40um Standard Polystyrene Microspheres SPS40UM-10 5%

40um Standard Polystyrene Microspheres SPS40UM-10

SHBC SPS40UM-10 Standard Polystyrene Microspheres are spherical polystyrene particles with a nominal diameter of 40 μm and a solid content of 5%.

They are suitable for particle analysis, microscopy, filtration testing, particle counting, microfluidic research and sedimentation studies.

Product Overview

SPS40UM-10 provides a controlled 40 micron particle platform for laboratory research, analytical method development and industrial testing.

The microspheres offer convenient optical visibility and regular spherical morphology. The concentrated 5% suspension supports flexible dilution, repeated testing and bulk projects.

Technical Specifications

Actual mean diameter and particle-size distribution are batch-specific. Refer to the applicable Certificate of Analysis.

Key Advantages

• Nominal particle diameter of 40 μm

• Regular spherical morphology

• Concentrated 5% solids

• Easy optical observation

• Convenient dilution and sampling

• Suitable for filtration studies

• Suitable for particle-counting research

• Flexible packaging options

• Bulk production available

• Customized specifications supported

Applications of 40um Polystyrene Microspheres

Particle Size Analysis

SPS40UM-10 can be evaluated as a model particle for particle-size measurement, comparative testing and analytical method development.

Particle Counter Evaluation

The controlled 40 μm diameter supports particle-detection studies, counting-method development and instrument-response testing.

Optical Microscopy

The particles are readily visible under suitable optical microscopy conditions, supporting particle counting, tracking and morphology observation.

Filtration and Membrane Testing

SPS40UM-10 is suitable for filter-retention, membrane-efficiency, particle-recovery and challenge-testing studies.

Microfluidic and Flow Research

The microspheres can be used for channel evaluation, flow visualization, particle transport, pump testing and separation research.

Sedimentation Studies

The controlled particle size supports settling-behavior, suspension-stability, aggregation and particle-recovery studies.

Microplastic Research

SPS40UM-10 may be evaluated as a defined polystyrene particle model for sampling, recovery, transport and analytical-method development.

Surface Interaction Research

The standard polystyrene surface can support physical adsorption, particle–molecule interaction and surface-treatment studies.

Why Choose 40um Polystyrene Microspheres?

The 40 μm diameter provides convenient microscopic observation and controlled particle geometry.

Typical research areas include:

• Particle characterization

• Particle counting

• Optical imaging

• Filter evaluation

• Flow-system testing

• Microfluidic transport

• Sedimentation analysis

• Microplastic method development

Benefits of 5% Solid Content

SPS40UM-10 is supplied at 5% solids for flexible laboratory and production use.

The concentrated suspension can be diluted to different working concentrations and supports repeated experiments, pilot projects and larger-volume requirements.

The liquid format also reduces weighing steps compared with dry microspheres.

Standard Polystyrene Surface

SPS40UM-10 has a standard plain polystyrene surface without intentionally added fluorescent dyes or functional groups.

It is suitable for general particle and surface-interaction research.

SHBC also supplies carboxyl, amino, fluorescent and colored polystyrene microspheres for specialized applications.

Standard Microspheres or Certified Size Standards?

SPS40UM-10 is positioned as a standard research-grade polystyrene microsphere.

It should only be described as certified, calibrated or traceable when corresponding certification documents are supplied for the specific product and batch.

Customers requiring certified particle-size standards should confirm:

• Actual mean particle diameter

• Particle-size tolerance

• Standard deviation

• Coefficient of variation

• Measurement method

• Traceability documentation

Quality and Batch Documentation

Available product documentation may include:

• Product code

• Batch number

• Actual mean particle diameter

• Particle-size distribution

• Solid content

• Product appearance

• Certificate of Analysis

• Safety Data Sheet

Why Choose SHBC?

Shanghai SanYu Biotechnology Co., Ltd. supplies standard and functional microspheres for research, analytical development and industrial applications.

SHBC advantages include:

• Multiple particle sizes

• Standard and functional surfaces

• Laboratory sample supply

• Pilot-scale manufacturing

• Bulk production capability

• Customized solid content

• Flexible packaging

• OEM and private-label services

• Technical product-selection support

Customized Microsphere Supply

Customization options include:

• Particle diameter

• Solid content

• Dispersion medium

• Surface functionalization

• Fluorescent labeling

• Particle color

• Packaging volume

• OEM labeling

• Bulk production

Storage and Handling

Store SPS40UM-10 according to the product label, COA and SDS.

Particles of this size may settle during storage. Gently mix the suspension until uniform before sampling or dilution.

Avoid freezing, drying, excessive heat and contamination. Do not sample only from the upper layer of a settled suspension.

Frequently Asked Questions

What is SPS40UM-10?

SPS40UM-10 is a standard polystyrene microsphere suspension with a nominal diameter of 40 μm and a solid content of 5%.

Is 40um equal to 40 microns?

Yes. A diameter of 40 μm, 40um or 40 microns is equal to 40,000 nm.

What are 40um polystyrene microspheres used for?

Typical applications include particle analysis, microscopy, particle counting, filtration testing, flow research, sedimentation and microplastic studies.

Can the particles be observed with an optical microscope?

Yes. The 40 μm particle diameter provides convenient visibility under suitable optical microscopy conditions.

Do 40um microspheres settle during storage?

Yes. Particles of this size may gradually settle. Thoroughly redisperse the suspension before sampling.

Can SPS40UM-10 be diluted?

Yes. The 5% suspension can be diluted to the required working concentration using a compatible medium.

Can it be used for filter testing?

SPS40UM-10 may be evaluated for filter-retention, membrane-efficiency and particle-recovery studies.

Is SPS40UM-10 a certified calibration standard?

It should only be described as certified or traceable when corresponding certification documents are supplied for the specific batch.

Are functionalized versions available?

Yes. SHBC can supply carboxyl, amino, fluorescent, colored and other customized polystyrene microspheres.

Are bulk quantities available?

Yes. SHBC supports samples, customized packaging, pilot projects and bulk production.

Request SPS40UM-10 Samples and Quotations

Contact Shanghai SanYu Biotechnology Co., Ltd. for SPS40UM-10 samples, technical specifications, customized packaging and bulk quotations.

SHBC supplies standard polystyrene microspheres for research laboratories, instrument developers, filtration companies, environmental researchers and industrial projects.

For Research Use Only.