Today, Percival Scientific continues to set the standard of excellence for the environmental control industry and occupies over 60,000 sq. ft. of manufacturing space dedicated to the production of over 50 different models of plant growth chambers, biological incubators and special application chambers. To ensure each unit is of the highest quality and dependability, all Percival chambers are handcrafted in Perry, Iowa. Innovating pursuits of superior control of temperature, humidity and lighting have kept Percival at the forefront of their industry. The company also produces chamber accessories and offers a variety of optional accessories to meet specific customer needs.
Percival Scientific’s chambers and incubators have features not offered by any other company and are the preferred choice of universities, colleges, government institutions and private firms in all 50 states and throughout the world. Outside of the university laboratory setting, Percival serves well-known clients, such as: Dow AgroSciences, Pioneer Hi-Bred, Monsanto, Novartis, NASA, Eli Lilly, Merck Pharmaceuticals, Revlon, Mary Kay Cosmetics, Shedd Aquarium, and Campbell’s Soup.
Originally established in 1886, by C.L. Percival and J.E. Smith, Percival Manufacturing in Des Moines, Iowa, initially manufactured and sold butcher tools, machinery and fixtures. By 1901, the need for a refrigerated cabinet became evident, prompting Percival to pursue and receive a patent. Forty years later, in 1941, the company moved to a new 24,000 sq. ft. facility and continued to manufacture a complete line of refrigerated display units.
In the early 1950’s, at the request of Iowa State University, Percival became involved in creating the first commercially available plant growth chamber. This began the company’s tradition of designing and manufacturing chambers that control the environment for specific research applications. Additionally, Percival recently partnered with Iowa State University’s Department of Engineering to create a highly resourceful incubator control package that is an exclusive product in the industry.
From its beginning on the Central Iowa Plains, Percival Scientific has grown to represent a rich tradition of product ingenuity and reliability throughout the world. With a history that spans more than a century, Percival will continue its commitment to improving research methods that will impact tomorrow.
Products and Services
Percival Scientific continues to set the standard of excellence for the environmental control industry, producing several lines of plant growth chambers, biological incubators, environmental control rooms, dew formation chambers, and various special application chambers including: plant tissue culture, arabidopsis, seed germination, drosophila, stability chambers, animal housing, and emergence cases.
To ensure each chamber is of the highest quality and dependability, all Percival units are handcrafted and performance tested. Percival’s product line has features not offered by other companies and is the preferred choice of universities, colleges, government institutions and businesses both domestically and internationally. Percival’s facility encompasses all engineering, design, fabrication, and construction of the product line, allowing Percival Scientific to maintain complete control of the manufacturing process. This dedication ensures customers the highest quality product upon which they have come to depend.
Percival Scientific has grown to represent a rich tradition of product ingenuity and reliability throughout the world. We provide our clients with reliable custom solutions designed to meet their specific research requirements. Customers rely upon Percival to meet their unique needs by providing chambers that are engineered and manufactured to their unique specifications. The ability to meet individual requirements to control multiple extensive critical testing variables has allowed our company to become an industry leader.
Terms and Conditions
Shipment and Delivery
Shipping dates are approximate and based on prompt receipt of all necessary information by Percival Scientific. Percival shall not be liable in damages to the Purchaser for default or delay in the production or delivery of all or a portion of the order where such default or delay results either directly or indirectly from causes beyond our control. Our best efforts are put forth to make delivery within the time estimated, but failure to affect shipment as estimated will not be considered cause for cancellation and/or claims arising from such delay.
The acceptance of any order or specification and terms of payment are subject to the approval of the corporate office, and all sales contracts become effective only when approved and accepted in writing by the corporate office.
Any variation in these terms and conditions shall not be binding unless in writing and signed by one of our authorized officers.
After acceptance, orders shall not be subject to cancellation by the Purchaser, unless the Purchaser fully protects Percival Scientific against any incurred cost. A standard restocking fee may be applied.
Prices quoted do not include extra cost of handling and warehouse storing charges if delivery is postponed by Purchaser after the order has been started into the manufacturing processes.
Installation and Testing
If Percival Scientific has been requested to perform the installation and commissioning of its equipment, the installation and commissioning cost will be quoted separately and will depend upon the extent of available help, equipment, and most importantly, accessibility to the installation site and site conditions.
When Percival is contracted to perform product installation, it is understood that, for both parties, time is of the essence and they mutually agree to see to the performance of their respective work. If Percival’s progress is hampered because of delays in the owner’s responsibilities then Percival shall be compensated for said delays.
Percival Scientific assumes no liability for consequential damages of any kind. The Purchaser, by acceptance of this equipment, will assume all liability for the consequence of its use or misuse of the Purchaser, his/her employees, or others.
All products manufactured are warranted to be free from defects in material or workmanship for a period of 24* months from date of shipment. Our obligation under this warranty is limited to the repair of defect at no change for parts, labor and transportation.
This warranty is limited to products purchased and installed in the United States. It does not apply to damage caused by accident, misuse, fire or acts of God. It does not apply to damage caused from failure to properly install, operate or maintain the product(s) in accordance with the printed instructions.
This warranty is in lieu of any warranties, expressed or implied, including merchantability or fitness for particular purpose.
Extended Warranty Options: Optional warranty extensions available from Geneva Scientific.