uji778102019 SNI 6989.77-2011-Pengujian Sianide. SNI 6989.77:2011. Standar Nasional Indonesia. Air dan air limbah – Bagian 77 : Cara uji sianida (CN-)uji77.7. Follow. This account is private. Already follow uji77.7? Switch to the app or log in to see their photos and videos. Switch to the App.