The operations manual may also be referredto for alternate calibration to a specific compound. 7.0 PROCEDURES7.1 Preparation Check out and ensure the proper operation of the PID,as appropriate, using the equipment checklist providedin Sections 5.0 and 6.0 and the steps listed below. 7.2 Start-Up Procedures 1.
Explanation for the origins of the Aborigines in Australia The origins of the Australian Aborigines has never been a mystery to Africans.. As far as Africans are concerned, the Australian Aborigines, Trobian Islanders and Melasesians are all part of the protohistoric African Diaspora.
The Australian aborigines are believed to have come from Asia, crossing via a series of land bridges that existed thousands of years ago. They were the original inhabitants before the Europeans arrived.NA testing has  indicated that the Australian Aborigines originally came from the  Indian subcontinent. They are believed â¦ to have come to Australia  via the land bridges that existed thousands of years ago but which  are now submerged. On the Wallaby.