Phosphorus (P) from NH4H2PO4. ICP Standard at 10,000 µg/mL in 0.05% HNO3. 250 mL. 18 months expiry date. Traceable to NIST SRM 3138. ISO 9001:2015 certified, ISO/IEC 17025:2017 and ISO 17034:20166 accredited.
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