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GB/T 21230-2014 English PDF

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Q: Should I purchase the latest version GB/T 21230-2014?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 21230-2014 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$774.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 21230-2014: Acoustics -- Determination of occupational noise exposure -- Engineering method
Status: Valid

GB/T 21230: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 21230-2014	774	Add to Cart	3 days	Acoustics -- Determination of occupational noise exposure -- Engineering method	Valid
GB/T 21230-2007	RFQ	ASK	4 days	Acoustic environment noise exposure measurement and evaluation guidelines	Obsolete

Similar standards

GB/T 20247 GB/T 19889.1 GB/T 19890 GB/T 20243.2 GB/T 21231.2 GB/T 21231.1

Basic data

Standard ID: GB/T 21230-2014 (GB/T21230-2014)
Description (Translated English): Acoustics -- Determination of occupational noise exposure -- Engineering method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A59
Classification of International Standard: 17.140
Word Count Estimation: 39,353
Date of Issue: 9/3/2014
Date of Implementation: 2/1/2015
Older Standard (superseded by this standard): GB/T 21230-2007
Quoted Standard: GB/T 3785.1-2010; GB/T 15173-2010; GB/T 15952-2010; ISO/IEC GUIDE 98-3; ISO 1999
Adopted Standard: ISO 9612-2009, IDT
Regulation (derived from): People's Republic of China Announcement of Newly Approved National Standards No. 21 of 2014
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 noise measurement staff in the work environment exposure and calculate the sound exposure level project-level approach. This Standard uses the A-weighted sound level, but can also be C-weighted sound level. Standard specifies t

GB/T 21230-2014: Acoustics -- Determination of occupational noise exposure -- Engineering method

---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. Determination of occupational noise exposure. Engineering method ICS 17.140 A59 National Standards of People's Republic of China Replacing GB/T 21230-2007 Engineering method acoustic occupational noise exposure (ISO 9612.2009, IDT) Issued on. 2014-09-03 2015-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Preface Ⅰ Introduction Ⅱ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 Symbol 3 5 Instruments 5 Step 6 general method --- chronological 5 6 7 Job Analysis Select 7 8 measurement programs 9 Scenario 1 --- 7 based on the measurement job Scenario 2 10 --- 10 types based on measurements Scenario 3 11 --- 11-day measure 12 measures 12 13 Source of Uncertainty 13 14 Measurement Uncertainty Calculation and presentation of the final results of 14 Content report 15 14 Found in Appendix A (informative) List of assurance during sample analysis of 16 significant noise events Annex B (informative) Guidelines for selecting the measurement program 17 Annex C (normative) Measurement Uncertainty Estimation 20 Annex D (informative) based on daily operations measured sound level exposure calculation example 26 Annex E (informative) day trades based on the measured sound level exposure calculation example 29 Day Appendix F (informative) day exposure to sound level measurement sample count 31 References 34

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard replaces GB/T 21230-2007 "Acoustics workplace noise exposure measurement and evaluation guidelines." versus GB/T 21230-2007 compared to the main changes are as follows. --- The guide is specific, rose to occupational noise exposure - Engineering method of determination; --- Engineering method only effect of noise on hearing loss for other than on hearing shall not be taken into account; --- Use only A-weighted equivalent continuous sound level and sound exposure level evaluation of the amount, the amount does not involve other evaluation guidelines mentioned. This standard uses the translation method identical with the international standard ISO 9612.2009 "Acoustics - Determination of occupational noise exposure - Engineering method." Correspondence between the consistency of the standards of international documents and normative references of the following documents. --- Hearing impairment evaluation GB/T 14366-1993 Acoustics occupational noise-induced noise (ISO 1999.1990, IDT) 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, Anhui Vocational and Technical College, Tongji University, Beijing Labor Protection Science Research The long Shaao Bang Industrial Co., Ltd. of environmental protection. The main drafters of this standard. Chengming Kun, Lvya Dong, Tian Jing, Li Xiaodong, Baojun Yao, Mao Dongxing, Wu Yu Zhou, Zhang Bin, Lee Hyo wide, Mo Jian Yan, Xu Xin, Diao Yin. This standard replaces the previous release case. --- GB/T 21230-2007.

Introduction

This standard provides a method for determining occupational noise exposure according to noise level measurements step by step method. Including the steps of. job analysis, Measurement program selection, measurement, error handling and uncertainty assessment, calculation and presentation of results. This standard specifies three different measurements Programme. measurement operation based on measurements and measurement-day trades. This standard provides for specific work and how research projects To select the appropriate measurement programs guide. Meanwhile, the standard also can be calculated given the uncertainty of the measurement results and the data of the data table. The standard approved handheld sound level meter and use personal sound exposure meter. Optimization method prescribed steps to achieve a given accuracy. Engineering method acoustic occupational noise exposure

1 Scope

This standard specifies the noise measurement staff in the work environment exposure and exposure to sound level computing project-level approach. This standard uses A-weighted sound level, but may also be C-weighted sound level. Standard specifies three different methods of measurement. The method is suitable for noise-level requirements engineering Exposure measurement occasions, such as epidemiological studies detailed study of noise exposure, hearing damage and other harmful effects. Measuring process requires observation and analysis of noise exposure conditions to be able to control the quality of measurements. This standard also provides estimates Uncertainty count method. This standard does not verbal communication to assess the effect of masking, nor the non-auditory impact infrasound, ultrasound and noise to be evaluated. The standard Registration does not apply to wearing hearing protectors when noise exposure measurement of the human ear. According to the measurement results obtained in this standard can provide useful information to optimize noise control measures.

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 3785.1-2010 Electric Acoustic Sound Level Meters Part 1. Specification (IEC 61672-1.2002, IDT) GB/T 15173-2010 electric acoustic sound calibrator (IEC 60942.2003, IDT) GB/T 15952-2010 electro-acoustics specifications for personal sound exposure meters (IEC 61252.2002, IDT) ISO /IEC Guide98-3 Measurement Uncertainty - Part 3. Guide to the Expression of Uncertainty in Measurement [Uncertaintyofmeas- urement-Part 3. Guidetotheexpressionofuncertaintyinmeasurement] ISO 1999 assessment of acoustic noise-induced hearing loss (Acoustics-Estimationofnoise-inducedhearingloss)

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 A time-weighted average sound pressure level A-weightedtime-averagedsoundpressurelevel Lp, A, T A weighted equivalent continuous sound pressure level A-weightedequivalentcontinuoussoundpressurelevel Lp, A, eqT A-weighted sound pressure pA in the square of a sustained period of time T (from time t1 to time t2 termination) time average of the reference sound Base 10 of 10 times the logarithm of the square of the ratio of the pressure value p0 is expressed in dB, namely. Lp, A, T = Lp, A, eqT = 10lg T∫ t2 t1 p2A (t) dt êê úú2 (1) Where. Reference sound pressure p0 = 20μPa. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 21230-2014_English be delivered?

Answer: Upon your order, we will start to translate GB/T 21230-2014_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 GB/T 21230-2014_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 21230-2014_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 21230-2014?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 21230-2014 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.