GB/T 12060.1-2017 English PDFUS$339.00 ยท In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 12060.1-2017: Sound system equipment -- Part 1: General Status: Valid GB/T 12060.1: Historical versions
Basic dataStandard ID: GB/T 12060.1-2017 (GB/T12060.1-2017)Description (Translated English): Sound system equipment -- Part 1: General Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: M70 Classification of International Standard: 33.160.50 Word Count Estimation: 17,151 Date of Issue: 2017-05-31 Date of Implementation: 2017-12-01 Quoted Standard: GB/T 3240-1982; GB/T 3241-2010; GB/T 3769-2010; GB/T 3785.1-2010; GB 4943.1-2011; GB/T 5465.2-2008; GB 8898-2011; ITU-R BS 468-4-1986; IEC 60027-1; IEC 60027-2; IEC 60027-3; IEC 60027-4; IEC 60027-6; IEC 60027-7; IEC 60068-1; IEC 60068-2; IEC 60068-3 Adopted Standard: IEC 60268-1-1985, MOD 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 measurement unit of the sound system equipment, the measurement frequency, the amount to be specified and its accuracy, signs and signs and other general specifications. This standard applies to any type of sound system and its components or accessories for the sound system. GB/T 12060.1-2017: Sound system equipment -- Part 1: General---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.Sound system equipment.Part 1. General ICS 33.160.50 M70 National Standards of People's Republic of China Sound system equipment - Part 1. Overview (IEC 60268-1. 1985, MOD) 2017-05-31 released 2017-12-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China China National Standardization Management Committee released Directory Preface III 1 Scope 1 2 normative reference document 1 Measurement unit and unit system 4 Measuring frequency 1 5 the amount to be prescribed and its accuracy 2 6 logo and symbol 2 6.1 logo 2 6.2 Symbol 3 7 Noise specification and measurement filters, weighting curves and meters 3 7.1 Broadband measurement 3 7.2 Weighted measurement 3 7.2.1 Noise (A-weighted) or SNR (A-weighted) 3 7.2.2 Noise (estimated noise) or signal to noise ratio (estimated noise) 4 7.2.1 1/1 octave or 1/3 octave band measurement 4 8 analog program signal 4 9 Climatic conditions 5 10 individual specifications and typical specifications 6 Illustration of data 11.1 Overview 6 11.2 Scale 6 11.3 Logarithmic scale and polar coordinates 11.3.1 Logarithmic frequency scale 6 11.3.2 Polar Level Figure 6 12 personal safety and fire 6 Measurement of Uniform Alternating Magnetic Fields Method of generating uniform alternating magnetic field 13.2 Magnetic field strength measurement 8 13.3 Placement of sample 8 Appendix A (Normative Appendix) Noise Weighting Network and Quasi-Peak Table 9 A.1 Weighted Network 9 A.2 Measurement equipment characteristics 11 Reference 13 Figure 1 bandpass filter for wideband noise measurement Figure 2 Simulation program signal power spectrum 5 Figure 3 Filter for analog program signals (for pink noise sources) 5 Figure 4 shows the arrangement of the three coils for a uniform alternating magnetic field Figure 5 Measuring coil for measuring magnetic field strength Figure A.1 Weighted network Figure A.2 Figure A.1 shows the frequency response of the weighted network Figure A.3 Maximum allowable frequency response of the weighted network 11 Table 1 Preferred frequency 2 Table 2 shows the power spectrum of the program signal Table A.1 Response values and tolerances on the frequency points of the nominal response curve of the weighted network Table A.2 Time characteristics of measuring devices 11 Table A.3 Reading limit for each repetition frequency 12 ForewordGB/T 12060 "sound system equipment" includes the following parts. - Part 1. Overview; - Part 2. General terms for interpretation and calculation; - Part 3. Measurement methods for audio amplifiers; - Part 4. Microphone measurement method; - Part 5. Main performance test methods for loudspeakers; - Part 6. Auxiliary passive components; - Part 7. Headset measurement method; - Part 8. Automatic gain control devices; - Part 9. Artificial reverberation, time delay and frequency shift device measurement methods; - Part 10. Peak program level meter; - Part 11. Application of connectors for acoustic system equipment interconnection; - Part 12. Application of connectors for broadcast and similar sound systems; - Part 13. Speaker listening test; - Part 14. Circular and oval loudspeakers, dimensions and mounting dimensions; - Part 16. Assessment of the objective level of language intelligibility by the language transmission index (STI); - Part 17. Standard volume; - Part 18. Peak program level meter - Digital audio peak level meter. This part is part 1 of GB/T 12060. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part uses the re-drafting method to modify the use of IEC 60268-1. 1985 "Sound System Equipment Part 1. Overview" and its amendments Amd. 1. 1988 and Amd. 2. 1988. The technical differences between this part and IEC 60268-1. 1985 are as follows. - Table 1 removes the contents of 1/2 octave (see Chapter 4); - increased the use of a magnetic flux meter to measure the strength of the magnetic field (see 13.2); - Amendments to Table A.2 in accordance with IEC 60268-1. 1985 No. 1 Amendment Amd.1. 1988; - 12.1 of the original standard was modified in accordance with IEC 60268-1. 1985 No. 2 Amd.2. 1988 (see 13.1). This section makes the following editorial changes. --- Added "preface" and "normative reference document"; - the "scope" has been modified, the standard "sound system equipment" component of the content into the "preface"; --- adjust 7.2.3 to 7.3; - Added component names in Figure 3 and Figure A.1; --- deleted in Table 2 repeated 630Hz line; --- Figure 5 will be adjusted to Figure 1, the location of the chart adjusted to the relevant text, easy to read and implement the standard. Please note that some of the contents of this document may involve patents. The issuer of this document shall not be responsible for the identification of such patents. This part is made by the Ministry of Industry and Information Technology of the People's Republic of China. This part is headed by the National Committee for the Standardization of Audio, Video and Multimedia Systems and Equipment (SAC/TC242). This part of the drafting unit. Nanjing University Institute of Acoustics, China Electronic Technology Standardization Institute, Nanjing University, Shenzhen Research Institute. This part of the main drafters. Shen Yong, happy, Lu Guochao. Sound system equipment - Part 1. Overview1 ScopeGB/T 12060 is suitable for any type of sound system and its components or accessories for the sound system. GB/T 12060 by listing the characteristics of its useful features and the development of these characteristics of the unified test method, how to determine the sound system The performance of the equipment and the comparison of such equipment and how to determine its proper practical use. GB/T 12060 is limited to describing different characteristics and their corresponding measurement methods, and generally does not specify performance (except for Part 10). This part of GB/T 12060 specifies the measurement unit of the acoustic system equipment, the frequency of measurement, the amount to be specified and its accuracy, Logo and other general specification requirements. This part applies to any type of sound system and its components or accessories for the sound system.2 normative reference documentsThe following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 3240-1982 Common frequencies in acoustic measurements (neqISO 266. 1975) GB/T 3241-2010 Electromagnetism octave and fractional octave filters (IEC 61260..1995, MOD) GB/T 3769-2010 Electroacoustics Drawing frequency characteristics and scale and dimensions of polar plots (IEC 60263. 1982, IDT) GB/T 3785.1-2010 electroacoustics sound level meter - Part 1. Specifications (IEC 61672-1..2002, IDT) GB 4943.1-2011 Information technology - Equipment safety - Part 1. General requirements (IEC 60950-1..2005, MOD) Graphical symbols for electrical equipment - Part 2. Graphical symbols (IEC 60417DB..2007, IDT) GB/T 5465.2-2008 GB 8898-2011 Safety requirements for audio, video and similar electronic equipment (IEC 60065..2005, MOD) IEC 60027 (all parts) Letter symbols for electrical use (Lettersymbolstobeusedinelectricaltechnology) IEC 60068 (all parts) Basic environmental test procedures (Basicenvironmentaltestingprocedures) ITU-RBS468-4. Measurement of audio noise levels in sound broadcasting (Measurementofaudio-frequencynoise voltagelevelinsoundbroadcasting Unit of measurement and unit system The units of measurement in this section use the International System of Units (SI units).4 measuring frequencyIf the measurements are made at discrete frequencies, these frequencies shall be the preferred frequencies specified in GB/T 3240-1982 for acoustic measurements, see Table 1. If the measurement is relative to a reference frequency and there is no clear reason for negation, the frequency shall be the standard reference frequency of 1000 Hz. If the measurement uses only one signal frequency, the signal frequency should be the selected reference frequency. If the measurement is carried out at several different frequencies Should include the selected reference frequency, the other frequency should be selected so that the measurement results can fully represent the characteristics of the entire effective frequency range. If the measurement is carried out in a band with a constant relative bandwidth, the 1/1 octave frequency described in 7.3 and 1/3 Frequency. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 12060.1-2017_English be delivered?Answer: Upon your order, we will start to translate GB/T 12060.1-2017_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 12060.1-2017_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 12060.1-2017_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. 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