Wow those package leaflets are impressive. We (in Germany) get those Chinese test on an emergency admission and all they have is a single table with specifity and sensitivity (no info on viral load at all). They are however cheap and they still work . The responsible agency is actually testing them recently and at least publish the results: https://www.eurosurveillance.org/content/10.2807/1560-7917.E... . Still they allow companies to sell obviously nonworking tests with nonreproducible test results.