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GB/T 31565-2015: Vitreous ang porcelain enamels -- Determination of the edge covering on enamelled steel plate to be used in heat exchangers
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 31565-2015 | English | 174 |
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Vitreous ang porcelain enamels -- Determination of the edge covering on enamelled steel plate to be used in heat exchangers
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GB/T 31565-2015
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PDF similar to GB/T 31565-2015
Basic data | Standard ID | GB/T 31565-2015 (GB/T31565-2015) | | Description (Translated English) | Vitreous ang porcelain enamels -- Determination of the edge covering on enamelled steel plate to be used in heat exchangers | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A29 | | Classification of International Standard | 25.220.50 | | Word Count Estimation | 9,923 | | Date of Issue | 2015-05-15 | | Date of Implementation | 2016-01-01 | | Quoted Standard | ISO 3696; EN 10088-1 | | Adopted Standard | ISO 28723-2008, IDT | | Regulation (derived from) | National Standard Announcement 2015 No. 15 | | 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 test method for the determination of all enamelled steel plate heat exchanger technology enamel edge coverage. This Standard applies to a thickness of 0.5mm ~ 1.5mm enamel plate. This method is not applicable to test current exceeds 3A test. | GB/T 31565-2015: Vitreous ang porcelain enamels -- Determination of the edge covering on enamelled steel plate to be used in heat exchangers
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Vitreous ang porcelain enamels. Determination of the edge coverin g on enamelled steel plate to be used in heat exchangers
ICS 25.220.50
A29
National Standards of People's Republic of China
Determination of the heat exchanger with enamelled steel edge coverage
(ISO 28723.2008, IDT)
Issued on. 2015-05-15
2016-01-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
1 Scope 1
2 Normative references 1
3 Principle 1
4 Reagents and materials 1
5 Apparatus 1
6 Sample 4
7 Test Step 4
The results are shown 4 8
9 Precision 5
10 Test Report 5
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard is identical with ISO 28723.2008 "Determination of enamel steel plate heat exchanger enamel edge coverage."
Correspondence between the consistency of the standards of international documents and normative references of the following documents.
--- GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD)
Please note that some of the content of this standard may involve patents. The standard release mechanism does not assume the responsibility to identify these patents.
The standard proposed by China Machinery Industry Federation.
This standard layer Standardization Technical Committee (SAC/TC57) administered by the National Metal and non-metal cover.
This standard was drafted. Donghua University, the National Optical glass enamels for Quality Supervision and Inspection Center, Wuxi Bakeduer Technology Co.,
Division of New Materials Co., Zhejiang Kelvin.
The main drafters of this standard. Guo Lin, Jiang Weizhong, Zhang Guoxiu, Xu Xiaojian, Li, Xing Han school.
Determination of the heat exchanger with enamelled steel edge coverage
1 Scope
This standard specifies the test method for the determination of all enamelled steel plate heat exchanger technology enamel edge coverage.
This standard applies to the thickness of 0.5mm ~ 1.5mm enamel plate.
This method is not applicable to the test current exceeds 3A tests.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
ISO 3696 for analytical laboratory use specifications and test methods (Waterforanalyticallaboratoryuse-Specification
andtestmethods)
EN10088-1 series stainless steel (Stainlesssteels-Listofstainlesssteels)
Principle 3
The edge of the specimen is immersed in a dielectric solution and then an AC power supply is connected with the specimen, based on the measured current value is calculated
Edge of the sample coverage.
4 Reagents and materials
The test shall use analytical reagent, distilled or deionized water.
4.1 pickling
H2SO4 and by the concentration of the acid wash (7 ± 0.5)% of the mass fraction of (2 ± 1.5) g/L of Fe2 composition, temperature (60 ± 2) ℃.
4.2 Test groove dielectric solution
Trough dielectric solution. comply with ISO 3696 in grade 3 distilled water mass fraction of 5% sodium chloride solution, the temperature
Of (22 ± 3) ℃.
5 Instruments
5.1 Test groove
Trough made of polypropylene, and the vessel was charged with polypropylene center electrode positioning plate, polypropylene center positioning plate for the sample and centered
Secured from the trough bottom 10mm high position.
Arrangement and size of the various components of the test cell are shown in Figure 1, Figure 2 and Figure 3.
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