Quotations are hereby invited for the following: Appointment of a service provider to assist with annual calibration of E2 mass standards. Specifications: - Mass Standards sizes: 0.001-20,000g; Calibration to be performed by SANAS Accredited Laboratory for E2 x 31; - SANAS Calibration Certificates Required x 1. Required at: 1 Dr Lategaan Drive, SABS Campus, Groenkloof, Tshwane, 0181. (Tender №106121817)