Version 1.0.0 · PWA Build
This app is provided for field use. For Play Store distribution, contact [email protected].
Last Updated: March 11, 2026
1. Acceptance of Terms
By downloading, installing, or using the A&W Pressure Washing Calculator application ("App"), you agree to be bound by these Terms of Service. If you do not agree, do not use the App.
2. License to Use
FiveO Development grants you a limited, non-exclusive, non-transferable, revocable license to use this App solely for professional field calculations related to pressure washing and soft wash operations. Redistribution, reverse engineering, or resale of this App or its content is prohibited without written authorization.
3. Intended Use
This App is a calculation aid intended to assist trained pressure washing professionals. Results are based on user-entered data and standard dilution formulas. The App is not a substitute for professional chemical handling training, industry certifications, or OSHA compliance requirements.
4. User Responsibilities
You are solely responsible for verifying all calculations before mixing or applying chemical solutions. You agree to use the App in compliance with all applicable federal, state, and local laws, including those governing chemical handling, environmental protection, and occupational safety.
5. Prohibited Uses
You may not use this App to generate or distribute false, misleading, or dangerous instructions. You may not use it in any manner that could cause harm to persons, property, or the environment.
6. Intellectual Property
All content, design, logic, and branding within this App are the property of FiveO Development and A&W Pressure Washing. The "A&W" marks and logo are trademarks of A&W Pressure Washing. Unauthorized use is prohibited.
7. Modifications
FiveO Development reserves the right to modify these Terms at any time. Continued use of the App after changes constitutes acceptance of the revised Terms.
8. Termination
We reserve the right to terminate your access to this App at any time for any reason, including violation of these Terms.
9. Governing Law
These Terms are governed by the laws of the State of the App operator's principal place of business. Any disputes shall be resolved in the courts of that jurisdiction.
10. Contact
Questions regarding these Terms may be directed to: [email protected]
| Product Name | Sodium Hypochlorite Solution (NaOCl) |
| CAS Number | 7681-52-9 |
| Common Concentrations | 7.5%, 10%, 12.5% available chlorine |
| Appearance | Clear to pale yellow liquid; characteristic chlorine odor |
| pH | 11–13 (strongly alkaline) |
| Boiling Point | ~102°C (decomposes) |
| Specific Gravity | 1.07–1.21 depending on concentration |
| Flash Point | Non-flammable |
| Vapor Pressure | ~17 mmHg at 20°C (water vapor) |
| Solubility | Miscible with water in all proportions |
| Odor Threshold | ~0.5 ppm (chlorine gas) |
| OSHA PEL (Cl₂) | 1 ppm ceiling |
| NIOSH IDLH (Cl₂) | 10 ppm |
| Shelf Life | 3–6 months at cool temp; degrades ~50% per year at 20°C |
| Storage | Cool, dark, dry. Keep away from heat, acids, ammonia, metals, organic materials. Use HDPE containers. |
| Disposal | Dilute with large amounts of water. Do not pour concentrated SH into storm drains. Follow local regulations. |
Vinegar, muriatic acid, pH-Down, citric acid → generates Cl₂ gas
Window cleaners, urine → generates chloramine gas
Violent decomposition, oxygen release, splash hazard
Forms chloroform and other toxic chlorinated compounds
Corrosion of iron, aluminum; avoid non-HDPE containers
Check SDS of every surfactant for chlorine compatibility
| Skin Contact | Remove contaminated clothing. Flush skin with large amounts of water for at least 15 minutes. Seek medical attention for burns or prolonged exposure. |
| Eye Contact | Immediately flush with water for at least 15–20 minutes, holding eyelids open. Seek emergency medical attention immediately. |
| Inhalation | Move to fresh air immediately. If breathing is difficult, administer oxygen. Seek medical attention. Do not re-enter contaminated area without respiratory protection. |
| Ingestion | Do NOT induce vomiting. Rinse mouth. Give water if conscious. Call Poison Control: 1-800-222-1222 or emergency services immediately. |
| Spill / Release | Evacuate area. Ventilate. Do not allow entry into drains or waterways. Contain with absorbent material. Neutralize with dilute sodium thiosulfate if available. |
Always obtain and read the complete SDS for every chemical product used on the job.