Bluefield Manufacturing is proud to house a Part 7B Flame Test Laboratory.  We conduct approval testing for brattice cloth and ventilation tubing as required by Mine Safety and Health Administration, Approval and Certification Center. 


For more information about this service, please contact Anne Miller at 276-322-3441 or email anne@bluefieldmfg.com.


MSHA Flame Testing (without Air)

MSHA Flame Testing (with Air)

Download the complete procedure for applying for Mine Safety and Health Administration's Approval of Flame-Resistant Brattice Cloth and Ventilation Tubing according to the Code of Federal Regulations, Title 30, Part 7, Subparts A & B. It is recommended that applicants contact the Quality and Assurance & Materials Safety Division at 304-547-0400 to discuss requirements prior to submitting an application.