GB 1495-2002 PDF English
US$145.00 · In stock · Download in 9 secondsGB 1495-2002: Limits and measurement methods for noise emitted by accelerating motor vehicles Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid GB 1495: Evolution and historical versions
Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
GB 1495-2002 | English | 145 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Limits and measurement methods for noise emitted by accelerating motor vehicles
| Valid |
GB 1495-1979 | English | 199 |
Add to Cart
|
2 days
|
Permissible noise limit emitted by power-driven vehicles
| Obsolete |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GB 1495-2002
GB 1495-2002: Limits and measurement methods for noise emitted by accelerating motor vehicles---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB1495-2002
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 13.140
Z 32
Replacing GB 1495, partially replacing GB 1496-79
Limits and measurement methods for noise
emitted by accelerating motor vehicles
Issued on. JANUARY 04, 2002
Implemented on. OCTOBER 01, 2002
Issued by. State Environmental Protection Administration;
General Administration of Quality Supervision, Inspection and
Quarantine.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative references... 4
3 Definitions... 5
4 Noise limit... 6
5 Measurement methods... 7
Annex A (standard) Measurement methods for noise emitted by accelerating
motor vehicles... 8
Annex AA Requirements for noise measurement test road... 15
Annex AB Record of measurement for noise emitted by accelerating motor
vehicles... 23
Foreword
This Standard was formulated in accordance with Law of the People's Republic
of China on Prevention and Control of Pollution from Environmental Noise.
This Standard referred to United Nations Economic Commission for Europe
Regulation ECE Reg. No. 51 “Uniform provisions concerning the approval of
motor vehicles having at least four wheels with regard to their noise emissions”
and was based on the actual situation of China's automotive products.
The noise limit of this Standard replaces the car noise limit in GB 1495-79.
On the noise measurement methods, in technical contents, this Standard
referred to Annex 3 of United Nations Economic Commission for Europe
Regulation ECE Reg. No. 51/02 (1997) “Uniform provisions concerning the
approval of motor vehicles having at least four wheels with regard to their noise
emissions” and corresponding content in the International standard ISO
362.1998 “Acoustics -- Measurement of noise emitted by accelerating road
vehicles -- Engineering method”.
The requirements for test road in this Standard equivalently adopted ISO
10844.1994 “Acoustics -- Specification of test tracks for the purpose of
measuring noise emitted by road vehicles”. It shall be implemented since
January 1, 2005.
This Standard shall be implemented in two time periods according to the auto
exit-factory dat.
This Standard was proposed by State Environmental Protection Administration,
Science and Technology Standard Department.
The drafting organizations of this Standard. Beijing Labor Protection Science
Research Institute, China Automotive Technology and Research Center.
This Standard was approved by State Environmental Protection Administration
on November 22, 2001.
This Standard shall be interpreted by State Environmental Protection
Administration.
Limits and measurement methods for noise
emitted by accelerating motor vehicles
1 Scope
This Standard specifies the limits for noise emitted by accelerating new
produced motor vehicles.
This Standard specifies the measurement methods for noise emitted by
accelerating new produced motor vehicles.
This Standard is applicable to Category-M and Category-N1 motor vehicles.
2 Normative references
The following standards contain the provisions which, through reference in this
Standard, constitute the provisions of this Standard. For dated references,
subsequent amendments (excluding corrections) or revisions do not apply to
this Standard. However, the parties who enter into agreement based on this
Standard are encouraged to investigate whether the latest versions of these
documents are applicable.
GB 3785-83, Electroacoustics - Sound level meters
GB/T 15173-94, Sound calibrators
GB/T 12534-90, Motor vehicles - General rules of road test method
ISO 10844-1994, Acoustics - Specification of test tracks for the purpose of
measuring noise emitted by road vehicles 2
ISO 10534 1996, Acoustics - Determination of sound absorption coefficient
and impedance in impedance tubes - Part 1.Method using standing wave
ratio 3
GB/T 17692-1999, Measurement methods of net power for automotive
engines
3 Definitions
For the purposes of this document, the following definitions apply.
3.1 Motor vehicle’s category
In terms of noise outside the motor vehicle, a category of motor vehicle refers
to a category of motor vehicles that have no difference in the following main
aspects.
3.1.1 Body shape or structural material (especially the engine compartment and
its sound insulation material).
3.1.4 Drive train, gear number and its speed ratio.
3.1.5 Noise reduction system or components as defined in 3.2 and 3.3 below.
3.2 Noise reduction system
Noise reduction system refers to the complete set of components necessary to
limit the motor vehicle and its exhaust noise. When the noise reduction
component’s designations or trademarks in the system are different, or the size
and shape of the components, material properties, assembly, working principle
are different, or the number of intake/exhaust mufflers is different, the system
shall be regarded as different types of noise reduction systems.
3.3 Noise reduction system components
The noise reduction system component refers to one of the individual
components that constitute the noise reduction system, such as the exhaust
pipe, the expansion chamber, the muffler, etc. It is considered a component of
the noise reduction system when the presence of the air filter is essential to
ensure that the specified noise limits are met.
4 Noise limit
When the vehicle accelerates, the maximum noise level outside the vehicle
shall not exceed the limits specified in Table 1.
5 Measurement methods
The measurements for noise emitted by accelerating motor vehicles shall be
performed according to Annex A.
Annex A
(Normative)
Measurement methods for noise emitted by accelerating motor vehicles
A.1 Measuring instruments
A.1.1 Acoustic measurement
A.1.2 Measurements of rotating speed, vehicle speed
An engine tachometer or vehicle speed measuring instrument with an accuracy
better than ±2% must be used to monitor the rotating speed or vehicle speed.
Do not use the same type of instrument on the vehicle.
A.1.3 Meteorological parameter measurement
The accuracy of the thermometer shall be within ±1°C. The accuracy of the
anemometer shall be within ±1.0 m/s.
A.1.4 All measuring instruments shall be periodically inspected in accordance
with the relevant national standards for measuring instruments.
A.2 Measuring conditions
A.2.1 Measuring site
...... Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
Tips & Frequently Asked QuestionsQuestion 1: How long will the true-PDF of English version of GB 1495-2002 be delivered?Answer: The full copy PDF of English version of GB 1495-2002 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice. Question 2: Can I share the purchased PDF of GB 1495-2002_English with my colleagues?Answer: Yes. The purchased PDF of GB 1495-2002_English will be deemed to be sold to your employer/organization who actually paid 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+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GB 1495-2002 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds. Question 5: Should I purchase the latest version GB 1495-2002?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB 1495-2002 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.
How to buy and download a true PDF of English version of GB 1495-2002?A step-by-step guide to download PDF of GB 1495-2002_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD). Step 2: Search keyword "GB 1495-2002". Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart. Step 4: Select payment option (Via payment agents Stripe or PayPal). Step 5: Customize Tax Invoice -- Fill up your email etc. Step 6: Click "Checkout". Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively. Step 8: Optional -- Go to download PDF. Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice. See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9
|