Heathrow Scientific disposable square weigh boats in flexible polystyrene for powder weighing, sample taring, and moisture analysis. Available in Standard and Antistatic formulations across three sizes (Small 46×46×8 mm, Medium 85×85×24 mm, Large 140×140×22 mm) and three colors. The antistatic treatment is embedded into the polystyrene during manufacturing and will not rub off or dissipate. Temperature range: -10 to +70°C. FDA food-grade. Pack of 500. Select Size, Color, and Type from the options above.
Standard vs. Antistatic Weigh Boats
| Feature | Standard Weighing Boats | Antistatic Weighing Boats |
|---|---|---|
| Material | Standard polystyrene (PS) | Antistatic PS — treatment embedded during manufacturing |
| Antistatic Treatment | None | Permanent — will not rub off, wash off, or dissipate |
| Best For | Routine powder weighing, liquids, granules, mixing, taring | Fine powders, APIs, metal powders, desiccants; sub-milligram analytical work |
| Colors Available | White, Blue, Black | White, Blue |
| Moisture Analyzer | Compatible to +70°C | Compatible to +70°C |
Size Selection Guide
| Size | Dimensions (L×W×H) | Approx. Capacity | Standard SKUs | Antistatic SKUs | Price (500/pk) |
|---|---|---|---|---|---|
| Small | 46×46×8 mm | ~7 mL | HS1420A (White), HS1421A (Blue), HS1423A (Black) | HS1420AA (White), 120222 (Blue) | $38–$41 |
| Medium | 85×85×24 mm | ~85 mL | HS1420B (White), HS1421B (Blue), HS1423B (Black) | HS1420BB (White), 120223 (Blue) | $52–$54 |
| Large | 140×140×22 mm | ~280 mL | HS1420C (White), HS1421C (Blue), HS1423C (Black) | HS1420CC (White), 120224 (Blue) | $104–$107 |
Features and Benefits
Smooth polystyrene surface for accurate pour-out — minimal sample loss when transferring powders, granules, or liquids. Rounded corners flex to form a controlled pour channel.
Wide, flat base prevents tipping — stable on analytical balance pans and moisture analyzer platforms. No rocking or tilting during weighing.
Biologically inert, FDA food-grade polystyrene — resistant to dilute acids, dilute bases, aqueous solutions, and alcohols. Suitable for pharmaceutical, food, and environmental lab use.
Microwave and halogen moisture analyzer compatible — rated to +70°C. Use directly in moisture determination without transfer.
Color-coded lab organization — three colors for project, compound, or operator separation. Black boats provide high contrast for light-colored powders. White standard for general use. Blue for secondary identification.
Antistatic treatment is permanent — embedded into the polystyrene during manufacturing. Will not rub off, wash off, or dissipate with handling or ambient humidity change.
Laboratory Applications for Square Weigh Boats
Analytical balance taring — place on balance pan, tare to zero, dispense sample directly. Flat base fits standard 80–120 mm analytical balance pans.
Pharmaceutical API weighing — antistatic weigh boats are recommended for active pharmaceutical ingredients, excipients, and fine drug powders where static charge causes adhesion and weighing error.
Powder dispensing and reagent prep — flexible corners form a pour channel for controlled transfer to volumetric flasks, reaction vessels, and weighing dishes.
Moisture analysis — PS is compatible with microwave and halogen moisture analyzers. Load sample directly into boat on moisture analyzer pan.
Chemistry and materials research — weigh catalysts, metal powders, polymer pellets, and reagents for synthesis. Antistatic formulation for static-sensitive materials.
Environmental and food QC — FDA food-grade PS. Suitable for food sample preparation and environmental sample taring.
Frequently Asked Questions
Does the antistatic treatment wear off?
No. The antistatic treatment is embedded into the polystyrene during manufacturing — it is not a surface coating and will not rub off, wash off, or dissipate with normal lab use or ambient humidity changes.
Can these disposable weigh boats be used with a microwave moisture analyzer?
Yes. Both Standard and Antistatic formulations are rated to +70°C and are compatible with microwave and halogen moisture analyzers for rapid moisture determination.
Are sterile weighing boats available?
Yes. See Heathrow Scientific Sterile Antistatic Square Weigh Boats (120880 Small, 120710 Medium) — individually sterile, 5-wrap packaging, 500/pk.
What is the difference between Black Standard and Black Antistatic?
Black weigh boats are available in Standard formulation only (HS1423A/B/C). For antistatic black, use White or Blue Antistatic (HS1420AA/BB/CC or 120222/223/224). All sizes and colors have identical dimensions within the same size group.
Academic and Institutional Pricing
LabSupplies.com offers tiered quantity pricing for academic and research institutions. As an authorized dealer, we ship directly from USA inventory.