Nalco 77225 Safety Data Sheet -

This section defines the Occupational Exposure Limits (OELs) .

| Component | OSHA PEL | ACGIH TLV | Nalco Internal Limit | |-----------|----------|-----------|----------------------| | Sodium hydroxide | 2 mg/m³ (ceiling) | 2 mg/m³ (ceiling) | 2 mg/m³ | | Phosphonate | None established | None | 10 mg/m³ (total dust) | nalco 77225 safety data sheet

Engineering controls are the first line of defense (e.g., local exhaust ventilation). Key insight : The absence of a specific

PPE Requirements:

Key insight: The absence of a specific OEL doesn’t mean “safe”—it means “unregulated, so minimize all contact.” so minimize all contact.”