People credited with this unit standard are able to: define and use terms and vocabulary applicable to screen printing; describe use and application of halftones; demonstrate knowledge of the principles of design and layout; describe the machinery and equipment used in screen printing; use reference material to ensure procedures are followed and required standards are met; identify problems associated with static electricity and relative humidity and explain potential solutions; identify and describe the requirements of screen printing processes; explain colour theory and use colour terms; demonstrate knowledge of inks or dyes, and additives, and ink drying systems and equipment.