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GB/T 34627-2017 English PDF

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GB/T 34627-2017: Metallic and other inorganic coatings -- Definitions and conventions concerning appearance
Status: Valid
Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB/T 34627-2017119 Add to Cart 3 days Metallic and other inorganic coatings -- Definitions and conventions concerning appearance Valid

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Basic data

Standard ID: GB/T 34627-2017 (GB/T34627-2017)
Description (Translated English): Metallic and other inorganic coatings -- Definitions and conventions concerning appearance
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A29
Classification of International Standard: 25.220.20; 25.220.40
Word Count Estimation: 6,647
Date of Issue: 2017-09-29
Date of Implementation: 2018-04-01
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

GB/T 34627-2017: Metallic and other inorganic coatings -- Definitions and conventions concerning appearance


---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.
Metallic and other inorganic coatings - Definitions and conventions concerning appearance ICS 25.220.20; 25.220.40 A29 National Standards of People's Republic of China Metal and other inorganic coatings The definition of appearance and usage (ISO 16348.2003, IDT) 2017-09-29 Posted 2018-04-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Preface Ⅰ 1 Scope 1 2 Terms and definitions 1 3 Principle 1 4 confirmed typical reference sample (representative reference sample designation) 1 5 test conditions 2 6 Test Report 2 Reference 3

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard uses the translation method identical with ISO 16348.2003 "Definition of metal and other inorganic coatings appearance and usage." This standard is proposed by the China Machinery Industry Federation. This standard by the National Metal and Nonmetallic Coating Standardization Technical Committee (SAC/TC57) centralized. This standard was drafted. Wuhan Institute of Materials Protection, COSCO rare earth New Materials Co., Ltd., Guangzhou City, VW Hardware Co., Ltd. Division, Shenzhen Branch of a standard service center, Wuhan material security electroplating technology Productivity Promotion Center. The main drafters of this standard.Jia Jianxin, Zhang Dezhong, Xu Guanglin, Chen Ying, Liu Jin, Zeng Shujun. Metal and other inorganic coatings The definition of appearance and usage

1 Scope

This standard describes the specified metal and inorganic coatings, the appearance and its related terms and effective appearance of the description of the principle.

2 Terms and definitions

The following terms and definitions apply to this document. 2.1 Appearance appearance Visibility characteristics of all major surfaces. 2.2 Consistency of appearance uniformityofappearance In one lot or each lot, all the obvious features of the overlay are the same as the whole area of the main surface. 2.3 Blemish Minor blemishes, or deviations from the specified reference appearance, without prejudice to the normal function of the product. 2.4 Visible defect visibledefect Unacceptable physical imperfections or cracks on the cover affect the appearance of a given reference or reduce the functionality of the product.

3 principles

When specifying the technical requirements for overlay, especially when used as a reference sample, be sure to confirm the appearance of the test. product The standard should provide relevant details. Note 1. In order to ensure the durability of a given sample, special precautions may need to be taken, such as storing it in a desiccator or depending on the conditions of storage Will be valid. If the product standard does not provide a method, you can use the comparative sample method to determine the appearance and consistency. Passed will be coated with the specified model Reference sample for comparison confirmation (see Chapter 4). Measurement methods such as gloss meter, profiler, colorimeter and other suitable test methods can be used. These methods can provide product standards or purchase Buying contract stipulated characteristics of the measurement method. Note 2. It is not sufficient to describe one by appearance alone. 4 confirmed typical reference sample (representative reference sample designation) In a certain production process may need to use more than one confirmed reference sample to characterize the change of parameters. The sample manufacturing and coating technology should be the same as the purchase part in order to ensure that the purchased product is consistent and reproducible. In order to avoid disputes, all parties concerned unanimously confirmed the various aspects of the reference sample. Confirmed reference samples should be kept by all parties in order to
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