JJG 1058-2010 English PDF

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JJG 1058-2010: Verification regulation of laboratory oscillation-type Liquid density meters
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 1058-2010	529	Add to Cart	4 days	Verification regulation of laboratory oscillation-type Liquid density meters	Valid

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Basic data

Standard ID: JJG 1058-2010 (JJG1058-2010)
Description (Translated English): Verification regulation of laboratory oscillation-type Liquid density meters
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A53
Classification of International Standard: 17.060
Word Count Estimation: 23,276
Date of Issue: 2010-06-10
Date of Implementation: 2010-09-10
Quoted Standard: JJF 1002-1998; JJF 1001-1998; JJF 1059-1999; ISO 15212-1; GB/T 6682-2008
Regulation (derived from): AQSIQ Announcement No. 59 of 2010
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to density range (650 ~ 3000) kg/m3 laboratory vibrating liquid densitometer (including desktop and handheld vibrating tube densimeter vibrating tube densimeter, hereinafter referred densitometer) of the initial verification, testing and use of subsequent in the test.

JJG 1058-2010: Verification regulation of laboratory oscillation-type Liquid density meters

---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 laboratory oscillation-type Liquid density meters State verification procedures People's Republic of China Vibration Laboratory Liquid Density Meter Issued on. 2010-06-10 2010-09-10 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Laboratory vibrating liquid Densitometer test procedures meters The regulations by the State Administration of Quality Supervision, Inspection and Quarantine approved on June 10, 2010, and from From September 10, 2010 into effect. Focal point. the National Technical Committee of the mass density measurement Main drafting unit. Hebei Institute of Metrology China Institute of Metrology China Testing Technology Research Institute Participated in the drafting unit. Hebei Supervision and Testing hospital The mass density measurement procedures commissioned by the National Technical Committee is responsible for interpretation The main drafters of this procedure. Liucheng Kui (Hebei Science Institute of Measurement) Chen Zhaohui (China Institute of Metrology) Ren Yanli (Hebei Science Institute of Measurement) Guo Qiang (Hebei Science Institute of Measurement) Shao Zhixin (China Testing Technology Research Institute)

table of Contents

1 Scope (1) 2. Referenced Documents (1) 3 Overview (1) 4 metering performance requirements (2) 5 General Requirements (2) 6 Control of measuring instruments (2) 6.1 test equipment (2) 6.2 test items and test methods (4) 6.3 test results processing (6) 6.4 test cycle (6) Appendix A test recording format (7) Appendix B calibration certificate and results of the notice page format (8) Appendix C (15 ~ 25) ℃ water density table (9) Appendix D air density is calculated (14) Appendix E wet air density meter (15) Appendix F several standard liquid capillary constant α (20 ℃) (17) Appendix G atmospheric pressure at sea level height table (18) Vibration Laboratory Liquid Density Meter Verification Regulation

1 Scope

The order applies to the density range (650 ~ 3000) kg/m3 of liquid laboratory vibrating densitometer (including station Vibrating tube densimeter and handheld vibrating tube densimeter, hereinafter referred densitometer) initial verification, subsequent verification and make With the test.

2 Citations

JJF1002-1998 national verification procedures to write rules JJF1001-1998 common measurement terms and definitions JJF1059-1999 measurement uncertainty and representation ISO 15212-1 vibratory densitometer Part I. Laboratory Instruments Laboratory use specifications and test methods GB/T 6682-2008 Analysis Should pay attention to the use of this procedure by using the currently valid version of the documents cited.

3 Overview

Densitometer is mainly composed of a U-shaped glass tube vibration, electromagnetic oscillator, temperature controller and a display unit and data Processing unit. The structure shown in Figure 1. When the volume of liquid filled U-shaped glass tube vibration, since the tube was The quality of a qualitative change, so that the natural frequency or characteristic frequency of the vibration tube also changes. Volume is constant, The frequency of the vibrating tube is filled inner tube material quality function. When the increase in mass density increases, reduce the frequency of vibration week Period increases. Conversely, when the reduced mass density decreases, the vibration period is reduced. The relationship between the two simple description as follows. ρ = A × T2-B (1) Where. ρ --- density; T --- vibration period; A, B --- instrument constant. Schematic diagram 1 densitometer ......

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