Plan a trial for your application
Water treatment pH control
Use representative raw water to determine active acid demand at the same target pH.
Industrial pickling
Monitor surface quality and residue on the specified substrate under the established cleaning procedure.
Purchase specifications and incoming inspection
Review these properties when selecting and inspecting incoming material. Example figures refer to the cited grade or source. Confirm the offered specification, packaging and lead time in the quotation. NHMRC · Hydrochloric acid in water treatment ↗
| Property | Unit | Published or agreed specification | Test conditions and checks |
|---|---|---|---|
| HCl content | % by mass | Confirm against the offered grade and purchase specification | Agree on actual solution concentration and distinguish mass-based from volume-based pricing. |
| Iron | mg/kg | Confirm against the offered grade and purchase specification | Set the criterion using the colour change after cleaning and the downstream limit. |
| Density | g/mL | Confirm against the offered grade and purchase specification | Specify temperature. Use the actual lot data to convert orders placed by volume. |
When approving a sample, record the grade, methods, limits and specification revision. On receipt, match the packing lot number to the lot-specific COA and record the measured values and release decision.
From samples to commercial delivery
Packaging and receiving
Confirm corrosion-resistant container, connection, net weight and drum-return conditions for the actual concentration.
Storage and handling
The supplier and receiver should agree transport and unloading against the supplied SDS and the receiving installation.
Sample and order lead times
State the concentration or hydrate, initial net quantity, destination and unloading method. Confirm minimum order, pallet or truckload quantity, dispatch point and arrival date separately.
Questions from the plant
Which acid offer is better for a low-chloride discharge requirement?
Calculate the chloride introduced at equal effective acid demand. Review the downstream process and discharge conditions.
Can a normal density reading replace the acid assay?
Test HCl and impurities using the contractual method. Use density as a cross-check.
Report a delivery or batch issue
Include the order number, lot number from the package, label photos and inspection records for the affected lot. When retesting, check HCl content, Iron, Density.
Request documents for your application
TDS · Technical data sheet
For grade selection and sample approval, specify the grade and revision required.
SDS · Safety data sheet
Specify the country or region of use and the required language.
COA · Certificate of analysis
Request a sample COA during supplier review. For incoming inspection, provide the actual lot number.