GB/T 3682.1-2018_English: PDF (GB/T3682.1-2018)
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Plastics -- Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics -- Part 1: Standard method
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Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics
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Test method for melt flow rate of thermoplastics
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Standard ID | GB/T 3682.1-2018 (GB/T3682.1-2018) | Description (Translated English) | Plastics -- Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics -- Part 1: Standard method | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | G31 | Classification of International Standard | 83.080.20 | Word Count Estimation | 30,356 | Date of Issue | 2018-03-15 | Date of Implementation | 2018-10-01 | Drafting Organization | Sinopec Beijing Yanshan Branch Resin Application Research Institute, Zhonglan Chenguang Chemical Research & Design Institute Co., Ltd., Guangzhou Synthetic Materials Research Institute Co., Ltd., Chengde Jinjian Testing Instrument Co., Ltd., Shandong Dauneng Polymer Materials Co., Ltd., China Petroleum Natural Gas Co., Ltd. Petrochemical Research Institute, Shanghai Baidie Pipe Technology Co., Ltd., Foshan Rifeng Enterprise Technology Co., Ltd., Shanghai Cable Research Institute (Mechanical Industry Electrical Material and Special Cable Product Quality Supervision and Inspection Center), Beijing Hua Plastic morning light technology limited liability company | Administrative Organization | National Plastics Standardization Technical Committee General Methods and Products Section (SAC/TC 15/SC 4) | Proposing organization | China Petroleum and Chemical Industry Federation | Issuing agency(ies) | The General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China and the National Standardization Administration of China | Standard ID | GB/T 3682-2000 (GB/T3682-2000) | Description (Translated English) | Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | G31 | Classification of International Standard | 83.080.20 | Word Count Estimation | 12,151 | Date of Issue | 2000-10-27 | Date of Implementation | 2001-05-01 | Older Standard (superseded by this standard) | GB/T 3682-1983 | Quoted Standard | GB/T 1031-1995 | Adopted Standard | ISO 1133-1997; IDT | Drafting Organization | Shanghai Import and Export Commodity Inspection Bureau | Administrative Organization | National Standardization Technical Committee plastic resin plastic products branch | Proposing organization | National Petroleum and Chemical Industry Bureau of the People Republic of China | Issuing agency(ies) | State Quality and Technical Supervision | Summary | This standard specifies: The provisions Determination of thermoplastic melt flow rate (MFR) and melt volume flow rate (MVR) temperature and load conditions methods. Generally, determination of melt flow rate referenced by the standard test conditions material standards. Thermoplastics General test conditions are listed in Appendix A and Appendix B. In comparing filled and unfilled thermoplastics time, melt volume flow rate is useful -. If you know the test temperature melt density, you can use the automatic measuring device for measuring the melt flow rate. This method does not apply to the rheological behavior by hydrolysis and polycondensation or crosslinking influence thermoplastics. | Standard ID | GB/T 3682-1983 (GB/T3682-1983) | Description (Translated English) | Test method for melt flow rate of thermoplastics | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | G31 | Date of Issue | 1983/5/14 |
GB/T 3682.1-2018
Plastics--Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics--Part 1. Standard method
ICS 83.080.20
G31
National Standards of People's Republic of China
Replacing GB/T 3682-2000
Plastic Thermoplastic Melt Mass Flow
Rate (MFR) and melt volume flow rate
Determination of (MVR) Part 1. Standard Methods
Volume-flowrate(MVR)ofthermoplastics-Part 1.Standardmethod
(ISO 1133-1.2011, MOD)
Published by.2018-03-15
2018-10-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Administration released
Foreword
GB/T 3682 "Determination of Melt Mass Flow Rate (MFR) and Melt Volume Flow Rate (MVR) of Plastic Thermoplastics" by
The following two parts are composed.
--- Part 1. Standard methods;
--- Part 2. Test methods for time-temperature history and/or humidity sensitive materials.
This part is Part 1 of GB/T 3682.
This section was drafted in accordance with the rules given in GB/T 1.1-2009.
This Part replaces GB/T 3682-2000 Determination of Mass Flow Rate and Melt Volume Flow Rate of Thermoplastic Melts, and
Compared with GB/T 3682-2000, the main technical changes except editorial modification are as follows.
--- Added a chapter on terms and definitions (Chapter 3), including the following terms and definitions. Melt mass flow rate (3.1), Melt volume flow
Dynamic speed (3.2), load (3.3), preloaded specimen (3.4), time-temperature history (3.5), standard die (3.6), half die (3.7),
Humidity-sensitive plastic (3.8);
--- Modify the requirements of the piston (5.1.3), increased the requirements of the lower edge of the piston head (5.1.3);
--- Modify the temperature tolerance (5.1.4);
--- Increased the preforming device (5.2.1.7);
--- Corrected the accuracy requirement for the cut-off time (5.2.2.2);
--- Modify the cut-off interval (8.3);
--- Increased expression of MFR results (8.5.3) and expression of MVR results (9.6.3) when using the half-mouth model test;
--- Increased minimum piston displacement requirements (9.3);
--- Modify the test conditions for the determination of MFR and MVR (Appendix A);
--- Added information on the MFR and MVR test conditions specified in the relevant material standards (Appendix B);
--- Increased the use of compaction method for the preforming of the device and steps (Appendix C);
--- Added examples of precision data for polypropylene obtained from multiple laboratory tests MFR and MVR listed in international standards (attached
Record D).
This section uses the redrafted method to modify the ISO 1133-1.2011 "plastic thermoplastic melt flow rate (MFR)
And Measurement of Melt Volume Flow Rate (MVR) Part 1. Standard Methods.
The main technical differences between this part and ISO 1133-1.2011 and its reasons are as follows.
--- With regard to normative references, this standard has made adjustments with technical differences to adapt to China's technical conditions and adjust the situation.
The focus is reflected in Chapter 2, “Normative References,” and the specific adjustments are as follows.
● Replaced ISO 4287 with GB/T 3505-2009 equivalent to international standards;
● Replaced ISO 1133-2 with GB/T 3682.2-2018 modified to adopt international standards;
● Replaced ISO 6507-1 with GB/T 4340.1-2009 modified to adopt international standards.
--- Increased precision of the test method (Chapter 11) to make the implementation of the standard more instructive.
This section is consistent with the standard structure of ISO 1133-1.2011, and the following changes have been made in the editing.
--- Numbered formulas;
--- The contents of the selection test temperature and nominal load in the table of Appendix A are changed to the second paragraph of Appendix A;
--- Appendix B lists the MFR and MVR test conditions and codes specified in the relevant standards for thermoplastics, and gives the use of
Instructions.
This part is proposed by China Petroleum and Chemical Industry Federation.
This part is under the jurisdiction of the General Methods and Products Section of the National Plastics Standardization Technical Committee (SAC/TC15/SC4).
This section mainly drafted by. Sinopec Beijing Yanshan Branch Resin Application Research Institute, China Blue Chenguang Chemical Research and Design Institute Co., Ltd.
Division, Guangzhou Synthetic Materials Research Institute Co., Ltd., Chengde Jinjian Testing Instrument Co., Ltd., Shandong Daun Polymer Materials Co., Ltd.,
China National Petroleum Corporation Petrochemical Research Institute, Shanghai Baidie Pipe Technology Co., Ltd., Foshan Rifeng Enterprise Technology
Co., Ltd., Shanghai Cable Research Institute (Machinery Industry Electrical Material and Special Cable Product Quality Supervision and Inspection Center), Beijing Huasu Chenguang Technology Co., Ltd.
limited liability company.
The main drafters of this section. Chen Hongyuan, Chen Minjian, Ren Yufeng, Wang Haojiang, Zheng Huiqin, Zhao Lei, Guo Yi, Chai Gang, Peng Xiaoxuan, Zhang Yaoyue,
Zhang Jing, Liu Huansheng.
The previous editions of the standards replaced by this section are.
--- GB/T 3682-2000, GB/T 3682-1983.
introduction
This section is recommended for stable materials that are insensitive to time-temperature history in melt flow rate determination.
Rheological behavior Materials that are sensitive to the test time-temperature history, such as materials that degrade during testing, are recommended to use in accordance with ISO /IEC 14598-2.
Note. When GB/T 3682 parts are released, there is no evidence to show that using GB/T 3682.2 to test stability materials is more accurate than using this part of the test results.
better.
Plastic Thermoplastic Melt Mass Flow
Rate (MFR) and melt volume flow rate
Determination of (MVR) Part 1. Standard Methods
Warning - Persons using various parts of GB/T 3682 should have practical experience in regular laboratory work. Part of GB/T 3682
Points do not indicate all possible security issues. Users have the responsibility to take appropriate safety and health measures and ensure compliance with relevant national laws
Regulatory conditions.
1 Scope
This part of GB/T 3682 specifies the determination of the mass flow rate of thermoplastic melts under specified temperature and load conditions.
(MFR) and melt volume flow rate (MVR) methods. Method A is a mass measurement method, and method B is a displacement measurement method. usually,
Thermoplastics Materials Standards This standard specifies the test conditions for determining the melt flow rate. Thermoplastics are listed in Appendix A
Used test conditions.
The melt volume flow rate is particularly suitable for the comparison of filled and unfilled thermoplastics, as well as for different fill levels of filler materials.
Compare. If the melt density of the material at the test temperature is known, the MFR can be determined from the MVR measurement and vice versa.
This section can also be used for thermoplastics whose rheological behavior is affected by hydrolysis (chain scission), polycondensation and cross-linking, but only if these effects and
The repeatability and reproducibility of the test results apply only when they are within an acceptable range.
This section does not apply to materials whose rheological behavior is significantly affected during the test. In these cases, GB/T 3682.2 can be used.
Note. The shear rate in this section is much smaller than the shear rate used in the processing under normal conditions, so the various thermoplastic plastics obtained in this section
Material data does not necessarily correlate with the performance exhibited during processing. The methods A and B specified in this part are mainly used for quality control.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 3505-2009 Geometrical Product Specifications (GPS) Surface Structure Profile Method Terms, Definitions, and Surface Structure Parameters
(ISO 4287.1997, IDT)
GB/T 3682.2-2018 Determination of mass flow rate and melt volume flow rate of plastic thermoplastics, part 2
Points. Test Method for Time-Temperature History and/or Humidity Sensitive Materials (ISO 1133-2.2011, MOD)
GB/T 4340.1-2009 Vickers hardness test for metallic materials - Part 1. Test method (ISO 6507-1, MOD)
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Melt mass flow rate meltmass-flowrate
MFR
The extrusion rate of the molten resin through a die of a specified length and internal diameter under conditions of specified temperature, load and piston position. With regulations
The mass of the time extrusion is taken as the mass flow rate of the melt in grams per 10 minutes (g/10 min).
Note. The International System of Units (SI) allows the use of dg/min and specifies 1g/10min=1dg/min.
......
GB/T 3682-2000
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 83.080.20
G 31
idt ISO 1133.1997
Determination of the melt mass-flow rate (MFR) and
the melt volume-flow rate (MVR) of thermoplastics
ISSUED ON. OCTOBER 27, 2000
IMPLEMENTED ON. MAY 01, 2001
Issued by. State Bureau of Quality Technical Supervision
Table of Contents
Foreword ... 3
ISO Foreword ... 5
1 Scope ... 6
2 Normative references ... 6
3 Apparatus ... 6
4 Test sample ... 10
5 Temperature calibration, cleaning and maintenance of the apparatus
... 10
6 Procedure A ... 11
7 Procedure B ... 13
8 Flow rate ratio (FRR) ... 15
9 Precision ... 16
10 Test report ... 16
Annex A (Normative) Test conditions for melt flow rate determination .. 18
Annex B (Informative) Conditions in use for the designation of standards
for thermoplastic materials ... 19
Foreword
This Standard is identical to International Standard ISO 1133.1997 Plastics -
Determination of the Melt Mass-flow Rate (MFR) and the Melt Volume-flow Rate (MVR) of
Thermoplastics. This Standard is identical to ISO 1133.1997 in technical aspects, and has
the following differences in edition.
- The normative references of this Standard is less than that specified in ISO
1133.1997; however, the contents not listed in this Standard do not affect the
implementation of this standard;
- There have some editorial changes according to relevant regulations of China.
The previous edition of this Standard is national standard GB/T 3682-1983 Determination
of the Melt Flow Rate of Thermoplastics. Compared with the previous edition, there exist
main changes as follows.
- The name of the Standard is changed;
- “Normative references” are added;
- The test conditions are made to be “informative annex”; and additions and deletions
are made;
- The automatic testing of the melt mass-flow rate of and the determination of the melt
volume-flow rate of thermoplastics are added.
This Standard replaces GB/T 3682-1983 from the implementation date of this Standard.
Annex A of this Standard is normative; annex B is informative.
This Standard was proposed by the National Petroleum and Chemical Industry Bureau of
the People’s Republic of China.
This Standard shall be under the jurisdiction of the Sub-committee on Plastic Resin
Products of the National Technical Committee 15 on Plastic of Standardization
Administration of China (TC 15/SC 4).
Responsible drafting organizations of this Standard. Shanghai Entry-Exit Inspection and
Quarantine Bureau, Shanghai Research Institute of Plastics.
Participating drafting organizations of this standard. Chenguang Chemical Institute,
Yanshan Resin Application Institute, Beijing, Sinopec Shanghai Petrochemical Co., Ltd.
Plastics Factory, Jilin University Science Education Instrument Factory, and Chengde
Tester Co., Ltd.
Main drafters of this Standard. Li Jianghai, Shen Hong, Shu Xingtao, Luo Taiwei, Jiang
Haining, Tai Yuxing, and Zhao Lingyun.
This Standard was issued in 1983 for first-time.
Determination of the melt mass-flow rate (MFR) and
the melt volume-flow rate (MVR) of thermoplastics
1 Scope
1.1 This Standard specifies a method for the determination of the melt mass-flow rate
(MFR) and the melt volume-flow rate (MVR) of thermoplastic materials under specified
conditions of temperature and load. Normally, the test conditions for measurement of melt
flow rate are specified in the material standard with a reference to this Standard. The test
conditions normally used for thermoplastics are listed in annexes A and B. The melt
volume-flow rate will normally be found useful when comparing filled and unfilled
thermoplastics. The melt flow rate can now be determined by automatic measurement
provided the melt density at the test temperature is known.
This method is not applicable to thermoplastics for which the rheological behaviour is
affected by phenomena such as hydrolysis, condensation or crosslinking.
1.2 The melt mass-flow rate and melt volume-flow rate of thermoplastics are dependent
on the rate of shear. The rates of shear in this test are much smaller than those used
under normal conditions of fabrication, and therefore data obtained by this method for
various thermoplastics may not always correlate with their behaviour in actual use. Both
methods are useful in quality control.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute
provisions of this Standard. At the time of publication, the editions indicated were valid. All
standards are subject to revision, and parties to agreements based on this Standard are
encouraged to investigate the possibility of applying the most recent editions of the
standards indicated below.
GB/T 1031-1995 Surface roughness parameters and their values (neq ISO 468.1982)
3 Apparatus
3.1 Basic apparatus
3.1.1 The apparatus is basically an extrusion plastometer operating at a fixed
temperature. The general design is as shown in figure 1. The thermoplastic material,
which is contained in a vertical cylinder, is extruded through a die by a loaded piston. The
Annex B
(Informative)
Conditions in use for the designation of standards for thermoplastic materials
Table B.1 indicates test conditions that are currently specified in relevant standards. Other
test conditions not listed here may be used, if necessary, for a particular material.
Table B.1
Materials Conditions (code letter) Test temperature, θ, °C
Nominal load (combined),
mnom, kg
PS H 200 5.00
PE
PE
PE
PE
2.16
0.325
21.60
5.00
PP M 230 2.16
ABS U 220 10.00
PS-1 H 200 5.00
E/VAC
E/VAC
E/VAC
2.16
2.16
0.325
SAN U 220 10.00
ASA, ACS, AES U 220 10.00
PC W 300 1.20
PMMA N 230 3.80
PB
PB
2.16
10.00
POM D 190 2.16
MABS U 220 10.00
......
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