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JJG 956-2013 English PDF

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JJG 956-2013: Verfication Regulation of Air Samplers
Status: Valid

JJG 956: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJG 956-2013English399 Add to Cart 3 days [Need to translate] Verfication Regulation of Air Samplers Valid JJG 956-2013
JJG 956-2000English559 Add to Cart 4 days [Need to translate] Verification Regulation of Air Sampler Obsolete JJG 956-2000

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Basic data

Standard ID JJG 956-2013 (JJG956-2013)
Description (Translated English) Verfication Regulation of Air Samplers
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A61
Classification of International Standard 17.020
Word Count Estimation 17,189
Older Standard (superseded by this standard) JJG 956-2000
Quoted Standard GB/T 17061-1997; HJ/T 375-2007
Regulation (derived from) AQSIQ Announcement No. 63 of 2013
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine
Summary This standard applies to: air sampler initial verification, testing and use of follow-up inspection.

JJG 956-2013: Verfication Regulation of Air Samplers

---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.
Verfication Regulation of Air Samplers State verification procedures People's Republic of China Air sampler AirSamplers Issued on. 2013-04-27 2013-11-27 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Air sampler verification procedures AirSamp lers Replacing JJG 956-2000 Focal point. the National Technical Committee on Environment stoichiometry The main drafting units. China Institute of Metrology Participated in the drafting. Jiangxi Institute of Measurement and Testing Qingdao Measurement and Testing Qingdao Laoshan Institute of Applied Technology Guangzhou New Instrument Co., Ltd. This procedure commissioned the National Technical Committee of the stoichiometric environment responsible for interpreting The main drafters of this procedure. Zhang Ge (China Institute of Metrology) Repair Hongyu (China Institute of Metrology) Drafters participate. Yang Yuzhe (Jiangxi Institute of Measurement and Testing) Junjie Liu (China Institute of Metrology) Xia Chun (Qingdao Measurement and Testing) Liang (Qingdao Laoshan Institute of Applied Technology) Ji Xue Lin (Guangzhou Instrument Co., Ltd.)

table of Contents

Introduction (Ⅱ) 1 Scope (1) 2. References (1) 3 Overview (1) 4 metering performance requirements (1) 5 General Requirements (2) 6 Control of measuring instruments (2) 6.1 Verification condition (2) 6.2 Verification Project (2) 6.3 Verification Methods (3) Processing 6.4 Verification Results (6) 6.5 test cycle (6) Appendix A test original record format (7) Appendix B test certificates/test results in the notice page format (9)

Introduction

The procedure to JJF1002 "national verification procedures write rules", JJF1001 "universal metering and fixed term Meaning "as the basis of the revised specification. The procedures in place JJG 956-2000 "air sampler." Compared with JJG 956-2000 version, in addition to editorial changes, the present regulations the main technical changes are as follows. --- Added "under traffic load status indication error" verification; --- Added "repetitive traffic load condition" verification; --- Increased "flow stability under load conditions," the test; --- Added "Temperature indication error" verification. Air sampler verification procedures

1 Scope

The order applies to air sampler initial verification, subsequent verification and the use of checks. 2. References This procedure references the following documents. GB/T 17061-1997 workplace air sampling equipment specifications HJ/T 375-2007 ambient air sampler technical requirements and test methods For dated references, only the dated edition applies to this procedure; undated reference documents Member, the latest edition (including any amendments) applies to this procedure.

3 Overview

Air sampler (hereinafter referred to as equipment) is to collect atmospheric gaseous or vapor instrument samples, which works Sample by sample pump, steady flow through different measures and timing synchronization method, achieve the quantitative collection. According to the instrument Bear the load capacity, the instrument is divided into Class A (bearer 0.5kPa) and Class B (bearer 4.5kPa). Instrument consists of three parts collector flow system and pump power systems. Collectors into the absorption tube, filter Mining Like folders, solids sampling tube for collecting a small amount of gaseous pollutants mining trachea, syringes, vacuum bottles. flow Volume systems typically employ rotameter measuring the gas flow rate, the flow regulating means may also be assembled, the timing control means and temperature Degree control devices. Suction power system is actually a vacuum pumping system, usually by an electric vacuum pump, scraper Pump, membrane pump, electromagnetic pump or other suction pump, etc., shown in Figure 1. 1 air sampler structure diagram in Fig.

4 metering performance requirements

Class A and Class B instrumental performance shall meet the requirements of Table 1.

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