|
US$214.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 21989-2008: Plastics -- Poly (vinyl chloride) pastes -- Determination of apparent viscosity using the severs rheometer
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 21989-2008 | English | 214 |
Add to Cart
|
3 days [Need to translate]
|
Plastics -- Poly (vinyl chloride) pastes -- Determination of apparent viscosity using the severs rheometer
| Valid |
GB/T 21989-2008
|
PDF similar to GB/T 21989-2008
Basic data | Standard ID | GB/T 21989-2008 (GB/T21989-2008) | | Description (Translated English) | Plastics -- Poly (vinyl chloride) pastes -- Determination of apparent viscosity using the severs rheometer | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G32 | | Classification of International Standard | 83.080.20 | | Word Count Estimation | 11,144 | | Date of Issue | 2008-06-04 | | Date of Implementation | 2008-12-01 | | Older Standard (superseded by this standard) | GB/T 12004.3-1989 | | Adopted Standard | ISO 4575-2007, IDT | | Regulation (derived from) | National Standard Approval Announcement 2008 No.9 (Total No.122) | | 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 use of Severs rheometer from polyvinyl chloride polyvinyl chloride (PVC) resin and plasticizer plastisol prepared apparent viscosity at high shear rate method. This standard is particularly suitable for the preparation according to GB/T 21991 " plastic test polyvinylchloride (PVC) paste prepared planetary mixer Law" or GB/T 16613 " test polyvinylchloride (PVC) paste prepared disperser Law" "standard plastisol. " | GB/T 21989-2008: Plastics -- Poly (vinyl chloride) pastes -- Determination of apparent viscosity using the severs rheometer
---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. Poly (vinyl chloride) pastes. Determination of apparent viscosity using the severs rheometer
ICS 83.080.20
G32
National Standards of People's Republic of China
GB/T 21989-2008/ISO 4575.2007
Replacing GB/T 12004.3-1989
Determination of apparent viscosity
(ISO 4575.2007, IDT)
Posted 2008-06-04
2008-12-01 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 4575.2007 "Determination of apparent plastic PVC paste with Severs rheometer viscosity" (in English).
For ease of use, this standard made the following editorial changes.
a) "this International Standard" be replaced by "this standard";
b) use a decimal point instead of a decimal comma ",". ",";
c) Remove the preface to the international standards.
This standard replaces GB/T 12004.3-1989 "PVC plastisol apparent viscosity measurement method."
This standard GB/T 12004.3-1989 and main technical differences are as follows.
--- Modify the standard English name;
--- Deleted (chapter 2 of the 1989 edition) chapter "Reference Standards";
--- Modify the "result of the calculation and that" a chapter in the formula representation (1989 edition, Chapter 6; Chapter 5 and Chapter 6 of this edition);
--- Increased (first edition chapter 7) chapter "test report";
--- Added Appendix A "non-Newtonian fluid calculation formula."
Appendix A of this standard is an informative annex.
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee of plastic PVC resin product Club (SAC/TC15/SC7) centralized.
This standard was drafted. Jinxi Chemical Industry Research Institute, Wuhan Xianglong Electric Co., Ltd..
The main drafters of this standard. Lijuan, Zou Chunhua, Hao Jing, Chen Peiyun.
This standard was first published in 1989.
Please note that some of the content of this standard may involve patents. The standard release mechanism should not bear the responsibility to identify these patents.
GB/T 21989-2008/ISO 4575.2007
1 Scope
This standard specifies the use of poly Severs rheometer at a high shear rate of polyvinyl chloride (PVC) resin and plasticizer prepared
Vinyl plastisol apparent viscosity method.
This standard is particularly suitable for press GB/T 21991 "plastic test polyvinylchloride (PVC) paste prepared in a planetary mixer Law" or
GB/T 16613 "test polyvinyl chloride (PVC) paste prepared disperser Law" prepared "standard plastisol."
Principle 2
Plasticized paste sample into the Severs rheometer, and the jacket was adjusted to a predetermined temperature.
Measured under different pressures plastisol flows through the die of the corrected flow rate.
Calculated at a shear rate of each flow rate corresponding to each administration under pressure and apparent viscosity.
Apparent viscosity can also be made to the appropriate function of shear rate. FIG.
3 devices
3.1 Severs rheometer capacity (500 ~ 1000) mL. One of the two basic structures shown in FIG. It consists of the following sections
composition.
3.1.1 measuring cylinder, for example, stainless steel or bronze polished inner wall of the cylinder. It not only can be installed on a perforated base in the hole
You can place a die but also can be fitted with a lid or a pressure source connected to the atmosphere. The entire device should be airtight.
3.1.2 jacket connected to a temperature control system that allows the temperature measuring cylinder contents was maintained at (23 ± 0.5) ℃.
3.1.3 deformation of the die, such as stainless steel or polytetrafluoroethylene (PTFE) is made by a measurement it can be closely mounted to the bottom of the tube
Tube composition. Tube inner and outer walls should be polished. The die is determined by the height and diameter of the pipe. When using this standard test, it requires the use of A, B
Two kinds of the die, the die dimensions given in Table 1.
Table 1 die size in millimeters
A die die size B
Tube radius 1.5 ± 0.05 1.5 ± 0.05
High 45 ± 0.5 22.5 ± 0.5
3.1.4 piston (if required), made of rigid plastic material, having a diameter slightly smaller than the measuring cylinder was used to prevent the paste produced in the case of holes, the gas
Direct flow under pressure through a die (It also allows the use of equipment cleaning simplification). Figure 2 shows a schematic view of the piston.
3.1.5 pressurizing means by compressed nitrogen gas cylinders, buffer tanks and a number of valves with integral pressure gauge, Figure 3 shows a schematic diagram.
3.2 beakers, capacity of about 50mL.
3.3 stopwatch, accurate to 0.1s.
3.4 Balance, accurate to 0.5g.
3.5 thermometer for measuring (23 ± 0.5) ℃ of temperature.
GB/T 21989-2008/ISO 4575.2007
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 21989-2008_English be delivered?Answer: Upon your order, we will start to translate GB/T 21989-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 21989-2008_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 21989-2008_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.
|