-sae j726《空气滤清器试验规范》.pdf

The Engineering Society
SURFACE
REV
For Advancing Mobilit
VEHICLE
J720
JUN93
Land Sea Air and Space
N TERNATONA L
RECOMMENDED
Issued
1941-01
400 Commonwealth Drive Warrendale. PA 15096-0001
PRACTICE
Revised
1993-06
Superseding J726 JUN87
An American National Standard
(R)AIR CLEANER TEST CODE
Foreword-this Document has not changed other than to put it into the new SAE Technical Standards Board
Format
The basic performance characteristics of greatest interest are airflow restriction or pressure drop, dust collection
efficiency, dust capacity, and air cleaner structural integrity. This test code, therefore, addresses itself to the
measurement of these parameters
The objective of the test code is to provide a uniform means for evaluating the performance characteristics of ai
cleaners on bench test equipment. The data collected by this test code can be used to establish standards of
performance for air cleaners tested in this manner. The actual field operating conditions (humidity, vibration
are controlled, and comparisons of lab performance of filters may be made with a high degree of confidenccontaminant, etc )are difficult to duplicate. However, by use of these standard test methods, the test conditions
The equipment specified in these standard tests assures that all particles of test dust are evenly dispersed
eliminating agglomerates, to a degree not possible in prior standard tests. For this reason, apparent filtration
efficiency and dust capacity by these tests can be significantly lower than if the same filter were tested by the older
methods. These results are more repeatable and reliable than the earlier test methods and correlations among
the laboratories using these methods are now possible
To simplify and improve the clarity of this test code, Section 1, covers general information and definitions
applicable to all air cleaner testing covered in this test code. Section 4 covers the testing of dry type air cleaners
normally used on automobile internal combustion engines. Section 5 covers the testing of industrial dry type air
cleaners and precleaners for mobile and stationary internal combustion engines. Section 5 covers the testing of oil
bath air cleaners used for mobile and stationary internal combustion engines
1. Scope-the air cleaner test code has been established to cover dry type and oil bath air cleaners used on
internal combustion engines and to present a uniform method of determining and reporting air cleaner
performance
1.1 Purpose-the purpose of this test code is to establish and specify uniform testing procedures, conditions
equipment, and a performance report to permit the direct laboratory performance comparison of dry type and
oil bath type air cleaners, respectively
SAE Technical Standards Board Rules prove that: This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely
voluntary, and its applicability an suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user
SAE reviews each technical report at least every five years at which time it may be reafirmed, revise, or cancelled. SAE invites your written comments and suggestions
QUESTIONS