and F 964 for requirements for finished products. 1.4 It may be necessary, in special cases, to select specific compounds for unusual applications that require consideration of other properties not covered in this specification. 1.5 The rate of burning test, Test Method D 635, is used in this specification only as a screening test for identification of certain properties of the PVC compound; there is no flammability test or flammability requirement for the compound. 1.6 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.7 The following safety hazards caveat pertains only to the test methods 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 28212;There are no ISO standards covering the primary subject matter of this specification. 1.8 The text of this standard references notes and footnotes, which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of this standard. 1.9 Rigid PVC recycle plastic meeting the requirements of this specification may be usable in some applications. Refer to the specific requirements in the Materials and Manufacture Section of the applicable product standard.

Standard Specification for Rigid Poly (Vinyl Chloride) (PVC) and Related PVC and Chlorinated Poly (Vinyl Chloride) (CPVC) Building Products Compounds

ASTM D5422-03 用螺杆挤压毛细管流变仪测量热塑性塑料性能的标准试验方法

This test method is useful for the characterization of thermoplastics and thermoplastic compounds, in terms of viscosity, or resistance to flow. The data produced by this test method has been found useful in both quality-control testing and compound development. However, direct correlation with factory conditions is not implied. Flow-performance data permits quality control of incoming thermoplastics and thermoplastic compounds because the flow parameters are sensitive to molecular weight and molecular-weight distribution. Therefore, this test method may distinguish differences between lots. The shear viscosity or flow viscosity of thermoplastics and thermoplastic compounds will not only be sensitive to the raw-polymer molecular properties, but will also be affected by the type and amount of filler, additive, plasticizer, or stabilizer, by the type of copolymer blend, and by the addition of other compounding materials. This test method can serve as a quality-control tool for either incoming materials or for in-house quality-assurance checks on production mixing. This test method is useful to the research and development of new products in that the rheological behavior of a yet uncharacterized thermoplastic or thermoplastic compound can be measured and considered for comparative analysis.1.1 This test method covers the use of a screw-extrusion-type capillary rheometer for the measurement of flow properties of thermoplastics and thermoplastic compounds. The measured flow properties, which are obtained through laboratory investigation, may help to describe the material behavior that occurs in factory processing.1.2 Since a screw-type capillary rheometer imparts shear energy to the material during testing, the measurements will usually differ from those obtained with a piston-type capillary rheometer (see Test Method D3835).1.3 Capillary rheometer measurements for thermoplastics and thermoplastic compounds are described in Test Method D3835.1.4 The values stated in SI units are to be regarded as standard.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. Note 1--There is currently no equivalent ISO standard.

Standard Test Method for Measurement of Properties of Thermoplastic Materials by Screw-Extrusion Capillary Rheometer

ASTM D3748-03 高密度硬质泡沫塑料评价用标准实施规范

1.1 This practice covers the basic test procedures for determination of the physical properties and reporting of data for high-density rigid cellular plastics.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 18212;This practice and ISO Standard 9054 are not technically equivalent.

Standard Practice for Evaluating High-Density Rigid Cellular Plastics

ASTM D4101-03a 聚乙烯注塑和挤出材料的标准规范

1.1 This specification covers propylene plastic materials suitable for injection molding and extrusion. Polymers consist of propylene homopolymer, propylene copolymers, and propylene-elastomer compounded with or without the addition of impact modifiers (ethylene-propylene rubber, polyisobutylene rubber, and butyl rubber), colorants, stabilizers, lubricants, or reinforcements. 1.2 This specification allows for the use of those propylene plastic materials that can be recycled, reconstituted, and reground, provided that: (1) the requirements as stated in this specification are met, and (2) the material has not been modified in any way to alter its conformance to food contact regulations or similar requirements. The proportions of recycled, reconstituted, and reground material used, as well as the nature and the amount of any contaminant, cannot be practically covered in this specification. It is the responsibility of the supplier and the buyer of recycled, reconstituted, and reground materials to ensure compliance. (See Guide D5033.) 1.3 The values stated in SI units are to be regarded as the standard. Note 18212;The properties included in this specification are those required to identify the compositions covered. There may be other requirements necessary to identify particular characteristics important to specific applications. These will be designated by using the suffixes given in Section 1. 1.4 The following safety hazards caveat pertains only to the test methods portion, Section 13, 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 28212;There is no similar or equivalent ISO standard.

Standard Specification for Polypropylene Injection and Extrusion Materials

ASTM D3679-03e2 硬质聚氯乙烯挡板标准规范

1.1 This specification establishes requirements and test methods for the materials, dimensions, warp, shrinkage, impact strength, expansion, appearance, and windload resistance of extruded single-wall siding manufactured from rigid (unplasticized) PVC compound. Methods of indicating compliance with this specification are also provided.1.2 Rigid PVC recycled plastic may be used in this product in accordance with the requirements in Section . 1.3 Rigid (unplasticized) PVC soffit is covered in Specification D 4477. 1.4 Siding produced to this specification shall be installed in accordance with Practice D 4756. Reference shall also be made to the manufacturer's installation instructions for the specific product to be installed. Note 18212;Information with regard to siding maintenance shall be obtained from the manufacturer. 1.5 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are for information purposes only. 1.6 The following precautionary caveat pertains to the test method portion only, Section 6, 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 28212;There are no ISO standards covering the primary subject matter of this specification.

Standard Specification for Rigid Poly(Vinyl Chloride) (PVC) Siding

ASTM D3895-03 用差示扫描量热法测定聚烯烃氧化感应时间的标准试验方法

1.1 This test method outlines a procedure for the determination of oxidative-induction time (OIT) of polymeric materials by differential scanning calorimetry (DSC). It is applicable to polyolefin resins that are in a fully stabilized/compounded form. 1.2 The values stated in SI units are to be regarded as the standard. 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. Specific hazards information is given in Section 8. Note 18212;This test method is similar to ISO 11357-6, but not equivalent. ISO procedure provides additional information not supplied by this test method.

Standard Test Method for Oxidative-Induction Time of Polyolefins by Differential Scanning Calorimetry

ASTM D5927-03 基于ISO试验方法的热塑性聚酯注塑和压塑材料的标准规范

1.1 This specification covers thermoplastic polyester materials suitable for molding or extrusion. 1.2 This specification allows for the use of recycled thermoplastic polyester materials provided that the requirements as stated in this specification are met. The proportions of recycled material used, as well as the nature and amount of any contaminant, however, cannot be covered practically in this specification.1.3 The properties included in this specification are those required to identify the compositions covered. There may be other requirements necessary to identify particular characteristics important to specialized applications. These may be specified by using the suffixes as given in Section 5.1.4 This classification system and subsequent line callout (specification) are intended to provide a means of 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 plastic field after careful consideration of the design and performance required of the part, the environment to which it will be exposed, the fabrication process to be used, the costs involved, and the inherent properties of the material other than those covered by 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 hazards caveat pertains only to the test methods 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;This specification is similar to ISO 7792-1:1995 and ISO 7792-2:1988, although the technical content is significantly different.

Standard Specification for Thermoplastic Polyester (TPES) Injection and Extrusion Materials Based on ISO Test Methods

ASTM D3679-03 硬质聚氯乙烯挡板标准规范

1.1 This specification establishes requirements and test methods for the materials, dimensions, warp, shrinkage, impact strength, expansion, appearance, and windload resistance of extruded single-wall siding manufactured from rigid (unplasticized) PVC compound. Methods of indicating compliance with this specification are also provided.1.2 Rigid PVC recycled plastic may be used in this product in accordance with the requirements in Section . 1.3 Rigid (unplasticized) PVC soffit is covered in Specification D 4477. 1.4 Siding produced to this specification shall be installed in accordance with Practice D 4756. Reference shall also be made to the manufacturer's installation instructions for the specific product to be installed. Note 18212;Information with regard to siding maintenance shall be obtained from the manufacturer. 1.5 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are for information purposes only. 1.6 The following precautionary caveat pertains to the test method portion only, Section 6, 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 28212;There are no ISO standards covering the primary subject matter of this specification.

Standard Specification for Rigid Poly(Vinyl Chloride) (PVC) Siding

ASTM D3895-02 用差示扫描量热法测定聚烯烃氧化感应时间的标准试验方法

1.1 This test method outlines a procedure for the determination of oxidative-induction time (OIT) of polymeric materials by differential scanning calorimetry (DSC). It is applicable to polyolefin resins that are in a fully stabilized/compounded form. 1.2 The values stated in SI units are to be regarded as the standard. 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. Specific hazards information is given in Section 8. Note 18212;This test method is similar to ISO 11357-6, but not identical. The temperature used by ISO is 210176;C.

Standard Test Method for Oxidative-Induction Time of Polyolefins by Differential Scanning Calorimetry

ASTM D6835-02 热塑性弹性醚酯模塑和挤制材料的标准分类体系

1.1 This classification system covers segmented block copolyether-ester elastomers suitable for molding and extrusion.1.2 This classification system allows for the use of segmented block copolyether-ester elastomers that are recycled provided that the requirements as stated in this classification system are met. The proportions of recycled material used, as well as the nature and amount of any contaminant, however, cannot be covered practically in this specification.1.3 The properties included in this classification system are those required to identify the compositions covered. There may be other requirements necessary to identify particular characteristics important to specialized applications. These may be specified using the suffixes as given in Section 5.1.4 This classification system and subsequent line callout (specification) are intended to provide a means of 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 plastic 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 classification system.1.5 The following precautionary caveat pertains only to the test methods portion, Section 11, of this classification system. 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 classification system is similar to ISO 14910-1/-2 1997, although the technical content is significantly different.

Standard Classification System for Thermoplastic Elastomer-Ether-Ester Molding and Extrusion Materials (TEEE)

ASTM D3679-02a 硬质聚氯乙烯档板标准规范

1.1 This specification establishes requirements and test methods for the materials, dimensions, warp, shrinkage, impact strength, expansion, appearance, and windload resistance of extruded single-wall siding manufactured from rigid (unplasticized) PVC compound. Methods of indicating compliance with this specification are also provided.1.2 Rigid PVC recycled plastic may be used in this product in accordance with the requirements in Section . 1.3 Rigid (unplasticized) PVC soffit is covered in Specification D 4477. 1.4 Siding produced to this specification shall be installed in accordance with Practice D 4756. Reference shall also be made to the manufacturer's installation instructions for the specific product to be installed. Note 18212;Information with regard to siding maintenance shall be obtained from the manufacturer. 1.5 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are for information purposes only. 1.6 The following precautionary caveat pertains to the test method portion only, Section 6, 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 28212;There are no ISO standards covering the primary subject matter of this specification.

Standard Specification for Rigid Poly(Vinyl Chloride) (PVC) Siding

ASTM D4101-02b 聚乙烯塑料喷射和挤压材料的标准规范

1.1 This specification covers propylene plastic materials suitable for injection molding and extrusion. Polymers consist of propylene homopolymer, propylene copolymers, and propylene-elastomer compounded with or without the addition of impact modifiers (ethylene-propylene rubber, polyisobutylene rubber, and butyl rubber), colorants, stabilizers, lubricants, or reinforcements. 1.2 This specification allows for the use of those propylene plastic materials that can be recycled, reconstituted, and reground, provided that: (1) the requirements as stated in this specification are met, and (2) the material has not been modified in any way to alter its conformance to food contact regulations or similar requirements. The proportions of recycled, reconstituted, and reground material used, as well as the nature and the amount of any contaminant, cannot be practically covered in this specification. It is the responsibility of the supplier and the buyer of recycled, reconstituted, and reground materials to ensure compliance. (See Guide D5033.) 1.3 The values stated in SI units are to be regarded as the standard. Note 18212;The properties included in this specification are those required to identify the compositions covered. There may be other requirements necessary to identify particular characteristics important to specific applications. These will be designated by using the suffixes given in Section 1. 1.4 The following safety hazards caveat pertains only to the test methods portion, Section 13, 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 28212;There is no similar or equivalent ISO standard.

Standard Specification for Polypropylene Injection and Extrusion Materials

ASTM D4101-02 聚乙烯塑料喷射和挤压材料的标准规范

1.1 This specification covers propylene plastic materials suitable for injection molding and extrusion. Polymers consist of propylene homopolymer, propylene copolymers, and propylene-elastomer compounded with or without the addition of impact modifiers (ethylene-propylene rubber, polyisobutylene rubber, and butyl rubber), colorants, stabilizers, lubricants, or reinforcements. 1.2 This specification allows for the use of those propylene plastic materials that can be recycled, reconstituted, and reground, provided that: (1) the requirements as stated in this specification are met, and (2) the material has not been modified in any way to alter its conformance to food contact regulations or similar requirements. The proportions of recycled, reconstituted, and reground material used, as well as the nature and the amount of any contaminant, cannot be practically covered in this specification. It is the responsibility of the supplier and the buyer of recycled, reconstituted, and reground materials to ensure compliance. (See Guide D5033.) 1.3 The values stated in SI units are to be regarded as the standard. Note 18212;The properties included in this specification are those required to identify the compositions covered. There may be other requirements necessary to identify particular characteristics important to specific applications. These will be designated by using the suffixes given in Section 1. 1.4 The following safety hazards caveat pertains only to the test methods portion, Section 13, 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 28212;There is no similar or equivalent ISO standard.

Standard Specification for Polypropylene Injection and Extrusion Materials

ASTM D4101-02a 聚乙烯塑料喷射和挤压材料的标准规范

1.1 This specification covers propylene plastic materials suitable for injection molding and extrusion. Polymers consist of propylene homopolymer, propylene copolymers, and propylene-elastomer compounded with or without the addition of impact modifiers (ethylene-propylene rubber, polyisobutylene rubber, and butyl rubber), colorants, stabilizers, lubricants, or reinforcements. 1.2 This specification allows for the use of those propylene plastic materials that can be recycled, reconstituted, and reground, provided that: (1) the requirements as stated in this specification are met, and (2) the material has not been modified in any way to alter its conformance to food contact regulations or similar requirements. The proportions of recycled, reconstituted, and reground material used, as well as the nature and the amount of any contaminant, cannot be practically covered in this specification. It is the responsibility of the supplier and the buyer of recycled, reconstituted, and reground materials to ensure compliance. (See Guide D5033.) 1.3 The values stated in SI units are to be regarded as the standard. Note 18212;The properties included in this specification are those required to identify the compositions covered. There may be other requirements necessary to identify particular characteristics important to specific applications. These will be designated by using the suffixes given in Section 1. 1.4 The following safety hazards caveat pertains only to the test methods portion, Section 13, 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 28212;There is no similar or equivalent ISO standard.

Standard Specification for Polypropylene Injection and Extrusion Materials

ASTM D4275-02 用气相色谱法测定乙烯和乙烯-乙烯基醋酸酯共聚物的聚合物中丁酸化羟基甲苯的标准试验方法

Separation and identification of stabilizers used in the manufacture of polyethylene are necessary in order to correlate performance properties with polymer composition. The BHT extraction procedure is made effective by the insolubility of the polymer sample in solvents generally used for gas chromatographic analysis.1.1 This test method describes a procedure for the determination of butylated hydroxy toluene (BHT) (2,6-di-t-butyl-4-methyl-hydroxybenzene) in polymers of ethylene and ethylene-vinyl acetate (EVA) copolymers by solvent extraction followed by gas chromatographic analysis. Detection of the compound is achieved by flame ionization, and quantitative analysis is obtained by use of internal or external standards, as described in Practices E 260, E 355, and E 594.1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.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. Specific precautionary statements are given in Section 9.Note 18212;There is no similar or equivalent ISO standard.

Standard Test Method for Determination of Butylated Hydroxy Toluene (BHT) in Polymers of Ethylene and Ethylene-Vinyl Acetate (EVA) Copolymers By Gas Chromatography

ASTM D3641-02 热模塑和挤塑材料的喷射模塑法试样标准规程

It is well known that plastic test specimens molded under different conditions can have significantly different properties. This practice is designed to minimize those differences by establishing operating protocols without being unnecessarily restrictive. Always refer to the ASTM material specification or ISO designation for the material for recommended molding conditions. If not available, consult the material supplier. This practice requires the use of adequate quantities of plastic material to find desirable operating conditions and to make the desired test specimens.1.1 This practice covers the general principles to be followed when injection molding test specimens of thermoplastic molding and extrusion materials. This practice is to be used to obtain uniformity in methods of describing the various steps of the injection molding process and to set up uniform methods of reporting these conditions. The exact conditions required to prepare suitable specimens will vary for each plastic material. Those conditions should become a part of the specification for the material, or be agreed upon between the purchaser and the supplier. Any requirements or recommendations in the material specification which differ from this standard take precedence over those in this standard.1.2 The methodology presented assumes the use of reciprocating screw injection molding machines. 1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.4 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 practice is equivalent to the following parts of ISO 294: Plastics-Injection Moulding of Test Specimens of Thermoplastic Materials; 294-1: Part 1-General Principles and Multipurpose Test Specimens (ISO Type A Mould) and Bars (ISO Type B Mould); ISO 294-2: Part 2-Small Tensile Bars (ISO Type C Mould); ISO 294-3: Part 3-Plates (ISO Type D Moulds).

Standard Practice for Injection Molding Test Specimens of Thermoplastic Molding and Extrusion Materials