Artificial Perspiration ISO 3160-2 – Stabilized, pH 4.7 BZ124
Product Code: BZ124
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 – Stabilized BZ124 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 Stabilized version contains a preservative / stabilizer system that keeps the solution free of microbial growth through repeated opening over a long test programme. If your protocol requires solution without preservative or stabilizer, order the not-stabilized version (BZ123) or the Powder Version Kit. 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.
BZ124 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
✅ Stabilized – Preservative / stabilizer system for repeated opening
✅ 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; stabilizer added
- Standard: ISO 3160-2 (watch cases and accessories – gold alloy coverings)
- Water Grade: ISO 3696 purified water
- Format: Sterile, ready-to-use liquid, stabilized
Storage, Shelf Life & Transportation
- Storage Temperature: 2–30 °C, protected from light
- Transportation: At room temperature
- Shelf Life: 1 year (unopened)
- Preservative-Free Version: See BZ123 (not stabilized) – shelf life 6 months 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: Handle aseptically; close tightly after use and do not return unused material to the container
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 BZ124 differ from BZ123?
BZ124 is stabilized: it contains a preservative / stabilizer system for repeated opening. BZ123 is the same pH 4.7 solution without preservative or stabilizer (6-month shelf life unopened).
Ordering Information
BZ124 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.
