# PSL Capillary Viscosity experts - Manufacturers
PSL Rheotek manufactures and supplies capillary viscometry equipment for the polymer industry. Established in the 1990s, they specialize in automated viscometers, glass capillary viscometers, viscometer baths, and certified viscosity reference standards. They serve polymer manufacturers, compounders, extruders, and recyclers worldwide, offering instruments that measure intrinsic viscosity (IV), K-Value, and relative viscosity for materials like PET, PA, PVC, and other polymers according to international standards (ASTM D4603, ISO 307, ISO 1628).
PSL Rheotek enables polymer manufacturers and recyclers to ensure material quality, consistency, and compliance through precision capillary viscometry instruments and certified testing solutions

## Key Facts
- 200+ automated viscometers sold globally
- 1,300+ satisfied clients across 57 countries
- 173 years of combined industry history
- Known for the RPV Polymer Viscometer - industry standard since the 1990s
- Full lifecycle support for all equipment, regardless of age

## Company Information
- [About us](https://psl-rheotek.com/about-us/): Learn about PSL Rheotek, its mission, and its expertise in capillary viscosity measurement.
- [Contact](https://psl-rheotek.com/contact/): Get in touch with PSL Rheotek for inquiries or support.
- [Careers](https://psl-rheotek.com/careers/): Explore career opportunities at PSL Rheotek and join their team.

## Products
### Automated Systems
- [Automated viscometers](https://psl-rheotek.com/auto-viscometers/): RPV Polymer Viscometer systems for automated IV, K-Value, and RV measurements

### Manual Equipment
- [Glass viscometers](https://psl-rheotek.com/glass-viscometers/): Calibrated capillary viscometers for manual testing
- [Viscometer baths](https://psl-rheotek.com/viscometer-baths/): Temperature-controlled baths for precise viscosity measurements

### Standards & Accessories
- Viscosity reference standards: Certified oils for calibration and verification
- [All Products](https://psl-rheotek.com/products/): Complete product catalog
- [Online shop](https://shop.psl-rheotek.com/): Purchase viscometers, accessories, and standards

## Services
- [Custom solutions](https://psl-rheotek.com/custom-solutions/): Tailored viscometry solutions for proprietary test protocols
- [Contract polymer testing](https://shop.psl-rheotek.com/): Laboratory testing services for PET, PA, PVC polymers with certified reports
- Calibration services: Viscometer calibration and certification
- Technical support: Ongoing service support from specialists

## Industry
- Polymer testing equipment
- Laboratory instrumentation
- Quality control & materials testing
- Plastics manufacturing and recycling

## Standards & Compliance
- ASTM D4603 (PET IV)
- ISO 307 (Polyamides)
- ISO 1628 (Plastics — viscosity number and intrinsic viscosity)
- Calibration traceability to international standards
- US Pharmacopeia
- European Pharmacopoeia (Ph. Eur.)
- ASTM D2857
- ISO 5351
- ASTM D789

## Applications
- Virgin resin quality control
- Polymer compounding
- Plastic recycling and regrind testing
- PET bottle manufacturing
- PVC pipe and profile production
- Polyamide (Nylon) processing
- rPET 
- Hyaluronic Acid
- Polydioxanone (PDO)
- Pulp & Cellulose

## Support
- [Support](https://psl-rheotek.com/support/): Access support resources and assistance for PSL Rheotek products.
- [Contact Us](http://psl-rheotek.com/contact/): Direct link for customer support inquiries.

## Heritage
PSL Rheotek instruments are designed and manufactured in the UK with engineering roots dating back to classical glass capillary viscometry and automated polymer testing innovation in the 1990s.

## Locations
- [PSL Rheotek UK](https://psl-rheotek.com/): Information about the PSL Rheotek headquarters located in the United Kingdom.
- [Russell House, Burnham Business Park, Burnham-on-Crouch, Essex, CM0 8TE, United Kingdom](https://goo.gl/maps/SKc2KWj3mmHv2cNM9): Address of the UK headquarters.

- [PSL Rheotek USA](https://psl-rheotek.com/us/support/): Information about the PSL Rheotek branch located in the USA.
- [12692 Sandy Drive, Suite 115 Granger, 46530 Indiana](https://goo.gl/maps/8zC5T478wbixgdRa9): Address of the US office.

## Communication
- [LinkedIn](https://www.linkedin.com/company/psl-rheotek): Connect with PSL Rheotek on LinkedIn for updates and news.
- [Terms and Conditions](http://psl-rheotek.com/general-terms-and-conditions/): Review the terms and conditions applicable to PSL Rheotek's services and products.
- [Blog - PSL](https://psl-rheotek.com/blog/): Read the latest articles and insights on viscosity measurement and related topics.

## Contact Information
- Phone (UK): [+44 (0)1621 787 100](tel:+441621787100)
- Email (UK): [sales@psl-rheotek.com](mailto:sales@psl-rheotek.com)
- Phone (USA): [574.271.9417](tel:574.271.9417)
- Email (USA): [usa-service@psl-rheotek.com](mailto:usa-service@psl-rheotek.com)