Standards NZ have released a draft Standard for ‘Testing and decontamination of methamphetamine-contaminated properties’. A copy of the draft Standard is available on the Standards NZ website (see link at the end of this article) and public submissions can be made on its contents until 20 February, 2017.
The draft Standard has been prepared by a committee made up of technical experts, along with industry and government representatives.
The draft Standard contains recommendations for maximum residue levels of methamphetamine in properties, and for the first time these recommendations include situations where the drug has been used but not manufactured. To this point, the only guidelines have been for maximum residue levels in properties used for manufacture of the drug. The recommended maximum residue levels in the draft Standard where there is no evidence of manufacture in the property are:
- 1.5 µg/100cm2 for houses where the drug has only been used – carpeted
- 2.0 µg/100cm2 for houses where the drug has only been used - uncarpeted
These are 3-4 times higher than the level of 0.5 µg/100cm2 which has been used to this point, and are based on a report commissioned by the Ministry of Health to investigate the risk to human health from exposure to methamphetamine residues.
The draft Standard also contains a wide range of other material, including proposed requirements for sampling, testing, and interpretation of results. It proposes some new requirements for training and experience for those involved in these things.
A copy of the draft Standard can be accessed vis this link.