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GB/T 12008.4-2009: Plastics -- Polyether polyols -- Part 4: Determination of sodium and potassium
Status: Valid GB/T 12008.4: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 12008.4-2009 | English | 229 |
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Plastics -- Polyether polyols -- Part 4: Determination of sodium and potassium
| Valid |
GB/T 12008.4-2009
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| GB/T 12008.4-1989 | English | 199 |
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Polyether polyols--Determination of sodium and potassium
| Obsolete |
GB/T 12008.4-1989
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PDF similar to GB/T 12008.4-2009
Basic data | Standard ID | GB/T 12008.4-2009 (GB/T12008.4-2009) | | Description (Translated English) | Plastics -- Polyether polyols -- Part 4: Determination of sodium and potassium | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G31 | | Classification of International Standard | 83.080 | | Word Count Estimation | 10,117 | | Date of Issue | 2009-06-15 | | Date of Implementation | 2010-02-01 | | Older Standard (superseded by this standard) | GB/T 12008.4-1989 | | Quoted Standard | GB/T 602-2002; GB/T 6682-2008 | | Regulation (derived from) | National Standard Approval Announcement 2009 No.8 (Total No.148) | | 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 applies to the sodium and potassium content in 0 ~ 10 mg/kg of various polyols determination of sodium and potassium. | GB/T 12008.4-2009: Plastics -- Polyether polyols -- Part 4: Determination of sodium and potassium---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.Polyrther polyols.Part 4. Determination of sodium and potassium
ICS 83.080
G31
National Standards of People's Republic of China
Replacing GB/T 12008.4-1989
Plastic polyether polyol
Determination of sodium and potassium. Part 4
Posted 2009-06-15
2010-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 12008 "plastic polyether polyol" is divided into seven sections.
--- Part 1. Designation system;
--- Part 2. Specifications;
--- Part 3. Determination of hydroxyl value;
--- Part 4. Determination of sodium and potassium;
--- Part 5. Determination of acid value;
--- Part 6. Determination of the degree of unsaturation;
--- Part 7. Determination of viscosity.
This section GB/T 12008 Part 4, instead of the GB/T 12008.4-1989 "Determination of sodium and potassium in the polyether polyol."
This portion of the GB/T 12008.4-1989 compared to major changes.
--- Change the standard name;
--- Increase the sample quality (1989 version 6.1, this version 7.1);
--- Ash volume increased volume (1989 version 6.4, this version 7.2);
--- Increased the determination of Appendix A, sodium and potassium --- solution method for reference.
Appendix A of this section is an informative annex.
This part is proposed by the China Petroleum and Chemical Industry Association.
This part of the National Standardization Technical Committee of plastic products and plastic resins General Methods Chapter (SAC/TC15/SC4) centralized.
This section is responsible for drafting. Jiangsu Provincial Institute of Chemical Co., Ltd., China Sinopec Assets Management Corporation Shanghai Gaoqiao
Branch.
This section participated in the drafting unit. China Petrochemical Asset Management Corporation Tianjin Petrochemical Company, Jiangsu Zhongshan Chemical Co.
Department, the State Quality Supervision and Inspection Center of synthetic resin.
The main drafters of this section. Liu Rong Lu Wei, Xu Yidong, Zhou Nan skullcap, Qi Li, Duxin Lei, Wang Jiandong.
This part of the standard replaces the previous editions are.
--- GB/T 12008.4-1989.
Plastic polyether polyol
Determination of sodium and potassium. Part 4
1 Scope
1.1 GB/T test method specified in this part of 12008 is applicable to sodium and potassium content of 0 ~ 10mg/kg of various polyols sodium and potassium
Determination. Polyols high sodium and potassium content, you can use one of the following methods or after several improved measurement.
--- Reduce sample weight;
--- Diluted ash solution;
--- Curve extending to a higher concentration.
1.2 part not covered with the use of any associated security issues. Before use, the user has the responsibility to establish appropriate safety and health measures
Shi and determine the scope of regulatory limitations. Special precautions need to be found in Chapter 6.
2 Normative references
The following documents contain provisions which, through reference GB/T 12008 in this section constitute provisions of this section. For dated reference documents
Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section
Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this
section.
GB/T 602-2002 Chemical Reagent Determination of impurities in the preparation of standard solution used
Laboratory use specifications and test methods GB/T 6682-2008 Analysis
Principle 3
After ashing a sample by flame photometer.
4 Instrument
4.1 flame photometer.
4.2 Analytical balance. accurate to 0.1mg.
4.3 polyethylene bottles. 500mL.
4.4 platinum dish.
4.5 thermostat furnace.
4.6 muffle furnace.
4.7 volumetric flask. 50mL.
5 Reagents
Unless otherwise stated, use only analytical reagent. Test water should be consistent with GB/T 6682-2008 in two water specifications.
5.1 Potassium standard solution and standard solution.
According to GB/T 602-2002 Preparation of potassium (0.1mg/mL) standard stock solution;
With 0.1mg/mL standard stock solution was prepared in potassium 1mg/L, 2mg/L, 3mg/L, 5mg/L potassium standard solution, stored in a polyethylene
Bottle.
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