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GB/T 2546.2-2003 English PDF (GBT2546.2-2003)

GB/T 2546.2-2003 English PDF (GBT2546.2-2003)

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GB/T 2546.2-2003: Plastics -- Polypropylene (PP) moulding and extrusion materials -- Part 2: preparation of test specimens and determination of properties

This Part of GB/T 2546 specifies the methods of preparation of test specimens and the test methods to be used in determining the properties of polypropylene (PP) moulding and extrusion materials. Requirements for handling test material and for conditioning both the test material before moulding and the specimens before testing are given here. This Part also specifies the methods and conditions for specimen preparation and properties determination. This Part lists the properties and test methods which are suitable and necessary to characterize PP moulding and extrusion materials.
GB/T 2546.2-2003
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 83.080.20
G 31
Plastics - Polypropylene (PP) Moulding and Extrusion
Materials - Part 2: Preparation of Test Specimens and
Determination of Properties
(ISO 1873-2:1997, MOD)
ISSUED ON: FEBRUARY 10, 2003
IMPLEMENTED ON: JULY 01, 2003
Issued by: General Administration of Quality Supervision, Inspection and Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Preparation of Test Specimens ... 7
4 Conditioning of Test Specimens ... 8
5 Determination of Properties ... 8
Appendix A (Informative) Comparison of Normative References in This Part and ISO 1873-2:1997 ... 12
Foreword
GB/T 2546 Plastics ?€? Polypropylene (PP) Moulding and Extrusion Materials can be divided into the following two parts:
--- Part 1: Designation System and Basis for Specifications;
--- Part 2: Preparation of Test Specimens and Determination of Properties. This Part belongs to Part 2 of GB/T 2546.
This Part modifies and uses ISO 1873-2:1997 Plastics ?€? Polypropylene (PP) Moulding and Extrusion Materials - Part 2: Preparation of Test Specimens and Determination of Properties (English Version) and its Amendment 1 of ISO 1873-2:1997-Amd1:2000. This Part was redrafted according to ISO 1873-2:1997 and its Amendment 1 of ISO 1873-2:1997-Amd1:2000.
Compared with ISO 1873-2:1997, this Part has the major technical changes as follows: a) Add test conditions of 230??C/5kg to ?€?melt mass-flow rate?€? and ?€?melt volume-flow rate?€? in rheological properties of Table 3.
b) Add test item of ?€?moulding shrinkage?€? in in rheological properties of Table 3. c) Some normative references in ISO 1873-2:1997 have been revised; this Part refers to the revised standard contents. See Appendix A for the comparison of standard changes.
Appendix A of this Part is informative.
This Part was proposed by China Petroleum and Chemical Corporation.
This Part shall be under the jurisdiction of Petrochemical Plastic Resin Product Subcommittee of National Technical Committee for Standardization of Plastics (CSBTS/TC 15/SC 1).
Drafting organization of this Part: Beijing Yanshan Petrochemical Industry Co., Ltd. Resin Application Research Institute.
Chief drafting staffs of this Part: Chen Hongyuan, Wang Shuhua, Di Lijing, Wang Xiaoli, and Yang Chunmei.
Plastics - Polypropylene (PP) Moulding
and Extrusion Materials - Part 2: Preparation of
Test Specimens and Determination of Properties
1 Scope
This Part of GB/T 2546 specifies the methods of preparation of test specimens and the test methods to be used in determining the properties of polypropylene (PP) moulding and extrusion materials. Requirements for handling test material and for conditioning both the test material before moulding and the specimens before testing are given here. This Part also specifies the methods and conditions for specimen preparation and properties determination. This Part lists the properties and test methods which are suitable and necessary to characterize PP moulding and extrusion materials. The properties have been selected from the general test methods in ISO 10350-1. Other test methods in wide use for or of particular significance to these moulding and extrusion materials are also included in this Part, as well as include determination of the designatory properties specified in Part 1.
In order to obtain reproducible and comparable test results, it is necessary to use the methods of preparation and conditioning, the specimen dimensions and the test procedures specified herein. Values determined will not necessarily be identical to those obtained using specimens of different dimensions or prepared using different procedures.
2 Normative References
The provisions in following documents become the provisions of this Part through reference in this Part of GB/T 2546. For dated references, the subsequent amendments (excluding corrigendum) or revisions do not apply to this Part, however, parties who reach an agreement based on this Part are encouraged to study if the latest versions of these documents are applicable. For undated references, the latest edition of the referenced document applies.
GB/T 1409-1988 Methods for the Determination of the Permittivity and Dielectric Dissipation Factor of Solid Electrical Insulating Materials at Power, Audio and Radio Frequencies Including Meter Wavelengths (eqv IEC 60250:19691))
GB/T 1410-1989 Methods of Test for Volume Resistivity and Surface Resistivity of Solid Insulating Materials (eqv IEC 60093:1980)
GB/T 1634.1- Plastics ?€? Determination of Temperature of Deflection under Load ?€? Part 1: General Test Method2)
GB/T 1634.2- Plastics ?€? Determination of Temperature of Deflection under Load ?€? Part 2: Plastics and Ebonite3)
GB/T 2918-1998 Plastics - Standard Atmospheres for Conditioning and Testing (idt ISO 291:1997)
GB/T 3682-2000 Determination of the Melt Mass-Flow Rate (MFR) and the Melt Volume-Flow Rate (MVR) of Thermoplastics (idt ISO 1133:1997)
GB/T 4207-1984 Method for Determining the Comparative and the Proof Tracking Indices of Solid Insulating Materials under Moist Conditions (neq IEC 112:1979) GB/T 9341-2000 Plastics - Determination of Flexural Properties (idt ISO 178:1993) GB/T 9352-1988 Plastics - Compression Moulding Test Specimens of
Thermoplastic Materials (eqv ISO 293:1986)
GB/T 17037.1-1997 Injection Moulding of Test Specimens of Thermoplastic Materials - Part 1: General Principles and Moulding of Multipurpose and Bar Test Specimens (idt ISO 294-1:1996)
GB/T 17037.3-2003 Plastics - Injection Moulding of Test Specimens of
Thermoplastic Materials - Part 3: Small Plates (ISO 294-3:2002, IDT)
GB/T 17037.4-2003 Plastic - Injection Moulding of Test Specimens of
Thermoplastic Materials - Part 4: Determination of Moulding Shrinkage (ISO 294- 4:2001, IDT)
ISO 62:1999 Plastics -Determination of Water Absorption
ISO 179-1:2000 Plastics ?€? Determination of Charpy Impact Strength
ISO 527-1:1993 Plastics - Determination of Tensile Properties - Part 1: General Principles
1) Since January 1997, the IEC standard numbers are all indicated by 60000 series. 2) This Standard shall be published soon. The new standard is equivalent to the second edition of ISO 751.
3) This Standard shall be published soon. The new standard is equivalent to the second edition of ISO 752.
ISO 527-1:1993/Cor. 1:1994 Plastics - Determination of Tensile Properties - Part 1: General Principles ?€? Technical Corrigendum 1
ISO 527-2:1993 Plastics - Determination of Tensile Properties - Part 2: Test Conditions for Moulding and Extrusion Plastics
ISO 527-2:1993/Cor. 1:1994 Determination of Tensile Properties - Part 2: Test Conditions for Moulding and Extrusion Plastics ?€? Technical Corrigendum 1 ISO 899-1:1993 Plastics - Determination of Creep Behavior- Part 1: Tensile Creep ISO 1183:1987 Plastics - Methods for Determining the Density and Relative Density of Non-Cellular Plastics
ISO 1628-3:2001 Plastics - Determination of Viscosity Number and Limiting Viscosity Number - Part 3: Polyethylenes and Polypropylenes
ISO 1873-1:1995 Plastics - Polypropylene (PP) Moulding and Extrusion Materials - Part 1: Designation System and Basis for Specifications
ISO 2818:1994 Plastics - Preparation of Test Specimens by Machining
ISO 4589-2:1996 Plastics - Determination of Burning Behavior by Oxygen Index - Part 2: Ambient-Temperature Test
ISO 6603-2:2000 Plastics - Determination of Multiaxial Impact Behavior of Rigid Plastics - Part 2: Instrumented Puncture Test
ISO 8256:1990 Plastics ?€? Determination of Tensile-Impact Strength
ISO 10350-1:1998 Plastics - Acquisition and Presentation of Comparable Single- Point Data4)
ISO 11357-1:1997 Plastics ?€? Differential Scanning Calorimetry (DSC) ?€? Part 1: General Principles5)
ISO 11357-3:1999 Plastics ?€? Differential Scanning Calorimetry (DSC) ?€? Part 3: Determination of Temperature and Enthalpy of Melting and Crystallization6) ISO 11359-1:1999 Plastics - Thermomechanical Analysis (TMA) - Part 1: General Principles
ISO 11359-2:1999 Plastics - Thermomechanical Analysis (TMA) ?€? Part 2:
Determination of Coefficient of Linear Thermal Expansion and Glass Transition 4) National standard equivalent to this Standard shall be published soon. 5) National standard equivalent to this Standard shall be published soon. 6) National standard equivalent to this Standard shall be published soon.

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