A Detailed Assessment is a room-by-room or area-by-area type of testing that provides individual analysis per sample. This type of testing is required when a “Screening Assessment” has exceeded 1.5ug – the maximum acceptable level of methamphetamine as set out by the New Zealand Standard for Testing & Decontamination of methamphetamine contaminated properties (NZS 8510:2017). Each sample is harvested using the NIOSH 9111 method of a methanol soaked gauze sampling an area of 100cm2. Samples are taken per 10m2 of each room/area to give a complete overview of the property. This analysis is used by decontamination companies to create a scope of work to bring the property back to habitable levels.
– Samples taken in every 10m2 in accordance with NZS8510:2017
– The samples are analysed individually so you know exactly where within a room the contamination is located. This assists in the efficiency of the decontamination process
– A greater number of samples are required to gauge the spread of the contamination, increasing the laboratory cost.