Silica Submission 6907
Job Description
drilling vertical holes into concrete slab with 7/8" bit
Type of Work
Drilling
Control Methods
Natural Ventilation
Sampling Type
Personal
Environment
Open Sided (free flow)
Lab Report ID
1191474
Total Sample Time
120minutes
Webform Submission
Sampling Results RCS
25
Time Weighted Average
6.25
Base Material
Concrete
Submission ID Only
6907
Matching Base Material
Concrete
Matching Type of Work
Drilling