La. Admin. Code tit. 33 § III-1327

Current through Register Vol. 50, No. 6, June 20, 2024

Section 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.

La. Admin. Code tit. 33, § III-1327

Promulgated by the Department of Environmental Quality, Office of the Secretary, Legal Affairs Division, LR 33:822 (May 2007), amended LR 35:1234 (July 2009).

AUTHORITY NOTE: Promulgated in accordance with R.S. 30:2054(B)(1).