Alkaline Artificial Sweat pH 8.0 – ISO 11641 Human Perspiration Solution BZ544
Product Code: BZ544
Manufacturer: Biochemazone
Available Pack Sizes: 100 mL, 200 mL, 500 mL, 1 L
Custom Bulk Quantities Available
Product Overview
Biochemazone Alkaline Artificial Sweat (pH 8.0) – ISO 11641 Human Perspiration Solution BZ544 is a ready-to-use synthetic perspiration that reproduces human sweat under alkaline conditions. It is developed in line with ISO 11641, Leather – Tests for colour fastness – Colour fastness to perspiration, whose test solution is sodium chloride, tris(hydroxymethyl)aminomethane, urea and nitrilotriacetic acid adjusted to pH 8.0. The alkaline pH represents perspiration that has aged on the skin, the more severe condition for dyes and finishes.
BZ544 is used for dye-fastness and colour-stability testing of leather and textiles, for sweat-resistance and degradation studies of fabrics, for corrosion and oxidation studies of metals and coatings, for the calibration and exposure testing of skin-contact sensors and wearable devices, and in dermatological research on the interaction of alkaline sweat with the skin and with topical formulations.
Unopened, it has a 1-year shelf life at 2–30 °C and is shipped at room temperature; a preservative-free version and a dried Powder Version Kit are available on request. It is enzyme-free; viscosity, ionic strength and pH can be adjusted on request. For the ISO 11641 solution in other versions see BZ144 and BZ143; for the acid counterpart see Human Sweat pH 5.5 Acid Solution BZ545.
Key Features & Benefits
✅ Alkaline pH 8.0 – Simulates perspiration under alkaline conditions
✅ ISO 11641 Reference – Developed in line with the leather colour-fastness-to-perspiration test
✅ Sweat-Like Ionic Composition – Reproduces the electrolyte balance of human perspiration
✅ 1-Year Shelf Life – Unopened at 2–30 °C; shipped at room temperature
✅ Ready to Use – No weighing, mixing or pH adjustment before the test
✅ 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
🧵 Leather, Textile & Fabric Testing
• Dye fastness and colour stability
• Sweat resistance of leather and fabrics
• Degradation and durability studies
⌚ Wearable Device Testing
• Skin-contact sensor calibration
• Sweat exposure performance testing
• Skin-contact material evaluation
🧪 Dermatological Research
• Skin interaction with alkaline sweat
• Exposure modelling
• Stability of topical formulations
🔩 Material Testing
• Corrosion and oxidation studies
• Metal and coating resistance
• Polymer and surface degradation
Typical Properties
- Appearance: Clear, colourless solution
- pH: 8.0 (alkaline perspiration condition)
- Composition: Sodium chloride, tris(hydroxymethyl)aminomethane, urea and nitrilotriacetic acid in purified water, adjusted to pH 8.0, per the ISO 11641 perspiration solution
- Enzymes: Enzyme-free (optional on request)
- Viscosity: Low (customizable)
- Format: Ready-to-use liquid
Storage, Shelf Life & Transportation
- Storage Temperature: 2–30 °C, protected from light
- Transportation: At room temperature
- Shelf Life: 1 year (unopened)
- Preservative-Free Version: Available on request
- Powder Version Kit: Available on request – 2-year shelf life, easy to reconstitute and suitable for culture-related applications
- After Opening: Handle aseptically, close tightly after use, do not return unused material to the container
Customization Options
Customization available on request:
- pH fine tuning
- Ionic strength and viscosity adjustment
- Enzyme or organic additive inclusion
- Powder Version Kit, custom pack sizes and bulk carboys (5 L, 10 L, 20 L)
Frequently Asked Questions
Why is the solution alkaline?
Perspiration turns alkaline as it ages on the skin, and alkaline sweat is harder on dyes and finishes than fresh acid sweat. ISO 11641 therefore tests leather with a solution at pH 8.0.
How does BZ544 relate to BZ143 and BZ144?
All three are alkaline perspiration solutions at pH 8.0 in line with ISO 11641. BZ144 and BZ143 are the two versions listed under the ISO 11641 Artificial Perspiration name; BZ544 is the ready-to-use solution described on this page. Order the code your specification or earlier orders cite.
Ordering Information
BZ544 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.
