GB/T 9397-2013 English PDFUS$399.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 9397-2013: General specification for electrodynamic loudspeaker of direct radiator type Status: Valid GB/T 9397: Historical versions
Basic dataStandard ID: GB/T 9397-2013 (GB/T9397-2013)Description (Translated English): General specification for electrodynamic loudspeaker of direct radiator type Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: M72 Classification of International Standard: 33.160.10 Word Count Estimation: 17,134 Older Standard (superseded by this standard): GB/T 9397-1996 Quoted Standard: GB/T 2423.28-2005; GB/T 2828.1-2012; GB/T 2829-2002; GB/T 12060.5-2011; SJ 42-1977; SJ 144-1982; SJ 1276-1977; SJ 1277-1977; SJ 1278-1977; SJ 1279-1977; SJ 1280-1977; SJ 1281-1977; SJ 1282-1977; SJ 1283-1977; SJ 1284-1977; SJ 1285-1977 Regulation (derived from): National Standards Bulletin No. 22 of 2013 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 direct radiant electric loudspeaker product classification, requirements, test methods, inspection rules, marking, packaging, storage and transportation. This standard applies to broadcast radio, television broadcast receivers, GB/T 9397-2013: General specification for electrodynamic loudspeaker of direct radiator type---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.General specification for electrodynamic loudspeaker of direct radiator type ICS 33.160.10 M72 National Standards of People's Republic of China Replacing GB/T 9397-1996 Direct radiation loudspeaker General Electric specifications Issued on. 2013-11-12 2014-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard replaces GB/T 9397-1996 "direct radiation electric speaker Universal norms." The main changes compared to the "direct radiant electric speaker Universal norms" This standard and GB/T 9397-1996 as follows. --- Chapter 1 scope, "This standard applies to radio broadcasting, television broadcasting receivers, tape recorders and similar electronic products, electricity Acting speaker "to" This standard applies to radio broadcasting, television broadcasting receivers, tape recorders, home media equivalent Electronics electric speaker "; --- References GB/T 12060.5-1996 provisions to the GB/T 12060.5-2011 the terms; --- 3.1 "name", 3.2 "form factor" increase "product standard may also be" content; --- 4.3.1.1 Rated impedance value preferably in series to increase the "6Ω" preferred value; --- 4.3.6, rated characteristic sensitivity level by the maximum permissible deviation ± 3dB to ± 2dB. Remove "Note. For subject selection for pairing Should stereo system speakers, each speaker characteristics of relatively poor sensitivity level is not more than 2dB. "; --- 4.3.7, rated total harmonic distortion 1.2fo \u003cf ≤500Hz时,删去“≤15%”;500Hz\u003cf ≤5000Hz时,删 To ≤10%; --- 4.4.2 raise, "according to the speaker's purpose and requirements of users for testing, the location and number of measuring points by the product standard gauge set"; --- 4.4.3, stray magnetic field unit using A/m, and filling the scope of application; --- 4.5.7, the increase change in the nominal resonant frequency should not exceed 20%; --- 5.2, the content of the listening test is based on GB/T 12060.5-2011 revision of Appendix D, Table 7 deletes the listening test Class C unqualified; --- Table 3 for measuring the resonant frequency of the filling method, specifies the measurement voltage; --- Table 6 test level in Group C to S-2, A class of nonconforming product by the AQL 1.0 to 2.5, delete the square brackets AQL Value and note; --- Notes to Table 7 "Manufacturers stray magnetic field can be determined for various uses speakers and withstanding voltage items according to user requirements." The standard proposed by the Ministry of Industry and Information Technology of the People's Republic of China. This standard by the national audio, video and multimedia systems and equipment Standardization Technical Committee (SAC/TC242) centralized. Drafting of this standard. Jiangsu Electronic Information Products Quality Supervision and Inspection Institute, Nanjing University Institute of Acoustics, Guoguang Electric CO., LTD. The main drafters. Zhang Zhiqiang, Shen Yong, Yu Jin-yuan, Chen Jia sound. This standard replaces the standards previously issued as follows. --- GB/T 9397-1988, GB/T 9397-1996. Direct radiation loudspeaker General Electric specifications1 ScopeThis standard specifies the direct radiation electric loudspeaker product classifications, requirements, test methods, inspection rules, marking, packaging, storage and transport. This standard applies to radio broadcasting, television broadcasting receivers, tape recorders, home media and other similar electronic products with electric Jan Microphone.2 Normative referencesThe 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 2423.28-2005 Environmental testing for electric and electronic products Part 2. Test methods - Test T. Soldering GB/T 2828.1-2012 Sampling procedures for inspection - Part 1. by acceptance quality limit (AQL) retrieval batch test sample plan GB/T 2829-2002 periodic inspection Sampling procedures and tables (suitable for process stability test) GB/T 12060.5-2011 Sound system equipment - Part 5. Methods for measuring performance main speaker Categories SJ42-1977 metal plating and chemical treatment layer, features, applications and marking SJ144-1982 electro-acoustic devices of type designation SJ1276-1977 metal plating and chemical treatment layer quality inspection technical requirements SJ1277-1977 metal plating and chemical treatment layer quality inspection acceptance criteria Test methods SJ1278-1977 metal plating and chemical treatment of the outer layer Test methods SJ1279-1977 metal coating hardness Test methods SJ1280-1977 metal coating porosity SJ1281-1977 metal plating and chemical treatment layer thickness testing methods Test methods SJ1282-1977 metal coating adhesion SJ1283-1977 metal coating and corrosion test methods for chemical treatment layer SJ1284-1977 metal coating corrosion test results Evaluation Method Test Method SJ1285-1977 aluminum and aluminum oxide treated layer of electrical insulation properties Category 3 3.1 Naming Press SJ144 regulations, but also by product standards. 3.2 Dimensions According to the relevant product standard. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 9397-2013_English be delivered?Answer: Upon your order, we will start to translate GB/T 9397-2013_English as soon as possible, and keep you informed of the progress. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 9397-2013?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 9397-2013 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. |
