OSHA 1926.1153, Section XII

TABLE 1 REQUIREMENTS

These systems fall under table 1, section xii: handheld grinders for use other than mortar removal. In order to be table 1

compliant, the below requirements must be met:

• When performing outdoor applications only: use a grinder equipped with integrated water delivery system that continuously

feeds water to the grinding surface

• Use tool equipped with commercially available shroud or cowling with dust collection system

• Operate and maintain tool in accordance with manufacturer‘s instructions to minimize dust emissions

• Dust collector must provide the air flow recommended by the tool manufacturer, or greater

• Have a filter with 99% or greater efficiency and a filter-cleaning mechanism

• dust collector must provide 25 cubic feet per minute (cfm) or greater of airflow per inch of wheel diameter

Table 1 requires a respirator to be worn in certain environments based on the time of the application. Check below to see when an

APF 10 respirator must be worn.

Equipment / Task Engineering and work practice control methods

Required respiratory protections

and minimum Assigned

Protection Factor (APF)

≤ 4 hours / shift > 4 hours / shift

(xii) Handheld grinders for

uses other than mortar

removal

For tasks performed outdoors only.

Use grinder equipped with integrated water delivery system that continuously feeds

water to the grinding surface.

Operate and maintain tool in accordance with manufacturer’s instructions to minimize

dust emissions.

Use grinder equipped with commercially available shroud and dust collection system.

Operate and maintain tool in accordnce with manufacturer’s instructions to minimize

dust emissions.

Dust collector must provide 25 cubic feet per minute (cfm) or greater of airflow per inch

of wheel diameter and have a filter with 99% or greater effciency and a cyclonic pre-

separator or filter-cleaning mechanism.

None None

• When used outdoors None None

• When used indoors or in an enclosed area None APF 10