A state mass tort judge has been asked to recuse herself from asbestos injury suits after she failed to disclose a family member’s involvement in a case she is hearing.

Lawyers for BASF Catalysts filed a motion Tuesday asking Middlesex County Superior Court Judge Ana Viscomi to recuse and disqualify herself from multicounty asbestos litigation based on an allegation that the judge’s sister was once employed by BASF’s predecessor, Engelhard Corp.