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JJG 480-2007 English PDF

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JJG 480-2007: Verification Regulation of X-Ray Thickness Gauge
Status: Valid

JJG 480: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJG 480-2007English369 Add to Cart 3 days [Need to translate] Verification Regulation of X-Ray Thickness Gauge Valid JJG 480-2007
JJG 480-1987English479 Add to Cart 4 days [Need to translate] Verification Regulation of X-Ray Thickness Gauge Obsolete JJG 480-1987

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Basic data

Standard ID JJG 480-2007 (JJG480-2007)
Description (Translated English) Verification Regulation of X-Ray Thickness Gauge
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A52
Classification of International Standard 17.040.30
Word Count Estimation 14,113
Date of Issue 2007-06-14
Date of Implementation 2007-12-14
Older Standard (superseded by this standard) JJG 480-1987
Quoted Standard JJF 1001-1998; JJF 1059-1999; JJF 1094-2002; GB 18871-2002
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine
Summary This standard applies to the X-ray thickness gauge initial verification, testing and use of follow-up inspection.

JJG 480-2007: Verification Regulation of X-Ray Thickness Gauge

---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.
Verification Regulation of X-Ray Thickness Gauge State verification procedures People's Republic of China X-ray gauge Posted 2007-06-14 2007-12-14 implementation The State Administration of Quality Supervision, Inspection and Quarantine released X-ray gauge test procedures Replacing JJG 480-1987 The regulations by the State Administration of Quality Supervision, Inspection and Quarantine, 2007 June 14 ratification and From December 14, 2007 into effect. Focal point. the National Technical Committee of length measuring geometry Drafting. Shanghai Institute of Measurement and Testing This procedure length measuring geometry commissioned the National Technical Committee is responsible for interpretation The drafters of the regulations. Liu Yin (Shanghai Institute of Measurement and Testing) Chen Zhize (Shanghai Institute of Measurement and Testing)

table of Contents

1 Scope (1) 2. Referenced Documents (1) 3 Overview (1) 4 metering performance requirements (2) 4.1 Repeatability (2) 4.2 Indication error (2) 4.3 show drift (2) 4.4 radiation leakage (2) 5 General Requirements (2) 5.1 Appearance (2) 5.2 Interaction of each part (2) 6 Control of measuring instruments (2) 6.1 Verification condition (3) 6.2 Verification Project (3) 6.3 Verification Methods (3) Processing 6.4 Verification Results (4) 6.5 test cycle (4) Appendix AX-ray gauge Uncertainty about Indication Error analysis of measurement results (5) Shape and technical requirements and test methods Appendix B standard thickness of the plate (8) Appendix C calibration certificate and test results in the notice page format (9) X-ray gauge test procedures

1 Scope

The initial verification procedures applicable to X-ray thickness gauge, subsequent verification and in-service inspection.

2 Citations

The regulations cited in the following documents. JJF1001-1998 common measurement terms and definitions JJF1059-1999 Evaluation and Expression of Uncertainty in Measurement JJF1094-2002 measuring instrument characteristics evaluation GB 18871-2002 ionizing radiation protection and safety of radiation sources basic standards When using this procedure, it should pay attention to using the currently valid version of the documents cited.

3 Overview

X-ray thickness gauge (typically shape the structure shown in Figure 1) is a non-contact dynamic measuring instruments, but also He said X-ray thickness gauge, X-ray thickness meter and the like. When the instrument uses X-rays penetrate the material under test, X-ray intensity Changes related features and material thickness, the thickness of the test material, mainly used for rolling production line or continuous measurement of the processing line The amount of steel, copper, aluminum and other materials, thickness of the plate. The instrument is typically the measuring range (0 ~ 30) mm, resolution is 0.01mm, 0.001mm. Figure 1 X-ray gauge 1- recorder; 2- ray directions; 3 - the power switch; 4- ray probe; 5- digital display; 6- preset key; 7- range selection; 8- Power Box; 9- "C" shaped measuring frame; 10- ray emission hole

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Question 5: Should I purchase the latest version JJG 480-2007?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 480-2007 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.