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JJF 1142-2006 English PDF

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US$449.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1142-2006: Calibration specification for building acoustic
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1142-2006	449	Add to Cart	3 days	Calibration specification for building acoustic	Valid

Similar standards

GB/T 3222.2 GB/T 3222.1 JJG 188 JJG 1190 JJF 2012 JJG 1142

Basic data

Standard ID: JJF 1142-2006 (JJF1142-2006)
Description (Translated English): Calibration specification for building acoustic
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A59
Word Count Estimation: 17,122
Date of Issue: 2006-05-23
Date of Implementation: 2006-08-23
Quoted Standard: GB/T 3102.7-1993; GB/T 3241-1998; GB/T 3947-1996; GB/T 4129-2003; JJF 1001-1998; JJF 1059-1999; JJG 188-2002; JJG 277-1998; JJG 449 -2001; JJG 607-2003
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to building acoustics analyzer calibration.

JJF 1142-2006: Calibration specification for building acoustic

---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 building acoustic National Metrology Technical Specification of the People's Republic Building Acoustics Analyzer Calibration Specifications Released on.2006-05-23 Implementation of.2006-08-23 The General Administration of Quality Supervision, Inspection and Quarantine issued Building Acoustics Analyzer Calibration Specifications Zers This specification was approved by the General Administration of Quality Supervision, Inspection and Quarantine on May 23,.2006, and Implemented on August 23,.2006. Focal Point. National Acoustic Metrology Technical Committee Drafting unit. Hubei Institute of Metrology and Testing Technology This specification entrusts the National Acoustic Metrology Technical Committee to explain The main drafters of this specification. Yao Qiuping (Hubei Institute of Metrology and Testing Technology) Participate in the drafters. Shi Gengen (Hubei Institute of Metrology and Testing Technology) Luo Yaqing (Hubei Institute of Metrology and Testing Technology) Tao Lijun (Hubei Institute of Metrology and Testing Technology)

1 Scope (1) 2 Citations (1) 3 terms and units of measurement (1) 4 Overview (1) 5 Metrology performance (1) 5.1 Spectrum Analysis Features (1) 5.2 Reverberation time (2) 5.3 Sound pressure level measurement part (2) 5.4 Signal source characteristics (2) 6 Calibration conditions (2) 6.1 Environmental conditions (2) 6.2 Standard and other equipment (3) 7 Calibration items and calibration methods (3) 7.1 Calibration Project (3) 7.2 Calibration method (4) 8 calibration result expression (6) 8.1 Calibration Data Processing (6) 8.2 Calibration Certificate (7) 8.3 Calibration results uncertainty assessment (7) 9 re-study interval (7) Appendix A Calibration Certificate Contents (8) Appendix B Architectural Acoustics Analyzer Reverberation Time Measurement Uncertainty Analysis Example (11) Building Acoustics Analyzer Calibration Specifications

1 Scope

This specification applies to the calibration of architectural acoustic analyzers.

2 Citations

This specification refers to the following documents. GB/T 3102.7-1993 "Amount and unit of acoustics" GB/T 3241-1998 "octave and fractional octave filter" GB/T 3947-1996 "Acoustic terminology" GB/T 4129-2003 "Standard Sound Source" JJF 1001-1998 General Terms and Definitions JJF 1059-1999 "Measurement Uncertainty Evaluation and Representation" JJG188-2002 "Sound Level Meter" JJG277-1998 "Standard Sound Source" JJG449-2001 "octave and 1/3 octave filter" JJG607-2003 "Audio Signal Generator" Use of this specification should be done with the current valid version of the above cited documents.

3 terms and units of measure

This specification uses the relevant terms and definitions in JJF 1001-1998 and the provisions of GB/T 3102.7-1993. The amount and unit.

4 Overview

The building acoustic analyzer is an instrument that measures the basic parameters of building acoustics such as reverberation time and band sound pressure level. building Acoustic analyzers are widely used for the measurement of room reverberation time and the measurement of acoustic properties such as material sound absorption and sound insulation. Building sound The analyzer is usually composed of spectrum analysis, band sound pressure level measurement, reverberation time measurement, sound source, etc. Building acoustic analyzer without sound source part, excitation sound by external pulse sound (such as starting gun, electric spark, etc.), broadband noise The sound source is completed (such as a noise generator).

5 Measurement characteristics

5.1 Spectrum Analysis Features ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1142-2006_English be delivered?

Answer: Upon your order, we will start to translate JJF 1142-2006_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 1142-2006_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1142-2006_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.