Artificial Perspiration ISO 3160-2 – Not Stabilized, pH 4.7 BZ123
Product Code: BZ123
Manufacturer: Biochemazone
Available Pack Sizes: 100 mL, 200 mL, 500 mL, 1 L
Custom Bulk Quantities Available
Product Overview
Biochemazone Artificial Perspiration ISO 3160-2 – Not Stabilized BZ123 is a ready-to-use, sterile acidic artificial sweat at pH 4.7 for ISO 3160-2, the standard for gold alloy coverings on watch cases and accessories. It is used to determine the corrosion resistance – tarnishing, oxidation and surface penetration – of gold alloy coverings on watch cases and accessories, including bracelets permanently attached to the case.
The Not Stabilized version is supplied without preservative or stabilizer, so no additive is present that could influence the corrosion result. A stabilized version (BZ124) is available for users who open the bottle repeatedly over a long test programme. Prepared with ISO 3696 compliant high-purity water under Biochemazone’s ISO 9001 / GMP quality system, every batch is standardised for composition and pH. Other pH values from 2 to 9 are supplied on request at no extra cost.
BZ123 is used by watch and jewellery manufacturers, electroplaters, PVD coaters and testing laboratories to qualify gold-plated and gold-covered cases, bracelets, clasps and accessories, and more widely as an aggressive acidic sweat for the corrosion testing of decorative coatings. See also Artificial Perspiration ISO 3160-2 with Pyruvic Acid, Buffered BZ617 and Simulated Perspiration ISO 2812-1, pH 4.7 BZ408.
Key Features & Benefits
✅ ISO 3160-2 Artificial Sweat – For the corrosion-resistance test of gold alloy coverings on watch cases and accessories
✅ pH 4.7 – The pH specified by ISO 3160-2; other pH values from 2 to 9 on request
✅ Not Stabilized – Preservative-free – no preservative or stabilizer that could influence the corrosion 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
⌚ Watch Cases & Accessories
• Corrosion resistance of gold alloy coverings (ISO 3160-2)
• Cases, case backs, bezels and crowns
• Bracelets and clasps permanently attached to the case
💍 Jewellery & Decorative Platings
• Gold-plated and gold-filled jewellery
• PVD and electroplated decorative coatings
• Tarnish and discolouration studies
👓 Eyewear, Fasteners & Accessories
• Metal frames, hinges and temples
• Buckles, buttons, zips and trims
• Pens, lighters and other handled metal goods
🔬 R&D and Quality Control
• Coating thickness and process optimisation
• Supplier qualification and incoming inspection
• Comparison with EN 1811, ISO 12870 and AATCC sweat solutions
Typical Properties
- Appearance: Clear, colourless solution
- pH: 4.7 (customizable 2–9)
- Composition: Acidic artificial sweat prepared for ISO 3160-2 in purified water; no preservative or stabilizer
- Standard: ISO 3160-2 (watch cases and accessories – gold alloy coverings)
- 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 BZ124 – 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:
- pH adjustment anywhere from 2 to 9 at no extra cost
- Stabilized or not-stabilized (preservative-free) version
- EN 1811, ISO 12870, AATCC TM15 and ISO 105-E04 perspiration formulations
- Powder Version Kit, custom pack sizes and bulk carboys (5 L, 10 L, 20 L)
Frequently Asked Questions
What does ISO 3160-2 test?
ISO 3160-2 covers gold alloy coverings on watch cases and accessories. The artificial sweat is used in its corrosion-resistance test, which shows whether the covering tarnishes, oxidises or is penetrated when exposed to acidic sweat.
How does BZ123 differ from BZ124?
BZ123 is not stabilized and has a 6-month shelf life unopened. BZ124 is the same pH 4.7 solution with a preservative / stabilizer system for repeated opening.
Ordering Information
BZ123 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.
