SAE J997-2000 pdf download Spark Arrester Test Carbon
Scope-This SAE Standard establishes physical properties required of SAE Coarse Test Carbon and SAEFine Test Carbon and establishes test methods to ensure that these requirements are met.
Purpose-The purpose of this document is to establish specifications for test carbon to be used whenperforming the tests described in SAE J335,J342and J350
References
2.1Applicable Publications–The following publications form a part of the specification to the extent specifiedherein. Unless otherwise indicated, the latest revision of SAE publications shall apply.
2.1.1SAE PUBLICATIONS-Available from SAE,400 Commonwealth Drive, Warrendale, PA 15096-0001.
SAE J335-Multiposition Small Engine Exhaust System Fire lgnition SuppressionSAE J342-Spark Arrester Test Procedure for Large Size EnginesSAE J350-Spark Arrester Test Procedure for Medium Size Engines
2.1.2 ASTM PUBLICATIONS-Available from ASTM100 Barr Harbor Drive, West Conshohocken, PA19428-2959.
2.1.3 ASTM D 2854-Standard Test Method for Apparent Density of Activated CarbonASTM D 2862–Test Method for Particle Size Distribution of Granular Activated CarbonASTM D 3467-Test Method for Carbon Tetrachloride Activity of Activated CarbonASTM D 3802-Standard Test Method for Ball-Pan Hardness of Activated CarbonASTM E11-Standard Specification for Wire Cloth Sieves for Testing Purposes
USDA FOREST SERVICE PUBLICATION-Available from USDA Forest Service, Technology and DevelopmentCenter,444 East Bonita Avenue,San Dimas,CA 91773-3198
Spark Arrester Test Carbon Replacement Study, January 1991, USDA Forest Service
3. Test Carbon Requirements
3.1 Form—The test carbon shall be granular in form.
3.2 Size—The size distribution of particles of test carbon shall be as follows:
3.2.1 C OARSE C ARBON
a. Pass through U.S. Standard No. 8 (2.36 mm) Sieve—1 00% by mass
b. Retained on U.S. Standard No. 1 2 (1 .70 mm) Sieve—60% by mass
c. Retained on U.S. Standard No. 1 6 (1 .1 8 mm) Sieve—40% by mass
3.2.2 F INE C ARBON
a. Pass through U.S. Standard No. 1 6 (1 .1 8 mm) Sieve—1 00% by mass
b. Retained on U.S. Standard No. 20 (850 µm) Sieve—70% by mass
c. Retained on U.S. Standard No. 30 (600 µm) Sieve—30% by mass
3.2.3 M IXING —Before use, mix screened fractions by pouring from one container to another at least five times.
3.3 Activity—The test carbon shall conform to the commercial definition of “activated carbon.”
3.4 Apparent Density—0.450 to 0.520 g/mL when vibrated to a minimum volume (see 4.1 ).
3.5 Hardness—97.0% minimum (see 4.2).
3.6 Carbon Tetrachloride Activity—60% minimum (see 4.3).
4. Test Methods
4.1 Apparent Density—Determine the apparent density of the test sample, in accordance with ASTM Test Method D 2854.
4.2 Hardness—Determine the carbon particle hardness of the test sample, in accordance with ASTM Test Method D 3802.
4.3 Carbon Tetrachloride Activity—Determine the carbon tetrachloride activity of the test sample, in accordance with ASTM D 3467.