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GB/T 9397-2013: General specification for electrodynamic loudspeaker of direct radiator type
Status: Valid GB/T 9397: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 9397-2013 | English | 399 |
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3 days [Need to translate]
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General specification for electrodynamic loudspeaker of direct radiator type
| Valid |
GB/T 9397-2013
|
| GB/T 9397-1996 | English | 599 |
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4 days [Need to translate]
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General specification for electrodynamic loudspeaker of direct radiator type
| Obsolete |
GB/T 9397-1996
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| GB 9397-1988 | English | 239 |
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2 days [Need to translate]
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General specification for electrodynamic cone loudspeaker of direct radiator type
| Obsolete |
GB 9397-1988
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PDF similar to GB/T 9397-2013
Basic data | Standard 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| M72 | | Classification of International Standard | 33.160.10 | | Word Count Estimation | 17,134 | | Older Standard (superseded by this standard) | GB/T 9397-1996 | | Quoted Standard | GB/T 2423.28-2005; GB/T 2828.1-2012; GB/T 2829-2002; GB/T 12060.5-2011; SJ 42-1977; SJ 144-1982; SJ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
Foreword
This 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 specifications
1 Scope
This 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 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 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.
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