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QC/T 970-2014

Chinese Standard: 'QC/T 970-2014'
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BASIC DATA
Standard ID QC/T 970-2014 (QC/T970-2014)
Description (Translated English) Passenger car air filter technical specification
Sector / Industry Automobile & Vehicle Industry Standard (Recommended)
Classification of Chinese Standard T13
Classification of International Standard 43.060.20
Word Count Estimation 19,146
Date of Issue 2014/5/6
Date of Implementation 2014/10/1
Quoted Standard GB/T 2298-1991; GB/T 2423.56-2006; GB/T 2423.58-2006; GB 3240; GB/T 3241-1998; GB/T 3730.1-2001; GB/T 3785.1-2010; GB/T 3947-1996; GB/T 4760-1995; GB/T 6881.1-2002; GB 8410-2006; GB/T 10125-1997; GB/T 14656-2009; GB/T 15173; QC/T 32-2006; ISO 5011-2000; I
Drafting Organization China First Automobile Shares Co., Ltd. Technology Center
Administrative Organization National Automotive Standardization Technical Committee
Regulation (derived from) Ministry of Industry and Information Technology - Announcement 2014 No 32.
Issuing agency(ies) Ministry of Industry and Information Technology of the People's Republic of China
Summary This Standard specifies the technical requirements for passenger car air filter and filter, test methods, inspection rules, filter air filter as a core element of all its technical requirements are applicable to the air filter. This Standard applies to th

QC/T 970-2014
QC
AUTOMOTIVE INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 43.060.20
T 13
Passenger car air filter technical specification
乘用车空气滤清器技术条件
ISSUED ON. MAY 6, 2014
IMPLEMENTED ON. OCTOBER 1, 2014
Issued by. Ministry of Industry and Information Technology of the
People’s Republic of China.
Table of Contents
Foreword ... 7 
Introduction ... 8 
1 Scope ... 10 
2 Normative references ... 10 
3 Terms and definitions ... 11 
4 Requirements ... 12 
5 Test methods ... 15 
6 Inspection rules ... 22 
Annex A (Normative) Test devices ... 24 
Appendix.
Number, name, and date of implementation of 32 automotive industry
standards
No. Standard number Standard name
Number of
standard replaced
Date of
implementation
1 QC/T 231-2014 Specification of kick-starter for motorcycles and mopeds QC/T 231-1997
October 01,
2 QC/T 233-2014
Performance and measurement
method for static intensity of
motorcycles and mopeds
QC/T 233-1997 October 01, 2014
3 QC/T 66-2014 Wet clutch for moped and motorcycles QC/T 66-1993
October 01,
4 QC/T 962-2014 Technical specifications for coating of motorcycles and moped
October 01,
5 QC/T 680-2014
General technical specifications for
voltage regulators for motorcycles and
moped
QC/T 680-2002 October 01, 2014
6 QC/T 963-2014 Drum brakes of motorcycles and mopeds wheels
October 01,
7 QC/T 234-2014
General technical specifications for
steering shaft for motorcycles and
moped
QC/T 234-1997 October 01, 2014
8 QC/T 964-2014 The strength of plastic seats and their anchorages for city buses
October 01,
9 QC/T 644-2014 Technical specifications for automotive metallic fuel tank
QC/T 644-2000
QC/T 488-2000
October 01,
10 QC/T 965-2014 Driver of electric rear-view mirrors for motor vehicles
October 01,
11 QC/T 966-2014 Technical specifications for automotive plastic parts coatings
October 01,
12 QC/T 459-2014 Truck with loading crane QC/T 459-2004 October 01, 2014
13 QC/T 29106-2014
Technical specification of automobile
wire harness QC/T 29106-2004
October 01,
14 QC/T 198-2014 General technical specification for automotive switch QC/T 198-1995
October 01,
15 QC/T 220-2014 Technical specifications for automotive fusible links QC/T 220-1996
October 01,
16 QC/T 967-2014 Port fuel injector for gasoline engine October 01, 2014
17 QC/T 968-2014
Determination methods of platinum,
palladium and rhodium contents in
metallic catalytic converters
October 01, 2014
18 QC/T 969-2014 Interior truck release for compartment of a passenger car
October 01,
19 QC/T 636-2014 Electric window regulator specification for vehicles QC/T 636-2000
October 01,
20 QC/T 970 2014 Passenger car air filter technical specification
October 01,
21 QC/T 971-2014 Specification of air filter element for motorcycles and scooters
October 01,
22 QC/T 972-2014
Technical requirements and test
method for motor vehicle-
electronically controlled hydraulic
power steering gear
October 01, 2014
23 QC/T 299.1-2014
Automotive hydraulic steering power
pump – Part 1. Technical
requirements
QC/T 299-2000 October 01, 2014
24 QC/T 299.2-2014
Automotive hydraulic steering power
pump – Part 2. Test methods QC/T 299-2000
October 01,
25 QC/T 563-2014 Performance and test methods for automobile steering wheel QC/T 563-1999
October 01,
26 QC/T 29097-2014
The technical specifications of
automobile steering gear QC/T 29097-1992
October 01,
27 QC/T 29096-2014
The bench test methods of
automobile steering gear QC/T 29096-1992
October 01,
28 QC/T 303-2014
Technical requirements and test
methods for motor vehicles oil
reservoir
QC/T 303-1999 October 01, 2014
29 QC/T 301-2014
Technical requirements and test
methods for motor vehicles power
cylinder
QC/T 301-1999
QC/T 302-1999
October 01,
30 QC/T 70-2014
Measurement method of acoustic
noise for engines of motorcycles and
mopeds
QC/T 70-1993 October 01, 2014
31 QC/T 226-2014
Specification of brake shoes
assembly and brake lining assembly
for motorcycles and moped
QC/T 226-1997 October 01, 2014
32 QC/T 593-2014
Performance requirements and bench
test methods of automobile hydraulic
proportional valve
QC/T 593-1999 October 01, 2014
Introduction
There is no corresponding international standard, foreign standard, national
and industry standard with regard to passenger car air filter technical
specification. Both domestic and foreign automobile companies and air filter
manufacturers have developed technical specifications for their respective
enterprises and models. Therefore, there are differences in main properties,
technical parameters and test methods. In order to improve the industry
standard system of automobile filters, to drive the technological progress of air
filters for passenger cars, and to promote trade and communication, it is
necessary to formulate this Standard.
The primary function of the air filters for passenger cars is to clean and filter the
air entering the engine for combustion. In view of the distinguishing features
such as combustion modes of the gasoline engines, diesel engines and gas
engines equipped for passenger cars, calorific value and density of fuel, vehicle
maintenance cycle, reliability mileage, etc., while maintaining the contents of
conventional filter function index, the disparity index was determined for the two
properties of full-life filter efficiency and ash storage capacity, respectively.
One of the main functions of the air filters for passenger cars is to eliminate
engine intake noise, which has played an important role in reducing the vehicle
pass-by noise and noise inside automobile. In the past, the acoustic attenuation
performance of the air filters for passenger cars was normally evaluated on the
engine bench or full vehicle under prescribed conditions. Test operation is
difficult, and the test results affected by the noise sources are lack of
comparability. Therefore, the requirements for such technology are almost
vacant in relevant domestic standards and product drawings. In this case, it is
particularly looking forward to developing adaptive technical requirements and
test methods for intake silencing performance, based on the noise elimination
characteristics of the passenger car air filter structure. This Standard describes
the performance requirements and test methods for sound-transmission loss
and surface radiation noise of the air filters for passenger cars, by using white
noise as the noise source and adopting the latest measurement principle of
two-load method, in order to fill the vacancy and build the technical framework.
With regard to air filters for passenger cars, the vibration fatigue test is mainly
used to avoid failure and damage caused by fatigue; the fixed-frequency
sinusoidal vibration test is simple to control and easy for test operation, but it
cannot reflect the real state of mechanical vibration environment of the air filter.
Consequently, according to the application of air filters in the passenger cars, it
is recommended that two test methods of sinusoidal vibration and sinusoidal-
random composite vibration, with different requirements for vibration severity,
Passenger car air filter technical specification
1 Scope
This Standard specifies the technical requirements, test methods and
inspection rules of the air filters for passenger cars (hereinafter referred to as
air filters) and the filter elements. Since filter element is the core element of the
air filter, all the technical requirements thereof are applicable to the air filter.
This Standard is applicable to the air filters for passenger cars and filter
elements with a volume flow of below 900m3/h. Other air filters and filter
elements may use this Standard for reference.
2 Normative references
The following documents are essential to the application of this document. For
dated references, only the editions with the dates indicated are applicable to
this document. For undated references, only the latest editions (including all the
amendments) are applicable to this document.
GB/T 2298-1991 Mechanical vibration and shock - Terminology
GB/T 2423.56-2006 / IEC 60068-2-64.1993 Environmental testing for electric
and electronic products - Part 56. Test methods - Test Fh. Vibration, broad-
band random (digital control) and guidance
GB/T 2423.58-2008 / IEC 60068-2-80.2005 Environmental testing for electric
and electronic products - Part 58. Test methods - Test Fi. Vibration - Mixed
mode
GB 3240 Preferred frequencies for the acoustical measurement
GB/T 3241-1998 Octave-band and fractional-octave-band filters
GB/T 3730.1-2001 Motor vehicles and trailers - Types - Terms and definitions
GB/T 3785.1-2010 ......
Related standard:   QC/T 968-2014  QC/T 771-2017
Related PDF sample:   QC/T 771-2017  QC/T 644-2014
   
 
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