JB/T 51113-1999
Product quality grading of engine air filter assembly
Product quality grading of engine air filter assembly
Catalogue
Scope, References, Grading, Test, Inspection
Scope
Air filter production, factory inspection, batch grading
Applicable to engine air filter assembly quality grading
Normative References
Keywords
Engine
air filter
quality grading
filtration efficiency
life
Application Summary AI generated
1. Three grades: Qualified, First-class, High-class
2. Core indexes: filtration efficiency, initial resistance, life
3. Standardizes environmental and durability test
4. Adopts GB/T 2828 sampling scheme.
Standard Timeline
replaces
JB/T 51113.1
replaces
51113.3-94
Related Standards
JB/T 6728.2-2008
Internal combustion engines - Camshafts - Part 2: Wedge-cross rolling blanks
JB/T 51185-1999
Volute Mixed-Flow Pump - Product Quality Grading (Internal Use)
JB/T 51116-1999
Internal combustion engines - Oil pumps - Product quality grading (Internal use)
JB/T 51119-1999
Internal combustion engines - Valve tappets - Product quality grading (Internal use)
JB/T 51114-1999
Internal combustion engines - Cooling water pumps - Product quality grading (Internal use)
JB/T 51117-1999
Internal Combustion Engines - Valve Seat - Product Quality Grading (Internal Use)
JB/T 51111-1999
Internal combustion engines - Paper element oil filter assemblies - Product quality grading (Internal use)
JB/T 51115-1999
Diesel engines - Hydraulic speed governors - Product quality grading (Internal use)
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.