Chemical dosing: energy sources and direct controls

Dosing water treatment chemicals involves corrosive or reactive substances under pressure in occupied plant spaces.

High-energy check

Treat dosing chemicals as high energy for skin and eye contact. Mixing incompatible chemicals adds violent reaction exposure.

This task's main energy sources are not calculated by this tool. Use the trigger checks below and competent-person verification.

Trigger checks

Chemical
Harmful, reactive, flammable, corrosive or toxic substances.
Pressure
Compressed gas, liquid, hydraulic, pneumatic or vacuum energy.

Direct controls to verify

Ticks stay on this screen only. Nothing is saved or sent.

Chemical identities and incompatibilities are confirmed before work.
PPE for the specific chemical is worn, not generic PPE.
Eyewash and spill response are available at the work location.
Lines are proven empty and flushed before connections are broken.
Incompatible chemicals are physically segregated.
Stop if an unexpected reaction, fume or leak occurs.

For your SPA or pre-start

State the chemicals in use, the incompatibilities, the PPE and eyewash provision and how lines are proven empty before breaking connections.

Limitations: This tool supports planning and verification only. It does not replace competent risk assessment, legal duties, employer procedures, client requirements or competent supervision.