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GB/T 21782.10-2008 English PDF

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GB/T 21782.10-2008: Coating powders -- Part 10: Determination of deposition efficiency
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GB/T 21782.10-2008English114 Add to Cart 3 days [Need to translate] Coating powders -- Part 10: Determination of deposition efficiency Valid GB/T 21782.10-2008

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Basic data

Standard ID GB/T 21782.10-2008 (GB/T21782.10-2008)
Description (Translated English) Coating powders -- Part 10: Determination of deposition efficiency
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard A80
Classification of International Standard 13.300
Word Count Estimation 6,633
Date of Issue 2008-05-12
Date of Implementation 2008-09-01
Quoted Standard ISO 8130-9-1992
Adopted Standard ISO 8130-10-1998, IDT
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 standard conditions using electrostatic powder coating spray gun on the target tube, the standard target tube powder deposited on the actual method of measuring the mass fraction. This method is applicable to the use of corona points or friction charged for the construction of powder coatings. This method can be used the same as or identical to the powder spray gun hereinafter different spray powder deposition efficiency. This method should only be used in powder or spray continuous assessment of the comparison, because the impact of environment and equipment are largely with time and a significant change in location. The results of this method depends on the powder the following properties: a) chemical composition, b) density, c) the particle size distribution, d) the particle shape, e) mixtures thereof, in the air flow, f) water. Results are dependent on the test conditions, which comprises: a) generated by the spray gun shape, b) spray air pressure, c) spray voltage, d) spray polarity, e) air humidity.

GB/T 21782.10-2008: Coating powders -- Part 10: Determination of deposition efficiency

---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 Part 10. Determination of deposition efficiency ICS 13.300 A80 National Standards of People's Republic of China GB/T 21782.10-2008/ISO 8130-10.1998 Powder Coatings Part 10. Determination of deposition efficiency (ISO 8130-10.1998, IDT) 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

GB/T 21782 "powder coating" is divided into 14 parts, the structure and corresponding international standards are as follows. --- Part 1. Determination of particle size distribution by sieving (ISO 8130-1.1992, IDT); --- Part 2. Determination of density (Arbitration Act) compare the proportion of gas meter method (ISO 8130-2.1992, IDT); --- Part 3. Determination of liquid displacement pycnometer density (ISO 8130-3.1992, IDT); --- Part 4. Calculation of lower explosive limit (ISO 8130-4.1992, IDT); --- Part 5. Powder/air mixture Determination of flow characteristics (ISO 8130-5.1992, IDT); Measured at a given temperature thermosetting powder coating of gel time (ISO 8130-6..1992, IDT) --- Part 6; --- Part 7. Determination (ISO 8130-7.1992, IDT) mass loss during baking; --- Part 8. Evaluation of the storage stability of thermosetting powders (ISO 8130-8.1994, IDT); --- Part 9. Sampling (ISO 8130-9.1992, IDT); --- Part 10. Determination of deposition efficiency (ISO 8130-10.1998, IDT); --- Part 11. ramp flow test (ISO 8130-11.1997, IDT); --- Part 12. Determination of compatibility (ISO 8130-12.1998, IDT); --- Part 13. Laser diffraction particle size analysis (ISO 8130-13.2001, IDT); --- Part 14. Terminology (ISO 8130-14.2004, IDT). This is Part 10 GB/T 21782 of. This section identical with the international standard ISO 8130-10.1998 "powder coating Part 10. Determination of deposition efficiency" (in English). For ease of use of ISO 8130-10.1998 in this section do major editorial changes as follows. "." --- With a decimal point instead of a comma as the decimal point, ""; --- Delete international standards foreword. This part of the National Chemicals Management Standardization Technical Committee dangerous (SAC/TC251) and focal points. This part mainly drafted by. Guangdong CIQ, the Chemical Institute of standardization in the construction of Changzhou coating Chemical Research Hospital, Marine Chemicals Research Institute, Hubei Exit Inspection and Quarantine. The main drafters of this section. Chen Qiang, Di Cuiping, Wang Xiaobing, Mo Man, ZHOU Ming-hui, Chen Gufeng, Zheng Jianguo, Zhao Ling, Wang Cai, Zhang Jianfeng, Li Qingxiang. This section first release. GB/T 21782.10-2008/ISO 8130-10.1998 Powder Coatings Part 10. Determination of deposition efficiency

1 Scope

This section GB/T 21782 in the provisions under standard conditions with an electrostatic spray gun powder coating on the target tube, the standard actual target tube Determination of the deposition of the powder mass fraction. This method is suitable for corona charged or friction charged powder-coating operations. This method can be used to compare the efficiency of deposition of the same or the same powder gun powder different different gun. This method should only be used to compare continuous assessment or gun powder when, because of environmental and equipment largely with time And significant changes in the location. The results of this method depends on the powder of the following properties. a) chemical composition; b) density; C) the particle size distribution; D) shaped particle; E) in the air Mixtures flowability; F.) Water. The results are also dependent on the test conditions, which comprises. a) the spray pattern produced by the gun; b) air gun Pressure; c) gun voltage; d) the gun polarity; e) air humidity.

2 Normative references

The following documents contain provisions which, through reference GB/T 21782 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. ISO 8130-9.1992 Powder Coatings Part 9. Sampling

3 Terms and Definitions

The following terms and definitions apply to this section. 3.1 Powder mass deposition with respect to the discharge of the powder mass ratio, the mass fraction (%) said. Principle 4 This method provides at a known atmospheric temperature and humidity conditions, known flow rate charged by the powder coating of aluminum foil coated with 5 With a pipe in the middle on the determination of the quality of the powder is deposited in the middle of the pipe, thereby calculating the deposition rate. Operation should be carried out in the ventilation cabinet.

5 Instruments

Common laboratory equipment and the following instruments. 5.1 target device 5 by the inner diameter of 25mm, a length of 500mm of steel tube, one end of each tube has a hole drilled vertically to the tube suspension. Each pipe should be properly grounded. 5.2 Clean aluminum foil Commercially available products. GB/T 21782.10-2008/ISO 8130-10.1998

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