Product selection depends on the cooling method, operating conditions, and scale composition.

General guidelines are as follows:

• Aluminum equipment => ST-302R

• Water related equipment =>ST-407 / MSR-I00 / ST-205

• Oil related equipment
- Common equipment => ST-I00D
- Crude oil tank => ST-I0I / ST-102

Because scale composition varies depending on the source of water quality and treatment chemicals, final product selection must be confirmed through preliminary testing.

The characteristics of scale vary depending on:

• Mineral content of the water
  
• Water treatment chemicals in use
  
• System conditions (operating temperature, pressure and composition of fluid)
  

As a result, a beaker solubility test is required to verify whether the scale can be effectively dissolved or dispersed before field application.

Typical correlations include:

• Calcium-based scale → ST-407
  
• Silica-based scale → MSR-100 or ST-205
  
• Iron oxide formed at high temperature → ST-205
  
• Iron oxide formed at low temperature → ST-302R
  

A scale sample is collected directly from the equipment and tested using a controlled beaker test.

Scale removal is considered feasible if the scale dissolves or disperses under appropriate chemical concentration, temperature, and exposure time.

If the scale does not respond under any tested condition, chemical cleaning may not be suitable for that system.

Note: This procedure is intended for authorized partners.

Prepared Scale Sniper solutions are placed in a beaker and heated to a controlled temperature. A scale sample (approximately 20 g) is added, and dissolution or dispersion is observed over time.

Typical test conditions:

• ST-407, ST-302R, MSR-100, ST-205 → 40–50 °C
  
• ST-100D → 60–70 °C
  

Glass beakers are used for most products, while plastic beakers are required for silica-focused products, which may etch glass.

Observed dissolution times vary depending on scale composition:

• Calcium scale → ~1 hour (ST-407)
  
• Silica scale → ~12 hours (MSR-100 or ST-205)
  
• Low-temperature iron oxide → ~6 hours (ST-302R)
  
• High-temperature iron oxide → 12–24 hours (ST-205)
  
• Stainless steel rust → ~12 hours (MSR-100)
  
• Aluminum oxide film → ~6 hours (ST-302R)
  

Actual results may vary depending on scale density and formation conditions.

Material compatibility depends on:

• Equipment material
  
• Chemical type
  
• Application temperature
  

Detailed material compatibility and corrosion-rate data are available in the product catalog.

Third-party ASTM-based test reports (KTR) can be provided upon request.

For materials not listed, prior consultation is required.ditional textual information about this expandable block.

• Facilities without wastewater treatment systems must outsource disposal to licensed waste-treatment contractors.
  
• Facilities with wastewater treatment systems may perform a simple jar test (approximately one day) to determine whether on-site treatment is possible.
  

In general:

• ST-407, ST-302R, ST-100D → Often treatable on-site
  
• MSR-100, ST-205 → Typically require off-site treatment
  

Outsourced disposal costs are often significantly higher; on-site treatment is recommended whenever feasible.

• Cooling towers and AFC units
  
  The solution is sprayed onto the system. Runoff is collected and recirculated repeatedly.
  
• Piping systems
  
  The solution is circulated using a pump for 6–24 hours, alternating between circulation and static soaking.
  
• Shell-and-tube heat exchangers
  
  The solution is circulated for 6–24 hours. After circulation, tubes may be rinsed with high-pressure water (approximately 150 bar) if necessary.

• Cooling towers / AFC units → 5–10 days (depending on system size)
  
• Piping systems → 3–5 days (depending on pipe length)
  
• Shell-and-tube heat exchangers → 3–10 days (depending on exchanger size)
  

Typical scale removal efficiency is approximately 90%.

In some systems, 95% or higher removal can be achieved depending on scale type and equipment condition.