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GB/T 3449-2011 English PDF

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Q: Should I purchase the latest version GB/T 3449-2011?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 3449-2011 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.

US$489.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 3449-2011: Acoustics -- Measurement of noise inside rail bound vehicles
Status: Valid

GB/T 3449: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 3449-2011	489	Add to Cart	4 days	Acoustics -- Measurement of noise inside rail bound vehicles	Valid
GB/T 3449-1994	359	Add to Cart	3 days	Measurement of noise inside railway vehicles	Obsolete
GB 3449.1-1982	199	Add to Cart	2 days	Measurement of noise inside railway vehicles--Test code for measurement of noise inside drivercompartment of locomotives	Obsolete

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GB/T 3222.1 GB/T 3222.2 GB/T 4854.7 GB/T 3241.1 GB/T 3241.2 GB/T 4130.2

Basic data

Standard ID: GB/T 3449-2011 (GB/T3449-2011)
Description (Translated English): Acoustics -- Measurement of noise inside rail bound vehicles
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A59
Classification of International Standard: 17.140
Word Count Estimation: 21,277
Date of Issue: 2011-12-30
Date of Implementation: 2012-05-01
Older Standard (superseded by this standard): GB/T 3449-1994
Quoted Standard: GB/T 3240; GB/T 3241-2010; GB/T 3785.1-2010; GB/T 3947-1996; GB/T 5111-2011; GB/T 15173-2010; GB/T 27025-2008
Adopted Standard: ISO 3381-2005, MOD
Regulation (derived from): Announcement of Newly Approved National Standards No. 22 of 2011
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the rail vehicle or various other rail vehicle interior noise level and spectrum measurement conditions in order to obtain reproducible and comparable measurement results. But does not include the operation of the track maintenance vehicles. This standard applies to: Type tests, periodic supervision and inspection, conventional noise test. The results can be used to: characterize the noise within the vehicle, compare a specific track section of the internal noise of different vehicles. This standard does not involve language information infrasound and intelligibility.

GB/T 3449-2011: Acoustics -- Measurement of noise inside rail bound vehicles

---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.
Acoustics. Measurement of noise inside railbound vehicles ICS 17.140 A59 National Standards of People's Republic of China Replacing GB/T 3449-1994 Acoustic Measurement of noise inside rail vehicles (ISO 3381.2005, Railwayapplications-Acoustics-Measurementofnoise insiderailboundvehicles, MOD) Issued on. 2011-12-30 2012-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions Measurement of the amount of 4 4 5 4 measuring instruments 6 Test conditions 4 7 7 Test Methods 8 Test Report 8 Appendix A (informative) Rail roughness measurement technical requirements 10 Annex B (informative) includes a rail track dynamics, including the main parameters affecting noise 14 Annex C (informative) This standard and ISO 3095.2005 technical differences and their reasons 15 References 16

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This revised standard adopts ISO 3381.2005 "inside track Acoustic rail vehicles noise measurements." For ease of comparison, the information listed in Appendix C of this national standard reg number and ISO 3381.2005 Number of control clauses List. This standard and ISO 3381.2005 technical differences have been incorporated into the text, and they are involved in terms of the margin with a single vertical Line identification. It gives a list of these technical differences and their causes in Appendix C for reference. This standard replaces GB/T 3449-1994 "Measurement of noise inside railway rolling stock." This standard compared with GB/T 3449-1994, the main technical changes are as follows. This standard modifications are as follows. --- Expanding the scope to include conventional noise test; --- If the terms and phrases with GB/T 3947-1996 "Acoustics terminology" inconsistent terminology is adopted GB/T 3947- 1996 definition; --- According to China's national conditions, in Appendix A to the normative annex informative annex; --- Remove the introduction of ISO 3381. This standard was proposed by the Chinese Academy of Sciences. This standard by the National Standardization Technical Committee of Acoustics (SAC/TC17) centralized. This standard was drafted. Institute of Acoustics, Chinese energy-saving labor Methodist Research Institute Academy of Railway Sciences, Tongji University, on Shanghai Municipal Academy of Environmental Sciences, Beijing Labor Protection Institute. The main drafters of this standard. Chengming Kun, Lv Yadong, Ma Yun, Mao Dongxing, Initial Idea Guxiao An, Lee Hyo wide, Zhou Yude, Zhu Wenying, Diao Yin, Xu Xin, Peng Feng. Acoustic Measurement of noise inside rail vehicles

1 Scope

This standard specifies the various tracks of railway vehicle or other vehicle interior noise level and spectrum measurement conditions in order to obtain reproducible and Comparison of the measurement results. But does not include a running track maintenance vehicle. This standard applies to. --- Type tests; --- Periodic supervision and inspection; --- Conventional noise test. The results can be used to. --- Internal noise characterization of these vehicles; --- Compare the internal noise particular track sections of different vehicles. This standard specifies the test methods generally engineering grade (grade 2 accuracy of ± 2dB), wherein a predetermined acceleration or deceleration test method Easy level. According to the provisions of GB/T 19052, engineering level as the noise level of publicity given priority. This standard describes as start, acceleration, deceleration and under different operating conditions of the test set-like. The selected operating conditions authorized by the relevant machine Configuration or train to your unit or operating unit decided not required to be tested under all conditions. This standard does not involve infrasound and language information intelligibility.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 3240 acoustic measurement commonly used frequency (ISO 266. 1975, NEQ) GB/T 3241-2010 electro-acoustics octave and fractional octave filters (IEC 61260.1995, MOD) GB/T 3785.1-2010 Electric Acoustic Sound Level Meters Part 1. Specification (IEC 61672-1.2002, IDT) GB/T 3947-1996 Acoustics Terminology GB/T 5111-2011 Acoustics railway vehicle noise emission measurements (ISO 3095.2005, MOD) GB/T 15173-2010 electric acoustic sound calibrator (IEC 60942.2003, IDT) GB/T 27025-2008 testing and calibration laboratories General requirements (ISO /IEC 17025.2005, IDT)

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Type test typetestfornoiseemissionofrailboundvehicles rail vehicle noise emissions Vehicle inspection manufacturer delivered meets the specifications of the measurement noise. Type test typetest 3.2 Inspection monitoringtestfornoiseemissionofrailboundvehicles rail vehicle noise emissions Or a few extracts from a number of delivery vehicles to check whether the noise limits specified in, or check the vehicle due to the initial operation ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 3449-2011_English be delivered?

Answer: Upon your order, we will start to translate GB/T 3449-2011_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 GB/T 3449-2011_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 3449-2011_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.

Question 5: Should I purchase the latest version GB/T 3449-2011?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 3449-2011 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.