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GB/T 16582-2008: Plastics -- Determination of melting behaviour (melting temperature or melting range) of semi-crystalline polymers by capillary tube and polarizing-microscope methods
Status: Valid GB/T 16582: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 16582-2008 | English | 154 |
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Plastics -- Determination of melting behaviour (melting temperature or melting range) of semi-crystalline polymers by capillary tube and polarizing-microscope methods
| Valid |
GB/T 16582-2008
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| GB/T 16582-1996 | English | 319 |
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Determination of melting point of semi-crystalline polymers--Capillary tube method
| Obsolete |
GB/T 16582-1996
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PDF similar to GB/T 16582-2008
Basic data | Standard ID | GB/T 16582-2008 (GB/T16582-2008) | | Description (Translated English) | Plastics -- Determination of melting behaviour (melting temperature or melting range) of semi-crystalline polymers by capillary tube and polarizing-microscope methods | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G31 | | Classification of International Standard | 83.080.01 | | Word Count Estimation | 8,837 | | Date of Issue | 2008-08-04 | | Date of Implementation | 2009-04-01 | | Older Standard (superseded by this standard) | GB/T 16582-1996; GB/T 4608-1984 | | Quoted Standard | GB/T 2918-1998 | | Adopted Standard | ISO 3146-2000, IDT | | Regulation (derived from) | National Standard Approval Announcement 2008 No.14 (Total No.127) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the method for determining the melting behavior of partially crystalline polymers by capillary tube and polarizing microscopy. Method A (capillary method > for all crystalline polymers and blends thereof with method B (polarization microscopy) suitable polymeric birefringent crystalline phase, because the polymer will affect the birefringent crystalline regions, the does not apply to contain pigments and/or additives compounding fill material. | GB/T 16582-2008: Plastics -- Determination of melting behaviour (melting temperature or melting range) of semi-crystalline polymers by capillary tube and polarizing-microscope methods
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Plastics. Determination of melting behaviour (melting temperature or melting range) of semi-crystalline polymers by capillary tube and polarizing-microscope methods
ICS 83.080.01
G31
National Standards of People's Republic of China
GB/T 16582-2008/ISO 3146.2000
Replacing GB/T 16582-1996, GB/T 4608-1984
Plastic by Capillary and polarizing microscopy
Partially crystalline polymer melting behavior
(Melting temperature or melting range)
(ISO 3146.2000, IDT)
Posted 2008-08-04 2009-04-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard is identical with ISO 3146.2000 "Plastics --- measured by capillary microscopy and polarizing partially crystalline polymer melt
Behavior (melting temperature or melting range) "(in English).
For ease of use, this standard made the following editorial changes.
a) to the "international standards" be replaced by "this standard";
b) Delete the ISO 3146.2000 Foreword;
c) increase the national standard foreword;
d) the "Normative references" international standards with the corresponding equivalents listed in a chapter using this file in place of national standards;
e) use of decimal notation. "" instead of the international standard decimal symbol "."
This standard replaces GB/T 16582-1996 "partially crystalline polymer melting point Capillary tube method" and GB/T 4608-1984
"Standard Test Method for partially crystalline melting point of the polymer optical method", the GB/T 16582-1996, GB/T 4608-1984 combined, were party
Method A and Method B.
The standard methods A and GB/T 16582-1996 differences are as follows.
--- Increasing the normative references (Chapter 2);
--- Thermometer. scale value 1 ℃ to scale value 0.1 ℃ (4.2.3);
--- Original standard sample loading height. powder sample, sample loading height of about 5mm ~ 10mm, the standard does not provide now.
The standard methods B and GB/T 4608-1984 differences are as follows.
--- Original standard thermometer division is 1 ℃, no division is now standard predetermined value;
--- Powder sample size and sample size. from 1mg ~ 2mg to 2mg ~ 3mg, powder particle size not exceeding 100μm kind of
(5.3.1);
--- Thickness of the film formed by heating a sample. from below 0.05mm to 0.01mm ~ 0.04mm (5.3.1);
--- Increase mold and plastic pellet sample (5.3.2);
--- Increased conditioning (5.3.4);
--- Increased precision (5.5).
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee of plastic (SAC/TC15) centralized.
This standard is drafted by. National Quality Supervision and Inspection Center of synthetic resin, Hangzhou Normal University.
Participated in the drafting of this standard. National Plastic Products Quality Inspection Center (Beijing), Sinopec hospital north of the National Chemical Building Materials Testing Center (Materials
Testing Division), blond Technology Co., Ltd.
Drafters of this standard. Bo Yun Ling, Qiu Yu, Ning Zheng, Jiaqi, Xuxiang Qing, Liu Qixiang.
This standard replaces the standards previously issued as follows.
--- GB/T 4608-1984;
--- GB/T 16582-1996.
GB/T 16582-2008/ISO 3146.2000
Plastic by Capillary and polarizing microscopy
Partially crystalline polymer melting behavior
(Melting temperature or melting range)
1 Scope
This standard specifies the method of melting behavior of crystalline polymers by Capillary and polarizing microscopy method.
Method A (capillary method) is applicable to all crystalline polymers and their compounding matter.
Method B (polarized light microscopy) applicable to the birefringent crystalline phase of the polymer. Because birefringence effects of polymer crystalline regions, the
Does not apply to contain pigments and/or filled with a blend of additives.
Note 1. A method can also evaluate the softening temperature of the non-crystalline solid.
Note 2. The melting temperature measured by different methods usually a few degrees (K) difference.
Note 3. Another method GB/T 19466.3-2004 "plastic differential scanning calorimetry (DSC) - Part 3. melting and crystallization temperature and enthalpy
Determination, "also applies to the determination of crystalline polymers melting behavior.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 2918-1998 standard plastic sample conditioning and environmental tests (idt ISO 291.1997)
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
Crystalline phase and amorphous phase-containing polymer.
3.2
When heated, the crystalline or partly crystalline polymer crystallization characteristics or shape disappearance temperature range.
4 Method A --- capillary method
4.1 Principle
The sample was heated at a controlled rate, measuring the temperature began to significantly change the shape and the crystal phase completely disappeared.
Temperature changes shape as the melting temperature of the sample, the temperature range between the two, is the melting range.
Note. according to the standard or the parties concerned about the consultation, the present method can also be used for non-crystalline material.
4.2 the device (see Figure 1)
4.2.1 melting equipment consists of the following components.
a) a cylindrical metal block, the upper part is hollow and forms a small cavity.
b) a metal plug, with two or more holes, allowing a thermometer and a piece of metal or a plurality of capillaries loaded.
c) means for heating the metal block of the system, e.g., encapsulated in a metal block resistance wire.
d) if the use of electric heating, should regulate power input varistor box.
GB/T 16582-2008/ISO 3146.2000
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