์ ํ ํํฐ
Phosphate Test, photometric, 1.0-100.0 mg/L (PO4-P), 3-307 mg/L (PO43-), 2-229 mg/L (P2O5), Spectroquantยฎ
Phosphate Test, colorimetric, 0.2-3.0 mg/L (PO4-P), for use with MQUANTยฎ