Yes, we are in the process of implementing ISO17025 and have almost completed creating our quality management system. I am struggling with method validation/verification for my analyses. One is semi-quantitative while primarily identification (NIOSH 9002) and I am unsure how to verify the method since I can’t order standards and I have previous PT samples I can use but they don’t cover the entire scope and since the method is partially identification I can’t re-use them as blinds. The other method is random by nature so again I can’t order standards. I just want to ensure that the verification that I perform is robust enough.