JJG 1023-2007 English PDF

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JJG 1023-2007: Verification Regulation of Testing Instrument for Density and Moisture with Nuclear Radiation Method
Status: Valid

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JJG 1023-2007	339	Add to Cart	3 days	Verification Regulation of Testing Instrument for Density and Moisture with Nuclear Radiation Method	Valid

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Basic data

Standard ID: JJG 1023-2007 (JJG1023-2007)
Description (Translated English): Verification Regulation of Testing Instrument for Density and Moisture with Nuclear Radiation Method
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A53
Classification of International Standard: 17.060
Word Count Estimation: 13,158
Date of Issue: 2007-02-28
Date of Implementation: 2007-05-28
Quoted Standard: AQSIQ Announcement No. 41 of 2007
Regulation (derived from): AQSIQ Announcement No. 41 of 2007
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to nuclear density and moisture meter initial verification, testing and use of follow-up inspection.

JJG 1023-2007: Verification Regulation of Testing Instrument for Density and Moisture with Nuclear Radiation Method

---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 Testing Instrument for Density and Moisture with Nuclear Radiation Method State verification procedures People's Republic of China Nuclear density and water content measuring instrument Posted 2007-02-28 2007-05-28 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Nuclear density and water content measuring instrument Verification Regulation The regulations by the State Administration of Quality Supervision, Inspection and Quarantine, 2007 February 28 ratification and From May 28, 2007 into effect. Focal point. the National Technical Committee of the mass density measurement The main drafting units. Shandong Institute of Metrology Realistic Beijing Institute of Electrical Equipment Participated in the drafting unit. Shandong Jiaotong University The mass density measurement procedures commissioned by the National Technical Committee is responsible for interpretation The main drafters of this procedure. Pan Jianping (Shandong Province Institute of Metrology) Wang Hao (Beijing Institute of Mechanical and Electrical Equipment truth-seeking) Lee Wan liters (Shandong Province Institute of Metrology) Ma Li (Shandong Province Institute of Metrology) Drafters participate. Huang Dongming (Shandong Jiaotong University)

table of Contents

1 Scope (1) 2. Referenced Documents (1) 3 terminology and units of measurement (1) 3.1 density (1) Moisture 3.2 (1) 3.3 standard block (1) 3.4 density standard count (1) 3.5 moisture standard count (1) 4 Overview (1) 5 metering performance requirements (2) 5.1 density indication error (2) 5.2 moisture indication error (2) 5.3 standard density count, water content standard counting (2) 6 General Requirements (2) 6.1 appearance requirements (2) 6.2 scale requirement (2) 6.3 marking requirements (2) 6.4 Battery requirements (3) 7 control of measuring instruments (3) 7.1 test conditions (3) 7.2 Verification Project (3) 7.3 Verification Methods (4) 7.4 Verification Results Processing (5) 7.5 test cycle (5) Original record format in Appendix A (6) Appendix B test certificate page format (8) Nuclear density and water content measuring instrument verification regulation

1 Scope

The order applies to nuclear density and water content measuring instrument (hereinafter referred to as the nuclear gauge) initial verification, subsequent verification And in-service inspection.

2 Citations

The regulations cited in the following documents. JJF1001-1998 "common measurement terms and definitions" SL275-2001 "Nuclear Moisture - Density field testing procedures" JJG (Railway) 128-1991 "nuclear moisture density tester" When using this procedure, it should pay attention to using the currently valid version of the documents cited.

3 terminology and units of measurement

3.1 density [density] The quality of the test material to its volume V m ratio. which is ρ = m/V Units of kg/m3 or g/cm3. 3.2 moisture content [watercontent] The quality of the test material per unit volume of water. Units of kg/m3 or g/cm3. 3.3 calibration block [standardblock] With nuclear gauge support for nuclear gauge calibration at any time (density, water content) standard calibration block counts. Density 3.4 standard counting [densitystandardcounts] The nuclear device is placed on the calibration block within 4min measuring time, a nuclear density meter detector detected γ Ray count. 3.5 moisture standard count [moisturestandardcounts] The nuclear device is placed on the calibration block within 4min measuring time, nuclear gauge moisture probe detected Slow neutron count.

4 Overview

Nuclear measured density and water content, is the mechanism of nuclear physics and radiation material to be measured based on the interaction To achieve. Density measurement principle. from 137Cs radioactive source γ rays, radiation through the tested material by the Compton effect Known, the greater the density, the greater the intensity of radiation attenuation. By the nuclear gauge of γ-ray probe sensed radiation strength, The material being tested can be measured density values. ......

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