What are clean containers?

Clean containers are containers that are produced in a strictly particle-controlled environment using carefully selected low-elution-grade material.
They are used to safely transport and store liquids that require strict quality control, such as high-purity chemicals used to manufacture semiconductors, pharmaceuticals, cosmetics, and fragrances. Depending on their size, they are also called clean bottles, clean polycons, and clean drums.

introduction SEKISUI SEIKEI’s clean container solutions

Control of the cleanliness inside the container
(particle control)

  • 10-20L Polycon

    ≥0.3μm 30 or fewer/ml

  • 200L Polydrum

    ≥0.5μm 10 or fewer/ml

Clean containers vs. general containers (internal comparison)

Particle measurement value

Reference data

Metal impurities value

Measured by ICP-MS after filling 20L of ultrapure water and storing it for 1 day (24h) at 40°C

Detection limit: 5ppt; unit: ppt

Reference data

Achieve high quality with particle control and low elution material

products Lineup of clean container products

We offer clean containers with a high level of cleanliness in a wide range of sizes, such as 100cc-1L bottles, 10L-20L clean polycons, and 200L drums.

Capacity 100cc 250cc 500cc 1L 10L 13L
Shape
Capacity 01AL-F 02AL-F 05AL-F 1AL-F 10AL 10UN 13SL
Color
Capacity 20L 200L
Shape
Capacity 20BL2 20SL5 22AH SPD200-2
Color

features Features of clean containers

It is easy to scale up from laboratories to mass production.
Since the same grade of raw material is used in every size (grade is added), it is not necessary to evaluate the performance of the container at the time of scale-up.
Superior Clean Performance to Maintain Content Fluid Quality
To limit the elution of components into the contents as much as possible.
Complies with UN standards required for transporting hazardous materials
All volumes comply with UN standards (UN Recommendations on the Transport of Dangerous Goods)
Same raw material for the interior layer Easy scale-up 100cc-1L

For Sekisui clean containers, we cover every step from
research and development and sampling to mass production

Stable supply with the use of multiple production sites

features Other features of clean containers

Low residue type

Efficiently discharges the contents leaving as little residue as possible.

  • Structure

    Base shape that enables efficient discharge of contents

  • Comparison of amount of residue

    Checking method: Use a connector and a pump to suck out water until it stops and measure the amount of liquid that remains

    • Regular product

    • Residue-reduction product

    Problem: Residual liquid accumulates diagonally from the liquid emptying plug and cannot be sucked out.

Leads to efficient use of liquid chemicals and reduction in wasted residual liquid

faq FAQ

Are the containers cleaned before shipment?
SEKISUI SEIKEI does not clean the containers, but they are molded in a clean environment and delivered with the cap shut.
Can the containers be used without cleaning them first?
While this depends on the requirement level of the customer, some customers have not needed to clean them as they are using clean containers.
What type of blown air is used for molding?
The air used is clean air that has passed through a HEPA filter.
Are the caps and plugs packaged separately or are the containers delivered with the caps and plugs attached?
The containers are delivered with the caps and plugs attached. They can be used as is.
Are the caps for clean containers cleaned?
The caps that are attached have been through ultrasonic cleaning using pure water and dried with a dryer for clean containers.
Do you accept used containers for recycling or collection?
Although SEKISUI SEIKEI does not collect containers, we can refer customers to appropriate contractors that do. Please contact us for more information.