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JJF 1167-2007 English PDF

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US$579.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1167-2007: Calibration Specification for Psophometers
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1167-2007	579	Add to Cart	4 days	Calibration Specification for Psophometers	Valid

Similar standards

GB/T 3222.2 GB/T 3222.1 JJG 188 JJG 1175 JJG 1166 JJG 1167

Basic data

Standard ID: JJF 1167-2007 (JJF1167-2007)
Description (Translated English): Calibration Specification for Psophometers
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A59
Classification of International Standard: 17.140
Word Count Estimation: 22,297
Date of Issue: 2/28/2007
Date of Implementation: 2007-05-28
Older Standard (superseded by this standard): JJG 483-1987
Quoted Standard: GB/T 3102.5-1993; GB/T 3102.7-1993; JJG 188-2002; JJF 1001-1998; JJF 1034-2005; JJF 1059-1999; YD/T 625-1993
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 noise meter calibration.

JJF 1167-2007: Calibration Specification for Psophometers

---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.
Calibration Specification for Psophometers People's Republic of China National Metrology Technical Specifications Noise meter calibration specification Posted 2007-02-28 2007-05-28 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Noise meter calibration specification forPsop hometers Instead of JJG483-1987 This specification 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 Committee of the acoustic measurement technology Drafting unit. Hubei Provincial Institute of Measurement and Testing China Testing Technology Research Institute This specification by the responsible National Technical Committee acoustic measurement interpretation Drafters of this specification. Yao Qiuping (Hubei Institute of Measurement and Testing) Hao Yu-chuan (China Testing Technology Research Institute) Wang Hong (Hubei Institute of Measurement and Testing) Zhong Jingwen (Hubei Institute of Measurement and Testing) When the root of fire (Hubei Institute of Measurement and Testing) Luo Yaqing (Hubei Institute of Measurement and Testing)

1 Scope (1) 2. Referenced Documents (1) 3 terminology and units of measurement (1) 4 Overview (1) 5 Metrological characteristics (1) 5.1 Zero Voltage intrinsic error (1) 5.2 Input balance (1) 5.3 input impedance (1) 5.4 measured voltage limit (2) 5.5 linearity error (2) 5.6 unweighted noise voltage frequency response measurement (2) 5.7 Frequency Response weighted noise voltage measurement time (2) 5.8 Measurement average time (3) 5.9 RMS Features (3) 5.10 peak indicating characteristics (3) 6 calibration conditions (3) Environmental conditions 6.1 (3) 6.2 Standard device and other measuring equipment (4) 7 calibration items and calibration methods (4) 7.1 calibration items (4) 7.2 Calibration method (4) 8 calibration results expression (7) 8.1 Calibration Data Processing (7) 8.2 calibration certificate (8) 8.3 calibration measurement uncertainty (8) 9 Recalibration interval (8) Appendix A calibration certificate (9) Appendix B Uncertainty Evaluation Examples (12) Noise meter calibration specification

1 Scope

This instruction applies to noise meter (also known as noise voltmeter, noise tester) calibration.

2 Citations

This specification references the following documents GB/T 3102.5-1993 "electricity and magnetism Quantities and units" GB/T 3102.7-1993 "acoustic volume and unit" JJG188-2002 "Sound Level Meter" JJF 1001-1998 "common measurement terms and definitions" JJF 1034-2005 "Acoustic measurement terminology and definitions" JJF 1059-1999 "Evaluation and Expression of Uncertainty in Measurement" YD/T 625-1993 "noise meter technical conditions" When using this specification it should be noted that using the currently valid version of the documents cited.

3 terminology and units of measurement

This specification uses JJF 1001-1998, JJF 1034-2005 and JJG188-2002 regarding terms and definitions. This specification uses GB/T 3102.5-1993 Quantities and units and GB/T 3102.7-1993 prescribed.

4 Overview

Noise meter is used to measure the acoustic communication equipment, broadcast equipment and transmission line frequency interference noise generated by the instrument Is it prescribed weighted and time-weighted measurement of the size of audio interference noise voltage. It mainly consists of an input circuit, the amount of Programmable controller, amplifiers, weighted network, detectors, self-calibration signal source, and power indicator and other components.

5 Metrological characteristics

5.1 Zero Voltage inherent error When using the 800Hz (or 1000Hz) 0dB (Input impedance 600Ω, 0dB to 0.775V) input signal, Noise meter indicates voltage and zero voltage difference. Zero voltage inherent error is better than ± 0.3dB① 5.2 Input balance When the noise meter to its balanced input common-mode input signal rejection, which indicates noise noise voltage is measured Resistance to common mode interference. Enter the degree of balance is generally greater than 70dB. 5.3 Input impedance Noise meter input impedance is measured at the input impedance, low input impedance nominal value is usually 600Ω, ① chapter "general" indicates mentioned performance measurement indicators for reference only. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1167-2007_English be delivered?

Answer: Upon your order, we will start to translate JJF 1167-2007_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJF 1167-2007_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1167-2007_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+ countries

Question 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 Sales@ChineseStandard.net. 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.