LAC 33:III.1327. Blasting Operations

A. Abrasive Materials and Methods 1. Material derived from hazardous, toxic, medical, and/or municipal waste is prohibited from use as abrasive material. 2. Abrasives shall contain less than 10 percent (by weight) of fines that would pass through a No. 80 sieve as documented by the supplier. If supplier documentation is not provided for weight percent of fines in abrasive material, samples shall be taken according to ASTM standard ASTM D 75-03 before initial use. 3. Abrasives shall not be reused for abrasive blasting unless they meet the requirements of Paragraph A.2 of this Section. B. The following abrasives and blasting methods are exempt from the provisions of Paragraph A.2 of this Section and LAC 33:III.1329.A and F and LAC 33:III.1333.A.4-5: 1. abrasive blasting using iron or steel shot/grit; 2. abrasive blasting using CO2; 3. hydroblasting or wet abrasive blasting; 4. vacuum blasting; and 5. abrasive blasting using other abrasives, as approved by the department on a case-by-case basis.