Standard Saline Solution for Contact Lens Testing (ISO 18369-3) BZ579
Product Code: BZ579
Manufacturer: Biochemazone
Available Pack Sizes: 100 mL, 200 mL, 500 mL, 1 L
Custom Bulk Quantities Available
Product Overview
Biochemazone Standard Saline Solution for Contact Lens Testing BZ579 is the buffered saline specified in ISO 18369-3 (Ophthalmic optics – Contact lenses – Part 3: Measurement methods), clause 4.9 “Saline solution for testing”. The standard uses this solution to equilibrate soft and rigid contact lenses before their dimensions, optical power and physical properties are measured, so that results from different laboratories can be compared.
The solution is a phosphate-buffered sodium chloride solution at a neutral pH of about 7.2–7.4, close to the tear film. Each batch is made to the clause 4.9 formulation with ISO 3696 compliant high-purity water, filtered, and checked for pH and osmolality under Biochemazone’s ISO 9001 / GMP quality system.
BZ579 is used by contact lens manufacturers, optical test laboratories and regulatory testing bodies for lens equilibration, dimensional and power measurement, water-content and refractive-index testing, and as the reference saline for lens-care product studies.
Key Features & Benefits
✅ Made for ISO 18369-3 – Saline solution for testing, clause 4.9
✅ pH About 7.2–7.4 – Phosphate-buffered, close to the tear film
✅ Controlled Osmolality – Checked on every batch for reproducible lens hydration
✅ Filtered, Particle-Free – Suitable for optical measurement cells
✅ Preservative-Free – No additives that could be taken up by hydrogel lenses
✅ ISO 3696 Grade Water – Prepared using high-purity laboratory water
✅ Ready-to-Use – No weighing or pH adjustment
✅ Made in Canada – Manufactured under ISO 9001 / GMP quality systems
Applications
👁️ Contact Lens Measurement
• Equilibration of soft and rigid lenses before measurement
• Diameter, sagitta, base curve and thickness measurement
• Back-vertex power and optical measurement in wet cells
🧪 Material Testing
• Water content and refractive index of hydrogel materials
• Dimensional stability and extraction studies
• Reference saline in lens-care product compatibility testing
🏭 Manufacturing & QC
• Batch release testing of contact lenses
• Incoming inspection and supplier qualification
• Regulatory and notified-body test programmes
Usage Areas
- Contact lens manufacturers
- Optical and ophthalmic test laboratories
- Lens-care solution developers
- Regulatory and certification laboratories
- University optometry and vision-science departments
Typical Properties
- Appearance: Clear, colourless liquid
- pH: about 7.2–7.4
- Composition: Sodium chloride with phosphate buffer, to ISO 18369-3 clause 4.9
- Preservative: None
- Water Grade: ISO 3696 purified water; filtered
- Biological Status: Non-biological
Storage & Stability
- Storage Temperature: 2–30 °C
- Shelf Life: 1 year for unopened bottles
- Shipping: Room temperature
- Optional: 0.05% preservative-added version available on request for prolonged shelf life and flexibility of work
- Preservative-free: once opened, use within 7 days or discard
Customization Options
- 0.05% preservative-added version (on request) for prolonged shelf life
- Sterile version in single-use bottles
- pH or osmolality adjustment for in-house methods
- Custom pack sizes and bulk / OEM supply (5 L on request)
Ordering Information
BZ579 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 laboratory testing only. Not for use in the eye, and not for rinsing or storing lenses that will be worn.
