Quotations are hereby invited for the following: Appointment of the service provider to purchase chemicals for XRF calibration for Council for Geoscience, 280 Pretoria road, Silverton. Specifications: - 1 x Nickel oxide (NiO); - 1 x Samarium oxide (Sm2O3); - 1 x Ytterbium oxide (Yb2O3); - 1 x Strontium oxide (SrO); - 1 x Thorium oxide (ThO); - 1 x Chrome ore. Please note that this quotation was published late. (投標 №102935204cn)