If you think you have accidentally disturbed asbestos, please be cautious and treat it as if it is asbestos (until confirmed by a licensed asbestos contractor).
Please contact a reputable asbestos consultant using:
The Faculty of Asbestos Management Australia and New Zealand (FAMANZ): www.famanz.org
Licensed Asbestos Removalists: https://services.worksafe.govt.nz/asbestos-removalist-public-register/
Licensed Asbestos Assessors: https://services.worksafe.govt.nz/asbestos-assessor-public-register/