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GB/T 35859-2018: Determination of ethylene glycol monoethyl ether insoluble contents in polymer materials for offset printing plates -- Filtering method
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 35859-2018 | English | 119 |
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Determination of ethylene glycol monoethyl ether insoluble contents in polymer materials for offset printing plates -- Filtering method
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GB/T 35859-2018
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Basic data | Standard ID | GB/T 35859-2018 (GB/T35859-2018) | | Description (Translated English) | Determination of ethylene glycol monoethyl ether insoluble contents in polymer materials for offset printing plates -- Filtering method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G80 | | Classification of International Standard | 37.040.20 | | Word Count Estimation | 6,653 | | Date of Issue | 2018-02-06 | | Date of Implementation | 2018-09-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 35859-2018: Determination of ethylene glycol monoethyl ether insoluble contents in polymer materials for offset printing plates -- Filtering method
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Determination of ethylene glycol monoethyl ether insoluble contentsin polymer materials for offset printing plates--Filtering method
ICS 37.040.20
G80
National Standards of People's Republic of China
Ethylene glycol monoethyl ether in polymer for offset printing plates
Determination of insoluble content by filtration
Published on.2018-02-06
2018-09-01 Implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Administration released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed by China Petroleum and Chemical Industry Federation.
This standard is under the jurisdiction of the National Standardization Technical Committee for Digital Imaging Materials and Digital Printing Materials (SAC/TC432).
This standard was drafted by. Lekai Huaguang Printing Technology Co., Ltd.
The main drafters of this standard. Lan Xiaoli, Zhang Tao, Zhang Gang, Huang Jianli, Wang Huaigong, Wang Xiangli, Wang Pan.
Ethylene glycol monoethyl ether in polymer for offset printing plates
Determination of insoluble content by filtration
1 Scope
This standard stipulates the principle, apparatus and reagents for the method of determining the content of ethylene glycol monoethyl ether insolubles in the offset polymer plate by filtration.
Test procedures, calculations and results presentation, and safety precautions.
This standard applies to the determination of the content of insolubles in various ethylene glycol monoethyl ether-soluble polymers used in offset printing plates.
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 3723 General rules for sampling safety of industrial chemical products
GB/T 8170 Representation and Determination of Numerical Rounding Rules and Limit Values
3 Methodology
The polymer sample to be tested was fully dissolved in ethylene glycol monoethyl ether, and then filtered with a solvent filter. The pore size of the filter was 0.45 μm.
After the oil-soluble filter membrane is fully washed insoluble, the insoluble filter is vacuum-dried to a constant mass, and the filtration membrane before and after filtration is weighed.
The mass changes to calculate the content of insolubles in the polymer.
4 Instruments and reagents
4.1 Solvent filters (schematics) See Appendix A.
4.2 Oil-soluble filter membrane. 0.45 μm pore size.
4.3 Glass vacuum dryer.
4.4 Vacuum pump. Vacuum degree is not less than 0.1MPa.
4.5 Electronic Balance. Accuracy 0.1mg.
4.6 electromagnetic stirrer.
4.7 Ethylene glycol monoethyl ether, analytical grade.
5 test steps
5.1 Solvent treatment
Place an oil-soluble filter membrane with a pore size of 0.45 μm on the sintered filter of the solvent filter and filter out enough ethylene glycol monoethyl ether.
Pour into a clean container for use.
5.2 Drying of Filter Membranes
Another oil-soluble filter membrane with a pore size of 0.45 μm was placed in a glass vacuum desiccator, and a vacuum pump was used to pump vacuum at room temperature.
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