Please note: This is a Sole Source Notification. UNSPSC 41 Laboratory and Measuring and Observing and Testing Equipment: This segment includes the machines, equipment and tools used in laboratories, as well as measuring, observing and testing equipment UNSPSC 1235 Compounds and mixtures: A compound contains atoms of different elements chemically combined together in a fixed ratio. A mixture is a combination of two or more substances where there is no chemical combination or reaction. UNSPSC 432315 Business function specific software: Business transaction and personal business software covers business transactions,auditing ,forecasting and accounting . UNSPSC 73171605 Laboratory equipment manufacture services UNSPSC 81101706 Laboratory equipment maintenance: Service related to maintenance of electrical laboratory equipment.