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: Verification of heavy metal limits (e.g., Pb ≤ 5 ppm) and negative results for pathogens like E. coli or Salmonella .
: ≥ 40% (using validated methods like HPAEC). buy ahcc in bulk
: To ensure efficacy, buyers should demand a Certificate of Analysis (CoA) for every lot. Key benchmarks for quality include: : Verification of heavy metal limits (e