CLINSAM 02311 12 × 75 mm Polystyrene (PS) Test Tubes

1. Product Overview & Positioning

The CLINSAM 02311 12 x 75 mm PS test tube is a precision-molded, laboratory-grade polystyrene (PS) tube commonly used for sample handling, mixing, storage, and analytical workflows in clinical, research, educational, and industrial laboratories.

• Size: 12 mm outer diameter × 75 mm length
• Material: Premium polystyrene (PS)
• Format: Straight-walled, round bottom (or alternative bottom forms, if offered)
• The tube does not include a cap (caps available separately)
• Designed for general-purpose use in chemical, biological, or diagnostic workflows
• Non-sterile (unless otherwise sterilized)

 These test tubes offer excellent optical clarity, compatibility with standard racks and instruments, and cost-effective bulk packaging—making them ideal for medium- and high-throughput laboratories.

2. Key Features & Benefits

Here is a structured listing of the major features and why they matter to end users:

  2.1 Optical Clarity & Transparency

• Made from high-purity polystyrene resin, these tubes provide excellent clarity and low haze, enabling easy visual inspection of samples, colorimetric assays, precipitates, and suspensions.
• Light transmission is high, facilitating accurate reading in spectroscopic, photometric, or visual observation steps.

  2.2 Dimensional Accuracy & Uniform Wall Quality

• Molded with tight tolerances (on diameter, wall thickness, and length) to ensure compatibility with standard racks, centrifuge buckets, and processing equipment.
• Uniform wall thickness reduces stress concentrations and helps maintain mechanical integrity during handling.

  2.3 Mechanical Integrity & Resistance to Breakage

•  The PS formulation is optimized to resist cracking or crazing under normal lab handling.
• These tubes withstand typical laboratory stresses such as insertion, removal, and moderate vibration.

  2.4 Chemical Compatibility (Mild Conditions)

• Suitable for use with aqueous buffers, saline, weak acids and bases, and many biological reagents.
• Not recommended for strong solvents (e.g., chloroform, strong bases, strong oxidants) that degrade polystyrene.

  (Note: PS is known to be sensitive to certain organic solvents.)

• For more aggressive chemistries, a polypropylene (PP) or other compatible tube may be preferred.

  2.5 Standard Format & Rack Compatibility

• The 12 x 75 mm size is one of the most widely used lab tube formats, making these tubes compatible with most standard tube racks, centrifuge rotors, holders, and automated systems.
• This universality simplifies inventory and logistics for labs already using 12 x 75 mm tubes.

  2.6 Cost Efficiency & Bulk Packaging

• Supplied in bulk packages (e.g. 500 tubes per pack, 4 packs per case) to reduce per-unit cost and packaging overhead.
• Bulk format supports high-volume users and large labs, reducing packaging waste and administrative handling.

   2.7 Logistical Convenience

• The tubes are packed in protective trays or cartons to minimize breakage during transit.
• Clear labeling and lot coding support traceability, inventory control, and quality assurance.

   2.8 Option for Customization & OEM / Private Label

• Users may request custom printing (e.g. graduations, labels, barcodes) or branding.
• Compatible with a variety of cap types (plug, snap, screw, etc.) to fit different workflows.

3. Technical Specifications

Below is a suggested specification table for inclusion in catalogs or datasheets:

Notes & considerations:

• Because PS is more brittle than PP, users should avoid mechanical shocks, deep freezing, and extreme stresses.
• The specification above is intended as a representative set; actual tolerances, wall thickness, and performance may vary depending on your specific mold and resin grade.
• Before shipping to regulated labs, you may also include compliance with CE, RoHS, FDA, or other relevant certifications if applicable.

4. Packaging, Shipping & Logistics

An important part of your promotional / technical document is to clearly define how the tubes are packaged, shipped, and handled. This helps potential buyers assess logistics, shelf life, and breakage risk.

   4.1 Standard Packaging Configuration (typical / recommended)

• Inner pack/bag: 500 tubes per sealed polyethylene bag
• Packs per carton/case: 4 bags (i.e. total 2,000 tubes per case

Alternatively: 1,000 tubes per bag and 2 bags per case (depending on your packaging variant) or 250 tubes per bag x 8 bags per case for easier handling

• Carton / outer box dimensions: e.g. 46x40x30cm (for 5,000 pcs in carton)
• Gross weight per carton: ~11.7 kg for 5,000 pcs (for 12 × 75 mm PS)
• Carton / Case packing schematic: 4 inner bags → 1 carton
• Palletization: Appropriate stacking (e.g., 4, 8, or more cartons per pallet)
• Protective inserts / shock mitigation: Cardboard dividers, foam cushioning, or plastic trays to prevent tube breakage
• Labeling: Outer carton labeled with product name, part number (02311), quantity, lot number, gross/net weight, handling instructions (e.g. “Fragile — plastic tubes”), barcodes, export packaging marks, etc.

  4.2 Alternate / Customized Packaging Options (if offered)

• Smaller bag sizes (e.g. 250 tubes per bag) for smaller labs
• Tubs or trays instead of flexible bags
• Color-coded packaging for different variants
• Custom printed boxes or cartons with client branding
• Inclusion of caps in same box (if sold as a kit)
• Sterile blister packing or sterilization-ready packaging for sterile-grade
• ESD-safe or climate-controlled packaging (if shipping under extreme temperature/humidity conditions)

  4.3 Shipping & Handling Guidelines

• Use rigid cartons and avoid overstacking to prevent crushing
• Label cartons with “Fragile,” “This Side Up,” or “Handle with Care”
• Cushion corners and edges with foam or corrugated inserts
• Maintain relative humidity control during storage and transit to prevent static / deformation
• For long-range shipping (sea/air), ensure cartons are palletized and shrink-wrapped
• For international shipments, include proper commercial invoices, packing lists, certificates of origin, and compliance documents as needed

  4.4 Storage & Shelf Life

• Store at room temperature, ideally 10–30 °C, in a dry and dust-free environment
• Avoid prolonged exposure to UV light or direct sunlight
• Shelf life (as unused, sealed in packaging): typically 3–5 years, depending on resin stability
• Avoid extreme temperature fluctuations to minimize warpage or brittleness

5. Pricing & Commercial Offerings

Below is sample pricing information and strategies.

 5.1 Reference Market Pricing

• LabMedUSA lists a 12 x 75 mm PS test tube (SKU “cl-02311-1”) at about USD 27.50 for a given pack (spec sheet or volume not fully clarified) ([LabMedUSA][3])
• Thomas Scientific offers conical test tubes 12 x 75 mm (PS) in cases of 1,000 at USD 160.25 / case (~USD 0.160 per tube) ([Thomas Scientific][4])
• Perfector lists a 12 x 75 mm polystyrene test tube (box of 1,000) for about USD 54.00 ([perfector.com][5])
• Globe Scientific lists 1,000 PS 12 x 75 mm tubes at USD 61.90 (bag) ([Globe Scientific][6])
• In the Chinese supply chain, a 12 x 75 mm PS tube is packaged as 500 pcs per bag and 5,000 pcs per carton (46 × 40 × 30 cm, weight ~11.7 kg) ([cnwtc.com][2])

From these references, the landed cost of a single 12 × 75 mm PS test tube typically ranges from USD 0.05 to 0.20 per tube in bulk quantities, depending on shipping, markups, destination, custom duties, and packaging.

5.2 Proposed Pricing Strategy for CLINSAM 02311

5.3 Example Pricing Narrative

"CLINSAM 02311 is competitively priced at USD 0.10 per tube for standard orders of 5,000 pieces, with deeper discounts for larger volumes. For OEM clients ordering 50,000+ units per run, we can offer as low as USD 0.075 / tube. Full case orders (2,000 tubes per case) qualify for free domestic shipping within the continental U.S. international freight is calculated based on actual weight and destination."

5.4 Cost Drivers & Margin Considerations

When designing the pricing, consider the following cost components:

• Raw material (polystyrene resin, additives, colorants)
• Injection-molding / tooling amortization
• QC, inspection, and reject rates
• Packaging (bags, cartons, labeling, inserts)
• Labor, handling, and warehousing
• Domestic freight, export packaging, and export documentation
• Import duties, customs, tariffs (for international customers)
• Risk allowances (shrinkage, damage, returns)
• Profit margin & buffer for promotional discounts

6. Use Cases & Application Scenarios

• Routine sample handling (blood, urine, buffer aliquots)
• Diagnostic reagent preparation and reaction tubes
• Culture / microbiology preparatory steps (if PS is chemically compatible)
• Educational labs and demonstrations
• QC / control sample storage in analytical chemistry
• Buffer mixing, dilution series, small-volume reagent handling
• Basic centrifugation (within safe speed limits)
• Compatible with cap accessories (snap plugs, screw caps, closure systems)

Appendices

• Appendix A: Comparative Table between CLINSAM PS vs competitor tubes (resin, clarity, tolerances, speed ratings)
• Appendix B: Best Practices & Handling Guidelines (e.g. filling, capping, labeling, centrifugation warnings)
• Appendix C: Chemical Compatibility Table (listing reagents / solvents and whether PS is safe)
• Appendix D: Stress / Failure Mode Analysis (e.g., how to avoid cracking, freeze-thaw failure)
• Appendix E: Testimonials or Case Studies from labs or institutions using CLINSAM tubes
• Appendix F: Ordering & Delivery Terms (lead times, MOQ, custom options, payment terms)

REFERRENCE

[1]: https://bellcoglass.com/product/test-tube-12x75mm "TEST TUBE 12X75MM - Bellco Glass | Laboratory Glassware"

[2]: https://www.cnwtc.com/showroom/12x75mm-disposable-pp-ps-material-test-tube.html "12X75mm Disposable PP/PS Material Test Tube"

[3]: https://labmedusa.com/products/ps-test-tube-12x75 "12x75mm PS Test Tube – Clear Polystyrene, Lab-Grade – LabMedUSA"

[4]: https://www.thomassci.com/Laboratory-Supplies/Test-Tubes/_/Conical-Test-Tubes-12x75mm "Conical Test Tubes 12x75mm"

[5]: https://perfector.com/d_test_tubes/tube_12x75.html "12x75mm Test Tubes"

[6]: https://www.globescientific.com/12x75mm-plastic-tubes.html "12x75mm Plastic Tubes - Producers of Exceptional Quality Laboratory Supplies"