|
US$229.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 22314-2008: Plastics -- Polyacrylamide -- Determination for residual acrylamide
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 22314-2008 | English | 229 |
Add to Cart
|
3 days [Need to translate]
|
Plastics -- Polyacrylamide -- Determination for residual acrylamide
| Valid |
GB/T 22314-2008
|
PDF similar to GB/T 22314-2008
Basic data | Standard ID | GB/T 22314-2008 (GB/T22314-2008) | | Description (Translated English) | Plastics -- Polyacrylamide -- Determination for residual acrylamide | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G31 | | Classification of International Standard | 83.080 | | Word Count Estimation | 10,117 | | Date of Issue | 2008-08-04 | | Date of Implementation | 2009-04-01 | | Older Standard (superseded by this standard) | GB/T 12007.4-1989 | | Quoted Standard | GB/T 2918-1998 | | Adopted Standard | ISO 3219-1993, MOD | | Regulation (derived from) | National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 requirements coaxial with double cylinder rotating shear rate viscometer viscosity measurement method. This standard applies to the determination of the viscosity of liquid epoxy resin. | GB/T 22314-2008: Plastics -- Polyacrylamide -- Determination for residual acrylamide---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.
Plastics. Polyacrylamide. Determination for residual acrylamide
ICS 83.080
G31
National Standards of People's Republic of China
Replacing GB/T 12007.4-1989
Plastic epoxy resin viscosity measurement method
(ISO 3219.1993, Plastics-Polymers/resinsintheliquidstateoras
rotationalviscometerwithdefinedshearrate, MOD)
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 revised standard adopts ISO 3219.1993 "Plastics --- liquid or emulsion state or dispersion of polymer/resin --- rotary viscosity
Meter at a specified shear rate viscosity determination "(in English).
This standard is based on ISO 3219.1993 re-drafted in order to facilitate comparison with the ISO 3219 standard are listed in this informative Appendix B.
1993 technical differences, and in the text with a single vertical line identification.
This standard and ISO 3219.1993 main technical differences are as follows.
--- Range applies only to liquid epoxy resin;
--- Instrument to remove the cone and plate system;
--- Procedure to do a more detailed explanation.
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 3219.1993 Foreword;
c) increase the national standard foreword;
d) For the ISO 3219.1993 and other international standards referenced in our country is equivalent to using the standard, with reference to our present standard
National standards instead of the corresponding international standards;
e) use of decimal notation. "" instead of the international standard decimal symbol "."
This standard replaces GB/T 12007.4-1989 "Determination of the viscosity epoxy resin."
This standard compared with GB/T 12007.4-1989 The main changes are as follows.
--- Increasing shear rate of a series;
--- Precision instrument made provisions;
--- Increase measured for 3 times;
--- Added two appendices;
--- Increasing the viscosity meter calibration;
--- Increase the accuracy of the thermometer should be 0.05 ℃.
Appendix A of this standard is a normative appendix, Appendix B is an informative annex.
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.
Participated in the drafting of this standard. Bluestar New Chemical Materials Co., Ltd. Wuxi Resin Factory, Anhui Hengyuan Chemical Co., Ltd.
The main drafters of this standard. Wang Yan, Wang Yonggui, Huang Yong, Cheng Zhen Shuo.
This standard replaces the standards previously issued as follows.
--- GB/T 12007.4-1989.
Plastic epoxy resin viscosity measurement method
1 Scope
This standard gives a coaxial having a predetermined shear rate double cylindrical rotary viscometer viscosity method.
This standard applies to the determination of the viscosity of the liquid epoxy resin.
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)
Principle 3
With used with the specified characteristics of the viscometer according to the shear rate and shear stress measurements obtained viscosity liquid sample.
(1) viscosity η is defined by the formula.
η =
γ
(1)
Where.
--- viscosity [eta], in units of Pascal seconds (Pa · s);
[tau] --- shear force unit Pascals (Pa);
γ --- shear rate in second (s-1).
According to the International System of Units (SI) unit of viscosity is Pascal seconds (Pa · s)
1Pa · s = 1N · s/m2
Note 1. Sign and GB 3102.3 Quantities and units of mechanics consistent.
Kwan called Newtonian liquids.
4 Instrument
4.1 rotational viscometer
4.1.1 Measuring System
Measurement system shall include coaxial surfaces of two rigid symmetrical, during which the viscosity of the fluid into the test. Wherein a surface at a constant angular velocity
Degree rotation, while the other surface remain stationary. Measurement system should be determined for each measurement of the shear rate.
Torque measuring device shall be connected to a surface which can be measured so as to overcome the viscous resistance of the fluid torque required.
Suitable for the coaxial cylinder measuring system system.
Size measurement system shall meet the conditions specified in Appendix A, which is designed to ensure that all test measurement types and all common models of the instrument
Weight region having a similar geometry.
4.1.2 basic instrument
Basic instrument should be designed to be able to install alternative rotor and the stator to form a series of predetermined rotational frequency (stepwise or continuously
Change), and the corresponding torque can be measured, and vice versa (ie. generating a predetermined torque and rotational frequency corresponding measurements).
Torque measuring instrument accuracy should be within the full scale count of 2%. Within the normal operating range of the instrument, the instrument precision rotational frequency
|