Test Tube Rack Can be made of different materials
{"Image DocumentName": "Test Tube Rack Can be made of different materials", "Image ImageDescription": "Can have different shapes. Holds test tubes when: A reaction is occurring. Observations are made. When they are not needed.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}