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GB/T 21774-2008: Coating powders -- Determination of stoving condition
Status: Obsolete
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 21774-2008 | English | 239 |
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Coating powders -- Determination of stoving condition
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GB/T 21774-2008
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Basic data | Standard ID | GB/T 21774-2008 (GB/T21774-2008) | | Description (Translated English) | Coating powders -- Determination of stoving condition | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A80 | | Classification of International Standard | 13.300 | | Word Count Estimation | 6,680 | | Date of Issue | 2008-05-12 | | Date of Implementation | 2008-09-01 | | Quoted Standard | GB/T 3186-2006; GB/T 20777-2006; ISO 1514; ISO 1519; ISO 1520; ISO 2812-1 | | Adopted Standard | DIN 55990 T4-1979, IDT | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 7, 2008 (No. 120 overall) | | 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 provides for the determination of electrostatic powder coating spray as the background baking conditions. | GB/T 21774-2008: Coating powders -- Determination of stoving condition---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.
Coating powders. Determination of stoving condition
ICS 13.300
A80
National Standards of People's Republic of China
Determination of powder coating baking conditions
Posted 2008-05-12
2008-09-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard is equivalent to using the German standard DIN55990. T4. 1979 "Determination of the powder coating curing conditions" (in German).
To facilitate the use of this standard, the following editorial changes.
--- With DIN1623-2 "flat rolled steel products and cold-rolled strip steel sheet Technical delivery conditions for ordinary structural steel" instead
DIN1623 "Part 1. flat steel products, cold rolling strip steel and non-alloy steel, soft quality standards";
--- With DIN12880 "laboratory ovens and incubators electrical equipment" instead DIN50011 "Part 1. The structure of materials testing
Member inspection equipment and incubators definitions and requirements ";
--- With ISO 1519 "Paints and varnishes bending test (the cylinder axis)" instead DIN53152 "paints and varnishes and paint inspection
Varnish material mandrel bend test ";
--- With ISO 2812-1. instead of "Paints and varnishes - Determination of resistance to liquids - Part 1 of liquids other than water immersion method"
DIN53168 (currently in draft version) "paints and varnishes and similar coatings inspection of coating stability against chemicals
Determination ";
--- With GB/T 3186-2006 "Paints, varnishes and raw materials for paints and varnishes - Sampling" (ISO 15528.2000, IDT) instead of
DIN53225 "paint test sample";
--- With GB/T 20777-2006 "inspection and sample preparation Paints and varnishes" (ISO 1513.1992, IDT) instead of
DIN53226 "paint inspection and pre-inspection test sample preparation";
--- With ISO 1514 "Paints and varnishes - Standard panels for" instead DIN53227 "paints and varnishes testing of metallic materials or gases
Making of sample standards ";
--- With ISO 1520 "Paints and varnishes - Cupping test" instead DIN53156 "paint visual assessment and inspection similar coating materials
Price paint and similar coating material depth (in accordance with the Izod test) ";
--- With a decimal point "." Instead of a comma as the decimal point "."
This standard is managed by the National Standardization Technical Committee chemicals dangerous (SAC/TC251) and focal points.
Drafting of this standard. Guangdong CIQ, in the construction of Changzhou coating Chemical Research Institute, Marine Chemicals Research Institute, Sinochem
Chemical Standards Institute, Hubei Exit Inspection and Quarantine.
The main drafters of this standard. Chen Qiang, Qian Ye Miao, Man Mo, Xi Zhang Jun, Chen Gufeng, Bei Yang, Zheng Jianguo, Zhao Ling, Song Qi, Li Qingxiang.
This standard is the first release.
Determination of powder coating baking conditions
1 Scope
The standard method for the determination of powder coatings electrostatically atomizing background baking conditions.
Note. See the definition of powder coatings DIN55945.
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 3186-2006 Paints, varnishes and raw materials for paints and varnishes - Sampling (ISO 15528.2000, IDT)
GB/T 20777-2006 examination and preparation of samples for paints and varnishes (ISO 1513.1992, IDT/ISO 1513Cor1.
1994, IDT)
ISO 1514 Paints and varnishes - Standard panels for
ISO 1519 Paints and varnishes bending test (cylindrical shaft)
ISO 1520 Paints and varnishes - Cupping test
ISO 2812-1 Paints and varnishes - Determination of resistance to liquids - Part 1. In addition to liquids other than water immersion
DIN1623-2 flat rolled steel products and cold-rolled strip steel sheet Technical delivery conditions for ordinary structural steel
DIN12880 laboratory oven and incubator for electrical equipment
DIN50014 climate and climate technology standards
Principle 3
At different temperatures and different test plates holding time, baking powder coating, according to the provisions of their inspection and coating characteristics to obtain a coating should
Baking conditions necessary to achieve the characteristic time. By comparing the test results obtained paint baking conditions to understand the characteristics reaches a predetermined
test results.
4 Instrument
4.1 Oven
With sufficient air circulation oven heating power, in line with DIN12880.
4.2 Determination of the temperature of control device
Types and specifications of the same uncoated steel test used thermocouple test. The oven must be equipped with testing equipment
Meet the requirements of the test plate.
4.3 Stopwatch
Range 60min, accurate to 0.1min.
4.4 Test Sheet
Shall comply with the requirements of ISO 1514, the size can be negotiated. When the control test, press DIN1623-2 with a thickness of 0.8mm
± 0.1mm and degreasing agent cleaned ST1405 steel.
5 Sampling
According to GB/T 3186-2006 sampling, press GB/T 20777-2006 sample preparation.
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