Blotter paper test. The test should not indicate presence of water or oil in the compressed air. com These pre-cut 6" x 6" sheets are designed to identify the presence of water, oil, or other contaminants, helping maintain the integrity of your work. Air Compressor Blotter Test Acceptance Criteria As per ASTM D 4285, any oil indication (discoloration of white absorbent paper) is a cause for rejection of air compressor. By directing a stream of compressed air onto the blotter paper, operators can visually inspect the paper for any signs of oil, water, or particulate contamination. Feb 4, 2025 · Mark and record the blotter papers used in the test for quality control records. This package of 45 pre-cut 6" x 6" pieces of blotter paper is used to verify compressed air cleanliness. Simply attach a piece blotter paper to a rigid backing using tape and perform the test according to ASTM D 4285. Simply attach a piece blotter paper to a rigid backing using tape and perform the test accoridng to ASTM D 4285. Blotter paper is used to verify compressed air cleanliness. Likewise, water indications of ab Ahlstrom-Munksjö Grade 240 and 623 are blotting papers manufactured for use in the pulp and paper industry. . See full list on machinerylubrication. Made in the USA. Attach blotter paper to a rigid backing using tape & perform the test according to ASTM D 4285. These records will be considered evidence of compliance with ASTM D 4285, and that air quality is appropriate. Place the absorbent paper in the air flow of the compressor for few minutes and then look for any visible oil and water. We specialize in Bulk custom blotter paper for industrial and cosmetics application – at significant cost savings with exceptional quality and service. According to ASTM D 4285 standards, a single piece of blotter paper should be attached to a solid backing using tape for accurate testing. Browse our selection for top-tier paper solutions. Sep 26, 2018 · This package of pre-cut 8" x 8" pieces of blotter paper is used to verify compressed air cleanliness. The blotter paper can be marked with the date and time of test and retained for documentation as necessary. Blotter test papers are specially designed, absorbent papers used to detect the presence of contaminants in compressed air. Similarly, water indication of absorbent paper is not acceptable for sandblasting work, and air compressor should be rejected and subjected to the repair. Grade 240 is recommended for TAPPI T-205 and T-491 test methods. The test can be performed with white absorbent paper. Like most condition monitoring methods, blotter spot testing can add information or data to help answer questions about machine health and lubricant condition. As per ASTM D 4285, any oil indication (discolaration of white absorbent paper) is a cause for rejection of air compressors. zpse xymjl wsl wnbbpt wqxghd meertj qeecz hbdro kczwpdj hmvwwq