Artificial Perspiration ISO 12870 (Spectacle Frames) – Custom pH, Not Stabilized BZ149
Product Code: BZ149
Manufacturer: Biochemazone
Available Pack Sizes: 100 mL, 200 mL, 500 mL, 1 L
Custom Bulk Quantities Available
Product Overview
Biochemazone Artificial Perspiration, ISO 12870 Sweat – Custom pH, Not Stabilized BZ149 is a ready-to-use, sterile artificial perspiration for spectacle frames. It is used for the resistance-to-perspiration test of ISO 12870, Ophthalmic optics – Spectacle frames, which applies to unglazed spectacle frames designed for use with all prescription lenses. The standard also applies to frames made from natural organic materials, but not to custom-made spectacle frames or to products designed specifically to provide personal eye protection. The test solution is lactic acid and sodium chloride in purified water. ISO 12870 sets no pH for it; as prepared it is strongly acidic, about pH 2. In the test the frame is held above the solution in a closed container at 55 °C, for 8 hours and then a further 16 hours, and is inspected for corrosion, discolouration and coating damage.
The Custom pH version is supplied as prepared to the standard (about pH 2) or made to the pH you specify, anywhere from 2 to 9, at no extra cost – state it in the order notes. It is supplied not stabilized and preservative-free, with a 6-month shelf life unopened. The stabilized version is BZ150.
The solution is prepared with ISO 3696 compliant high-purity water under Biochemazone’s ISO 9001 / GMP quality system. BZ149 is used by frame manufacturers, coating and plating suppliers and optical test laboratories to check that frame fronts, temples, nose pads and their coatings do not corrode, discolour or peel in contact with sweat.
Key Features & Benefits
✅ ISO 12870 Spectacle-Frame Sweat – For the resistance-to-perspiration test of spectacle frames
✅ Strongly Acidic, about pH 2 – As prepared to the standard; any pH from 2 to 9 on request at no extra cost
✅ Not Stabilized – Preservative-free – no preservative or stabilizer that could affect the result
✅ Sterile & Ready to Use – No weighing, mixing or pH adjustment before the test
✅ ISO 3696 Grade Water – Prepared using high-purity laboratory water standards
✅ Reproducible & Standardized – Consistent batch-to-batch composition for routine QC and inter-laboratory comparison
✅ Made in Canada – Manufactured under ISO 9001 / GMP quality systems
Applications
👓 Spectacle Frames
• Resistance to perspiration of unglazed frames (ISO 12870)
• Metal, acetate and injection-moulded frames
• Frames made from natural organic materials
🎨 Coatings & Platings
• Lacquers, PVD and electroplated finishes on frames
• Colour change, peeling and corrosion after sweat exposure
• Nose pads, temple tips and hinges
🕶️ Sunglasses & Wearables
• Sunglass and sports eyewear frames
• Smart glasses and head-worn devices
• Skin-contact components of headsets
🔬 Compliance & R&D Laboratories
• Frame qualification before market release
• Supplier and incoming inspection
• Material and coating development
Typical Properties
- Appearance: Clear, colourless solution
- pH: About 2 as prepared (ISO 12870 sets no pH); made to order from 2 to 9
- Composition: Lactic acid and sodium chloride in purified water, per the ISO 12870 test solution; no preservative or stabilizer
- Standard: ISO 12870 (Ophthalmic optics – Spectacle frames)
- Water Grade: ISO 3696 purified water
- Format: Sterile, ready-to-use liquid, not stabilized
Storage, Shelf Life & Transportation
- Storage Temperature: 2–30 °C, protected from light
- Transportation: At room temperature
- Shelf Life: 6 months (unopened)
- Preservative-Free: This not-stabilized product contains no preservative
- Stabilized Version: See BZ150 – shelf life 1 year unopened at 2–30 °C
- Powder Version Kit: Available on request – 2-year shelf life, easy to reconstitute and suitable for culture-related applications; recommended when a preservative is not required
- After Opening: Preservative-free – handle aseptically, close tightly after use, do not return unused material to the container and use promptly once opened
Customization Options
Customization available on request:
- Any pH from 2 to 9 at no extra cost
- Eccrine-type profile with amino acids, minerals and metabolites
- Stabilized or not-stabilized (preservative-free) version
- EN 1811, ISO 3160-2 and ANSI/BHMA A156.18 perspiration formulations
- Powder Version Kit, custom pack sizes and bulk carboys (5 L, 10 L, 20 L)
Frequently Asked Questions
Which frames does the test cover?
ISO 12870 applies to unglazed spectacle frames designed for use with all prescription lenses, including frames made from natural organic materials. It does not apply to custom-made frames or to products designed specifically for personal eye protection.
What is the pH of the solution?
ISO 12870 sets no pH for the test solution. Prepared to the standard from lactic acid and sodium chloride it is strongly acidic, about pH 2. If your method needs a different pH, write it (2 to 9) in the order notes at checkout or email info@biochemazone.com; there is no extra cost.
Ordering Information
BZ149 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, education, and in vitro testing only. Not for human or animal use.
