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GB/T 1632.1-2024: Plastics - Determination of the viscosity of polymers in dilute solution using capillary viscometers - Part 1:GEneral principles
Status: Valid GB/T 1632.1: Evolution and historical versions
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| GB/T 1632.1-2024 | English | 439 |
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Plastics - Determination of the viscosity of polymers in dilute solution using capillary viscometers - Part 1:GEneral principles
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GB/T 1632.1-2024
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| GB/T 1632.1-2008 | English | 354 |
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Plastics -- Determination of the viscosity of polymers in dilute solution using capillary viscometers -- Part 1: General principles
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GB/T 1632.1-2008
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| GB/T 1632-1993 | English | 479 |
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Determination of viscosity number and limiting visco-sity number of polymers in dilute solution
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GB/T 1632-1993
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PDF similar to GB/T 1632.1-2024
Basic data | Standard ID | GB/T 1632.1-2024 (GB/T1632.1-2024) | | Description (Translated English) | Plastics - Determination of the viscosity of polymers in dilute solution using capillary viscometers - Part 1:GEneral principles | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G31 | | Classification of International Standard | 83.080.01 | | Word Count Estimation | 22,290 | | Date of Issue | 2024-12-31 | | Date of Implementation | 2025-07-01 | | Older Standard (superseded by this standard) | GB/T 1632.1-2008 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 1632.1-2024: Plastics - Determination of the viscosity of polymers in dilute solution using capillary viscometers - Part 1:GEneral principles
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 83.080.01
CCSG31
National Standard of the People's Republic of China
Replaces GB/T 1632.1-2008
Plastics Polymers using capillary viscometer
Viscosity of dilute solutions Part 1.General
(ISO 1628-1.2021,MOD)
Released on 2024-12-31
2025-07-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction V
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Principle 3
5 Instruments 4
6 Solution 6
7 Measuring temperature 7
8 Test steps 7
9 Results show 8
10 Test Report 9
Appendix A (Informative) Sources of Error 10
Appendix B (Normative) Cleaning of Instruments 13
Reference 14
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
This document is Part 1 of GB/T 1632 "Plastics - Determination of viscosity of dilute polymer solutions using capillary viscometers".
The following parts have been published.
--- Part 1.General;
--- Part 3.Polyethylene and polypropylene;
--- Part 4.Polycarbonate (PC) molding and extrusion materials;
--- Part 5.Thermoplastic homo- and co-polyesters (TP).
This document replaces GB/T 1632.1-2008 "Plastics - Determination of viscosity of dilute polymer solutions using capillary viscometers - Part 1.General
Compared with GB/T 1632.1-2008, in addition to structural adjustments and editorial changes, the main technical changes are as follows.
--- Deleted some of the applicable scope in the scope to increase operability (see Chapter 1, Chapter 1 of the.2008 edition);
--- Deleted some terms and definitions (see 3.1 of the.2008 edition);
--- Added the viscometer constant of the recommended viscometer (see Table 1 in Chapter 5);
--- Changed the requirements for the constant temperature bath required for the test (see 5.3, 5.3 of the.2008 edition);
--- Changed the requirements for the graduation value of the temperature measuring device within the use range (see 5.4, 5.4 of the.2008 edition);
--- Added factors that require standardization of solution preparation [see 6.1g)];
--- Changed the selection requirements for test temperature (see Chapter 7, Chapter 7 of the.2008 edition);
--- Added general rules for testing solvents and solutions (see 8.1);
--- Changed the Appendix "Sources of Error" to an informative appendix (see Appendix A, Appendix B of the.2008 edition);
--- Deleted the content of instrument calibration in the appendix "Instrument Cleaning" (see Appendix B, Appendix A of the.2008 edition).
This document is modified to adopt ISO 1628-1.2021 "Plastics - Determination of viscosity of dilute polymer solutions using capillary viscometers - Part 1.
General Rules.
The technical differences between this document and ISO 1628-1.2021 and their reasons are as follows.
--- Deleted part of the scope of application to increase operability (see Chapter 1, Chapter 1 of the.2008 edition);
--- Added the logarithmic viscosity symbol "ηln" (see 3.2.4) to adapt to my country's technical conditions;
--- The normative reference GB/T 30514 replaces ISO 3105 (see Chapter 5) to adapt to my country's technical conditions;
--- Changed the dimension of the temperature difference requirement for the constant temperature bath (see 5.3) to increase operability.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China Petroleum and Chemical Industry Federation.
This document is under the jurisdiction of the National Plastics Standardization Technical Committee (SAC/TC15).
This document was drafted by. China Bluestar Chengdu Testing Technology Co., Ltd., Qianshi Standard Technology Service (Suzhou) Co., Ltd., China Bluestar
Chemical Co., Ltd., Kingfa Technology Co., Ltd., Hangzhou Zhongwang Technology Co., Ltd., Sinopec (Beijing) Chemical Research Institute Co., Ltd.
Shan Branch, Wanhua Chemical (Sichuan) Co., Ltd., Hangzhou Zhuoxiang Technology Co., Ltd., Chengde Precision Testing Machine Co., Ltd., Zhejiang World Expo New
Materials Co., Ltd., Sinopec (Beijing) Chemical Research Institute Co., Ltd., Liaocheng University, Anhui Deyuan Cable Group Co., Ltd., Zhejiang Jiu
DRAGON PLASTICS LIMITED.
The main drafters of this document are. Ma Chaoqiang, Lu Ning, Zhu Liangbo, Zheng Wen, Zhu Ansheng, Wang Chaoxian, Mou Guangyin, Lou Jianjun, Wang Xinhua, Tu Dan,
Zhang Zongyin, Teng Mouyong, Tang Jingjing, Zhao Jing, Gu Zilin, Feng Hanxiao, Li Yongquan, Deng Yanxia, Xia Jijia, Qian Chuan, Zhang Ping.
The previous versions of this document and the documents it replaces are as follows.
---First published as GB/T 1632-1979 in 1979, first revised in.1993, second revised in.2008;
---This is the third revision.
Introduction
Different polymer dilute solution viscosity tests have different detailed requirements. Specific methods are more suitable for specific types, states and forms than general rules.
This document provides an overview of these methods. The various methods described in this document have corresponding standards and are used in actual measurement.
On test.
GB/T 1632 "Plastics - Determination of viscosity of dilute polymer solutions using capillary viscometer" is intended to consist of five parts.
--- Part 1.General. The purpose is to specify the general method for determining the concentrated viscosity, intrinsic viscosity and K-value of dilute solutions of organic polymers.
Conditions and standard parameters for viscosity determination.
--- Part 2.Polyvinyl chloride resin. The purpose is to specify the concentrated viscosity (also known as viscosity number) and K value of polyvinyl chloride (PVC) resin
Determine the conditions and establish procedures that are operational, traceable and verifiable.
--- Part 3.Polyethylene and polypropylene. The purpose is to specify the concentrated viscosity (also known as
The method for determining the viscosity number and intrinsic viscosity should be established in an operable, traceable and verifiable procedure.
--- Part 4.Polycarbonate (PC) molding and extrusion materials. The purpose is to specify the viscosity (also known as specific
The determination methods of concentrated viscosity and relative viscosity should be established in a feasible, traceable and verifiable procedure.
--- Part 5.Thermoplastic homopolymer and copolymer polyesters (TP). The purpose is to specify the thermoplastic polyesters in certain specific solvents.
(TP) Method for determining the viscosity of dilute solutions (also expressed as "concentrated viscosity") by establishing an operational, traceable and verifiable procedure.
--- Part 6.Methyl methacrylate polymers. The purpose is to specify the determination of methyl methacrylate polymer molding and extrusion materials
The conditions for determining the viscosity of the dilute solution of the material should be established in an operational, traceable and verifiable procedure.
Plastics Polymers using capillary viscometer
Viscosity of dilute solutions Part 1.General
1 Scope
This document specifies the general conditions for determining the concentrated viscosity, intrinsic viscosity and K value of dilute organic polymer solutions and the standard for viscosity determination.
parameter.
This document can be used as the basis for the determination of the viscosity of various polymer solutions. It is also applicable to the viscosity of polymer solutions for which no specific standards are available.
Determination of.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 30514 Glass capillary kinematic viscometer Specifications and operating instructions (GB/T 30514-2014, ISO 3105.1994,
MOD)
ISO 80000-1 Quantities and units - Part 1.General
ISO 80000-4 Quantities and units - Part 4.Mechanics
3 Terms and definitions
For the purpose of this document, the terms and definitions defined in ISO 80000-1 and ISO 80000-4 and the following apply.
3.1 Terms and definitions applicable to any liquid
3.1.1
Viscosity
The fluid is shearing between two planes, one of which moves within the plane and moves linearly at a uniform speed relative to the other plane.
The viscosity of this fluid is defined according to Newton's equation, see formula (1).
τ = ηγ
(1)
Where.
τ---shear stress, unit is Pascal (Pa);
η---viscosity, unit is Pascal second (Pa·s);
---Velocity gradient or shear rate, in seconds per second (s-1), is dv/dz, where v is the velocity of one plane relative to another, and z is
are the coordinates that are perpendicular to the two planes.
Note 1.The dimension of viscosity is. ML-1T-1.
Note 2.In practical use, it is more convenient to use 10-3Pa·s as the unit.
NOTE 3 The viscosity usually referred to is "Newtonian viscosity", in which case the ratio of shear stress to velocity gradient is constant. In the case of non-Newtonian behavior, i.e.
In the case of polymer solutions, this ratio varies with shear rate. Such a ratio is usually called the "apparent viscosity" at the corresponding shear rate.
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