GB/T 33434-2016 English PDF

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GB/T 33434-2016: Determination of fume emission rate during arc welding of shipbuilding
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 33434-2016	279	Add to Cart	3 days	Determination of fume emission rate during arc welding of shipbuilding	Valid

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Basic data

Standard ID: GB/T 33434-2016 (GB/T33434-2016)
Description (Translated English): Determination of fume emission rate during arc welding of shipbuilding
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: U06
Classification of International Standard: 47.020.01
Word Count Estimation: 14,173
Date of Issue: 2016-12-30
Date of Implementation: 2017-07-01
Regulation (derived from): National Standard Notice No.27 of 2016
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 33434-2016: Determination of fume emission rate during arc welding of shipbuilding

---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.
Determination of fume emission rate during arc welding of shipbuilding ICS 47.020.01 U06 National Standards of People's Republic of China Method for determination of soot emission rate of ship 's arc welding 2016-12-30 release 2017-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by China Shipbuilding Industry Corporation. This standard is nationalized by the National Marine Ship Standardization Technical Committee (SAC/TC12). The drafting unit. Guangzhou Shipbuilding International Co., Ltd., China Shipbuilding Industry Comprehensive Technology and Economic Research Institute, Kunshan Jingqun Welding Material Technology Co., Ltd. the company. The main drafters of this standard. Li Hongju, Ma Jinjun, Yang Jianfeng, Jiang Zexin, Wu Jing, Tong Tianwang. Method for determination of soot emission rate of ship 's arc welding

1 Scope

This standard specifies the general requirements, test procedures, calculation results and test reports for the determination of soot emission rate of ship arc welding. This standard is applicable to the determination of the welding exhaust emissions and the soot emission of the electrode under the laboratory environment.

2 terms and definitions

The following terms and definitions apply to this document. 2.1 Soot The smoke or dust produced during the welding process. 2.2 Soot emission rate ofparticulate emission The amount of smoke generated per unit of time. 2.3 Emissions of smoke emission ofparticulatefume The amount of dust produced per 100g of deposited metal.

3 General requirements

3.1 Environmental conditions The environmental conditions for the determination of the emissions of soot and soot emissions shall meet the following requirements. a) Ambient temperature is room temperature; b) relative humidity not more than 75%. 3.2 measuring instruments and meters Determination of arc welding dust emission rate, soot emissions of the instrumentation include. a) measure the welding current, voltage clamp table; b) record the time of the stopwatch, the measurement error is less than 0.1s; c) dry elongation measurement block, the measurement error is less than 1mm; d) weighing the balance, the measurement accuracy of 1mg; e) gas flowmeter, the measurement error is less than 1L/min; f) hygrometer for measuring temperature and humidity. The above instruments should be met and qualified within the validity period. 3.3 Test equipment 3.3.1 Test device The test device is a semi-closed device made of thin steel plate, the internal surface should be smooth, to avoid the deposition of smoke. The sharp corners within the device ......

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