GB/T 25752-2010 English PDF

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GB/T 25752-2010: Differential pressure air leak tester
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 25752-2010	299	Add to Cart	3 days	Differential pressure air leak tester	Valid

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Basic data

Standard ID: GB/T 25752-2010 (GB/T25752-2010)
Description (Translated English): Differential pressure air leak tester
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J78
Classification of International Standard: 23.160
Word Count Estimation: 13,137
Date of Issue: 2010-12-23
Date of Implementation: 2011-10-01
Quoted Standard: GB/T 191; GB/T 15479-1995
Regulation (derived from): National Standard Approval Announcement 2010 No.10 (Total No.165)
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 terms and definitions of differential pressure airtight leak detector, classification, structure and basic parameters, test conditions, test methods, inspection rules, signs, packaging, transport and storage. This standard applies to the differential pressure sensor detects the pressure difference between the measured object and reference materials for the pressure-sensitive element to determine whether the presence of analyte leakage and leakage rates of various types of size differential pressure airtight leak (hereinafter referred to as seizure leak detector).

GB/T 25752-2010: Differential pressure air leak tester

---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.
Differential pressure air leak tester ICS 23.160 J78 National Standards of People's Republic of China Differential pressure airtight leak detectors Issued on. 2010-12-23 2011-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The standard proposed by China Machinery Industry Federation. This standard by the National Standardization Technical Committee of vacuum technology. This standard is drafted by. Bo Yi (Tianjin) Co., Ltd. Pneumatic Technology Institute. Participated in the drafting of this standard. Zhejiang three flowers and Industry Industrial Co., Ltd., Shenyang Branch of Precision Instruments Co., Ltd., Anhui Hefei Branch Technology Co., Ltd., Anhui Branch of smart high-tech Co., Ltd., Beijing Extension odd-automation Technology Co., Ltd., Shenyang Vacuum Technology Institute The study. The main drafters of this standard. Nai g, Ai Zi Wei, Zhang Weiming, Wang Yong, Li Feng He, Ms. Huang, Wu first up, Wan-hand new, positive light Peng, ROCKETS. Differential pressure airtight leak detectors

1 Scope

This standard specifies the terms and definitions differential pressure airtight leak detectors, classification, structure and basic parameters, test conditions, test methods, inspection Rules, marking, packaging, transportation and storage. This standard applies to the differential pressure sensor for detecting a pressure difference between the measured object and the reference material for the pressure-sensing element to determine whether the presence of analyte vent Leak size and leak rates of all types of differential pressure type airtight leak detector (hereinafter referred to as the leak detector).

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 191 Packaging - Pictorial signs (GB/T 191-2008, ISO 780.1997, MOD) GB/T 15479-1995 industrial automation instruments of insulation resistance, dielectric strength technical requirements and test methods

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 In the differential pressure sensor detects the pressure difference between the measured object and the reference material for the pressure-sensing element to determine whether there is leakage measured object size and leak rate An instrument or device. 3.2 Reference material master And the shape, material and volume of the same analyte and the leakage rate and the measured object can be neglected compared to the reference object. 3.3 Volume corrector internalvolumecalibrator Through precise, small amount of change in volume, so that the leak detector generates a pressure difference of different devices. 4 classification, structure and basic parameters 4.1 Classification Leak test pressure divided by. a) Vacuum leak test pressure of less than 1 × 105Pa (gauge pressure range of -100kPa ~ 0kPa); b) micro-pressure leak test pressure in the range of 1 × 105Pa ~ 1.5 × 105Pa (gauge pressure range of 0kPa ~ 50kPa); c) a low pressure leak test pressure in the range of 1.5 × 105Pa ~ 3 × 105Pa (gauge pressure range of 50kPa ~ 200kPa); d) the pressure leak test pressure in the range of 3 × 105Pa ~ 8 × 105Pa (gauge pressure range of 200kPa ~ 700kPa); e) high-pressure leak test pressure is higher than 8 × 105Pa (gauge pressure greater than 700kPa). 4.2 Structure Detection of analytes with general inflation port of the leak detector (the structure is shown in Figure 1). Unit detected no inflation port sealing components Leak detector (the structure is shown in Figure 2). ......

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