|
US$399.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJG 956-2013: Verfication Regulation of Air Samplers
Status: Valid JJG 956: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| JJG 956-2013 | English | 399 |
Add to Cart
|
3 days [Need to translate]
|
Verfication Regulation of Air Samplers
| Valid |
JJG 956-2013
|
| JJG 956-2000 | English | 559 |
Add to Cart
|
4 days [Need to translate]
|
Verification Regulation of Air Sampler
| Obsolete |
JJG 956-2000
|
PDF similar to JJG 956-2013
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| A61 | | Classification of International Standard | 17.020 | | Word Count Estimation | 17,189 | | Older Standard (superseded by this standard) | JJG 956-2000 | | Quoted Standard | GB/T 17061-1997; HJ/T 375-2007 | | Regulation (derived from) | AQSIQ Announcement No. 63 of 2013 | |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.
|