JB/T 9755-1999 JB/T 9755-1999 Technical requirements for paper filter element air filter assemblies for internal combustion engines JB/T9755-1999 Standard download decompression password: www.bzxz.net

rC.S 27.020
Machinery Industry Standard of the People's Republic of China
JB/T9755-1999
Internal combustion engines---Paper element air filter assembliesSpecifications
Published on September 17, 1999
National Bureau of Machinery Industry
Implemented on January 1, 2000
JB/T9755-1999
This standard is a revision of NJ429-86 "Technical Specifications for Paper Element Air Filter Assemblies for Internal Microcomputers". Editorial modifications were made to the original standard at the time of revision, and the main technical content remained unchanged. This standard replaces 429-6 from the date of implementation. This standard is listed in the appendix as indicated in the A quantity data.
This standard was proposed and managed by the National Internal Combustion Engine Standardization Technical Committee. The drafting unit of this standard: Shanghai Internal Combustion Engine Research Institute. The main drafter of this standard: Zhang Shaojie.
This standard was first issued in 1996.
Machinery Industry Standard of the People's Republic of China
Technical Conditions for Paper Filter Element Air Filter Assemblies for Internal Combustion Engines
[Nterial cambustiop ernginesPaper-elemcent air filter assembliesSpecitications
1 Scope
JB/T 9755-1999
Agent N1429—Product
This standard specifies the technical requirements, test methods and inspection rules and markings for paper filter element air filter assemblies for internal combustion engines, including selection and storage,
This standard is applicable to paper filter element air filter assemblies for internal combustion engines with a volume flow rate of less than 4000m/min (hereinafter referred to as "assemblies"). 2 Cited Standards
The provisions of the following standards are incorporated into the text of this standard by reference in this standard. When this standard was published, the specifications shown were valid. All standards will be revised. Parties using this standard should explore the possibility of using the latest version of the following standards; 18/T9747-1999
JHT9756—1999
3 Short requirements
Internal combustion engine, air filter, test method Technical conditions for internal combustion engine air filter cylinder leak element 3.1 The total heat treatment shall be manufactured according to the product batch sample and technical documents approved by the prescribed procedures. The technical requirements shall comply with the provisions of this standard. 3.2 Under the rated air volume flow, the original power supply of the assembly shall comply with the provisions of Table 1. :
Internal effect
Single stage total fatigue
Double (multi) design
Single stage assembly
Total Wu original resistance
Does not have some double (parent) some total certification
It has some wine travel purpose double (passenger) stage total war giant calcium or shaft still rotary certification tube modification (multi) relay assembly 3. "Under rated air (body secret flow and, the assembly original filtration efficiency is not less than 9.5%, #2 5n
3. Under the condition of certain air volume flow, the coarse filtration efficiency of various types of coarse filters shall meet the requirements of Table 2.
3.5 Under the condition of certain air volume, when the assembly resistance reaches the blocking resistance or the assembly filtration efficiency drops to the specified value, the assembly test chamber life shall meet the requirements of Table 3.
Approved by China Machinery Industry on September 17, 1999
200m-01-01 Implementation
Internal combustion engine number
Shear type roughing device
ET9755-1999
Pot type, blade ring type and tangential through-air type piercing device
Creative recovery source pipe and axial flow cabinet artifact table 3
Single post total industry
Does not have a double (multi) fine assembly of the flow pipe roughing device and has a flow pipe orange detail required double (multi) stage total collection difference with a relatively large flow pipe roughing double "multi" stage total confusion 11-2 from the internal combustion engine assembly block case end resistance is 2942P2 stop and more than 3 certificate internal combustion engine assembly No plug end resistance for 4a. 3 filling floating Vietnam efficiency drop judgment 99.0%. 3.6 assembly internal cleanliness meets the requirements of formula (1): M,EC ON
Where: M-internal cleanliness degree of the assembly, mg: 9-rated air volume of the assembly, m/%lWhen <0m, it is m
Dust dependence during filtration efficiency test, m
Comparative leakage efficiency
Total area test weight
3.7 Each sealing part of the assembly should be reliably sealed. After the filtration efficiency test or the assembly test, each sealing part should be free of traces.bzxz.net
3.8 The surface of the metal parts used in the assembly should be completely rust-proofed. 3.9 The outer surface of the assembly should be free of obvious scratches, defects such as hair growth, burrs and burrs. The coating and plating should be free of color loss and fading. 3.0 The paper filter used inside the assembly should comply with the heat setting of B plate 9756. 4 Test methods and inspection rules
4.1 Product performance test method 4.2 Each product shall be inspected by its inspection department at the factory, and a certificate of quality shall be issued after it is qualified. 4.3 When the unit of delivery inspects the product quality, the total number of random inspections shall not exceed 0.1% of the number of each batch of delivery, and the value shall not exceed 15 pieces. If there are any unqualified items in the random inspection results, double the number of items shall be inspected; if there is still one unqualified item, it shall not be received within the specified period. 5. Marking, packaging, transportation, storage 5.1: Each product shall be marked with the manufacturer's name, factory logo, product name, model and instructions for use and maintenance. 5.2 Each product shall be packed in a dry packaging box with moisture-proof materials and a product certificate with the inspector's seal shall be attached. 5.3 The production packaging of the product shall ensure that the product will not be damaged during normal transportation. 5.4 The appearance of the box should be marked with:
Manufacturer name and address:
b) Product name and model:
) Export period (year, piece)
d) Volume (limited × charge × height), mn:
Material;
Door number:
) Receiving unit and station:
h) "Moisture-proof", "Handle with care" and other signs. 5. The finished products are placed in a warehouse that is not ventilated and ventilated. Under normal storage conditions, the manufacturer guarantees that the products will not rust, the filter element will not rot, and the cavity will not fall out within 12 consecutive months from the date of production. Creative visual air!
Finger type energy filter
Buy air intake type coarse filter
3B/T 97551999
Appendix A
【Appendix for reminder】
Type of filter frame
Blade ring
Blade ring type pressure filter
Benefit filter
Tangential follow-up type
Through plastic flow type
Force wave end
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