Plan a trial for your application
High-calcium cooling water
Record calcium hardness, alkalinity, temperature and evaluation time when comparing deposit control.
Chelation in cleaning formulations
At actual formulation pH and target ion concentrations, assess initial clarity and precipitation after storage.
Purchase specifications and incoming inspection
Include the intended grade or current specification in the enquiry. Use the table to compare selection criteria and inspection conditions. The specification agreed by both parties defines the contractual limits. Shandong Taihe · PBTC product and evaluation criteria for water treatment ↗
| Property | Unit | Published or agreed specification | Test conditions and checks |
|---|---|---|---|
| Active component | Mass fraction | Agree for the offered PBTC grade. | State whether the value refers to the acid molecule or sodium salt. Record solution density separately. |
| Aqueous solution pH | Dimensionless | Specify the test concentration and temperature. | State whether the sample was used as supplied or specify its dilution. |
| Calcium tolerance | mg/L or agreed method | Set the acceptance criterion for the operating conditions. | Specify Ca or CaCO₃ as the reporting basis and record pH and observation time. |
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
Specify PBTC acid solution or neutralised product, net weight, concentration, tank material and unloading requirements.
Storage and handling
If appearance changes in transit, check temperature, seals and container cleanliness. Use a retained sample from the same lot to reassess compatibility.
Sample and order lead times
State treatment scale, trial quantity and acceptable packaging. Request minimum quantities, preparation times and arrival dates for lab samples, pilot lots and routine replenishment.
Questions from the plant
Do results from ordinary water apply at high calcium levels?
Include target hardness, temperature and cycles of concentration in the trial.
Can suppliers be ranked by their stated calcium tolerance?
Align hardness, pH, temperature and the time used to assess turbidity. Verify the ranking using site water.
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 active ingredient, calcium tolerance test conditions, Solution pH.
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.