ก้านทดสอบคุณภาพน้ำ PONPE 048TS

PONPE 048TS Water total hardness Test strips กระดาษทดสอบความกระด้างของน้ำ ชุดทดสอบคุณภาพน้ำ

Instructions: 
1. Immerse the strip for 2 seconds and then remove the strip
2. Do Not shake ex cess water off, and then hold the strip horizontally for 15 seconde.
3. Compare against the color chart and read immediately within 30 seconds to get accurate results

Detection Levels