Information for All Vendors and Contractors Bidding Opportunities Architects, Engineers, Professional Services Small Works Vendors of Goods and Services District Standards Prequalification of Electrical Contractors Interlocal Agreements Home / Vendors and Contractors / District Standards / Major Equipment & Material Specifications / 5300 Chemicals (Refer to Material Catalog) / 5300 Chemicals (Refer to Material Catalog) No documents are available to download.