Simulated Urine for Nonwoven and Diaper Testing (ISO 9073 / NWSP) BZ570
Product Code: BZ570
Manufacturer: Biochemazone
Available Pack Sizes: 100 mL, 200 mL, 500 mL, 1 L
Custom Bulk Quantities Available
Product Overview
Biochemazone Simulated Urine for Nonwoven and Diaper Testing BZ570 is the saline test liquid specified by the nonwoven test methods ISO 9073-8 (liquid strike-through time), ISO 9073-13 (repeated liquid strike-through time) and ISO 9073-14 (coverstock wetback), and by the matching EDANA/INDA procedures NWSP 070.3, 070.7, 070.8 and 080.10. These methods define simulated urine as a 9 g/L sodium chloride solution with a surface tension of 70 ± 2 mN/m.
Surface tension is the property that decides how quickly a liquid passes through a topsheet, so every batch of BZ570 is prepared with ISO 3696 compliant high-purity water and surfactant-free glassware, then checked for surface tension before release. The solution is unbuffered, with a typical pH of 6.0–7.0.
BZ570 is used for strike-through, wetback (rewet) and run-off testing of coverstock, acquisition layers and finished diapers, feminine-care pads and adult incontinence products. It is a simple, non-biological saline and contains no urea or proteins.
Key Features & Benefits
✅ Made for ISO 9073 and NWSP Methods – Simulated urine for strike-through, repeated strike-through and wetback tests
✅ 9 g/L Sodium Chloride – Composition defined by the test methods
✅ Surface Tension 70 ± 2 mN/m – Checked on every batch
✅ pH 6.0–7.0 – Unbuffered saline
✅ Surfactant-Free Preparation – Prevents false fast strike-through results
✅ ISO 3696 Grade Water – Prepared using high-purity laboratory water
✅ Ready-to-Use – No weighing or dilution required
✅ Made in Canada – Manufactured under ISO 9001 / GMP quality systems
Applications
🧪 Nonwoven Coverstock Testing
• Liquid strike-through time (ISO 9073-8, NWSP 070.3)
• Repeated strike-through time (ISO 9073-13, NWSP 070.7)
• Coverstock wetback (ISO 9073-14, NWSP 080.10)
• Run-off testing of topsheets
👶 Absorbent Hygiene Products
• Baby diapers and training pants
• Feminine-care pads and liners
• Adult incontinence pads and underpads
🔬 Quality Control & R&D
• Topsheet and acquisition-layer development
• Surfactant and finish durability studies
• Production and supplier quality control
Usage Areas
- Diaper, feminine-care and incontinence product manufacturers
- Nonwoven and coverstock producers
- Hygiene-product test laboratories
- Fibre-finish and surfactant suppliers
- Retailer and private-label quality laboratories
Typical Properties
- Appearance: Clear, colourless liquid
- pH: 6.0–7.0 (unbuffered)
- Composition: 9 g/L sodium chloride in ISO 3696 purified water
- Surface Tension: 70 ± 2 mN/m
- Biological Status: Non-biological; contains no urea or proteins
Storage & Stability
- Storage Temperature: 2–30 °C
- Shelf Life: 1 year for unopened bottles
- Shipping: Room temperature
- Keep the bottle closed and avoid contact with surfactants or detergents, which lower surface tension
Customization Options
- Coloured version for visual wetback studies
- pH or salt-concentration adjustment for in-house methods
- Custom pack sizes and bulk / OEM supply (5 L and 20 L on request)
Ordering Information
BZ570 is available in standard laboratory sizes or OEM/bulk supply formats.
📄 MSDS, Technical Datasheet, and Certificate of Analysis (CoA) available upon request
📧 Email: info@biochemazone.com
🌐 Website: www.biochemazone.com
⚠️ For research and product testing only. Not for human or animal use.
