US$349.00 · In stock Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. JJF 1627-2017: Calibration Specification for Reference Leaks by Soap Film Flowmeter Status: Valid
Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
JJF 1627-2017 | English | 349 |
Add to Cart
|
3 days [Need to translate]
|
Calibration Specification for Reference Leaks by Soap Film Flowmeter
| Valid |
JJF 1627-2017
|
PDF similar to JJF 1627-2017
Basic data Standard ID | JJF 1627-2017 (JJF1627-2017) | Description (Translated English) | Calibration Specification for Reference Leaks by Soap Film Flowmeter | Sector / Industry | Metrology & Measurement Industry Standard | Classification of Chinese Standard | A53 | Word Count Estimation | 15,177 | Date of Issue | 2017-09-26 | Date of Implementation | 2017-12-26 | Regulation (derived from) | General Administration of State Quality Inspection Announcement 2017 No. 78 | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine |
JJF 1627-2017: Calibration Specification for Reference Leaks by Soap Film Flowmeter---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.
(Standard Specification for Standard Leakage of Soap Membrane Flowmeter)
People's Republic of China National Measurement Specifications
Standard calibration method for leak detection of soap film flowmeter
Calibration Specification for ReferenceLeaks bySoapFilmFlowmeter
2017-09-26 Posted
2017-12-26 Implementation
General Administration of Quality Supervision, Inspection and Quarantine released
Standard calibration method for leak detection of soap film flowmeter
The focal point. National pressure measurement technical committee
The main drafting unit. Shanghai Institute of Measurement and Testing Technology
Participate in the drafting unit. Boyi (Tianjin) Pneumatic Technology Institute Co., Ltd.
This specification entrusts the national pressure measurement technical committee to explain
The main drafters of this specification.
Xu Hong (Shanghai Institute of Measurement and Testing Technology)
Zhang Shuling (Shanghai Institute of Measurement and Testing Technology)
Participate in the drafters.
Aiko Wei [Bo Yi (Tianjin) Pneumatic Technology Co., Ltd.]
Zhang Weiming [Bo Yi (Tianjin) Pneumatic Technology Co., Ltd.]
table of Contents
Introduction (Ⅱ)
1 Scope (1)
2 References (1)
3 Terms and measurement units (1)
4 Overview (2)
4.1 Structure (2)
4.2 Principle (2)
4.3 Use (2)
5 Metrology (2)
5.1 Leakage leakage rate (2)
5.2 Repeatability (2)
6 Calibration conditions (2)
6.1 Environmental conditions (2)
6.2 Measurement standards and other equipment (3)
7 Calibration Items and Calibration Methods (3)
7.1 Visual inspection (3)
7.2 Preparation before calibration (3)
7.3 Calibration (4)
7.4 Data Processing (4)
8 Calibration Results Expression (4)
9 time interval of correction (5)
Appendix A Calibration Record Formats (6)
Appendix B Calibration Certificate (Inside Page) Format (7)
Appendix C Standard leakage leak rate measurement uncertainty assessment (8)
Introduction
JJF 1071-2010 "Rules for the Preparation of National Metrology Calibration Standards", JJF 1001-2011 "General Measurement Terms and
Definition ", JJF 1059.1-2012" Evaluation and Expression of Uncertainty in Measurement ", GB/T 3163-2007" Vacuum Technology
The term "together constitute the basic set of norms developed by this specification.
This specification refers to EN13192.2001 "Non-destructive testing leakage test gas reference leak calibration" (Non
Destructive Testing-Leak Testing-Calibration of Reference Leaks for Gases, ASTM
E908-98 (Reapproved2012) Gas Reference Leakage Calibration Standard Practice (StandardPracticefor
CalibratingGaseousReferenceLeaks) and JJG586-2006 "soap film flow meter" to develop, adopt
Use one of the basic principles.
This specification is first released.
Standard calibration method for leak detection of soap film flowmeter
1 Scope
This specification applies to the leakage rate range of 1mL/min ~ 10L/min, intake end pressure in 1kPa ~ 1.5MPa,
The exit end is the calibration of the standard leak hole of the atmosphere (hereinafter referred to as leak hole).
2 reference documents
This specification cites the following documents.
JJG586-2006 soap film flow meter
Vacuum technology terms
Non - destructive testing - Calibration of leaks for gas reference leaks (NonDestructive
Testing-Leak Testing-Calibration of Reference Leaks for Gases)
Standard Specification for Leakage Calibration of Gas Reference Leakage (ASTME908-98 (Reapproved.2012))
Practice forCalibratingGaseousReferenceLeaks)
For dated references, only the dated version applies to this specification; for undated references
The latest version (including all amendments) applies to this specification.
3 Terms and measurement units
3.1 leak hole leak [GB/T 3163-2007, the definition 6.1.1]
Passing gas from one side of a wall to a hole, aperture, permeable element or
Other structures on the wall of a closure.
3.2 Standard leak referenceleak
Under specified conditions (inlet pressure, outlet pressure, temperature 23 ℃ ± 5 ℃), the leak rate is a known school
Punch hole used.
3.3 Leakage rates (symbol .QV) [GB/T 3163-2007, Definition 6.1.9]
Under specified conditions, the flow rate of a particular gas through a leak, measured in mL/min or L/min.
3.4 viscousflow viscousflow [GB/T 3163-2007, the definition 2.26]
The mean free path of gas molecules is much smaller than the flow of gas through the conduit at the smallest cross-sectional dimension of the conduit, and the flow depends on
Gas viscosity. Flow can be laminar or turbulent.
3.5 soap film flowmeter soapfilmflowmeter [JJG586-2006, the definition 3.1]
Flow meter for measuring the flow of minute gases. From a soap tube with a graduated scale, the soap film passes through the soap tube
Up and down the time scale and the volume between the two membrane tube to calculate the instantaneous flow through the flow meter.
3.6 electronic soap film flow meter electronicsoapfilmflowmeter [JJG586-2006, the definition 3.1]
In the soap tube to install a pair of electronic sensors, and can display the instrument directly shows the instantaneous flow of soap film flow
Gauge.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of JJF 1627-2017_English be delivered?Answer: Upon your order, we will start to translate JJF 1627-2017_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of JJF 1627-2017_English with my colleagues?Answer: Yes. The purchased PDF of JJF 1627-2017_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.
|