JRP LAB SERVICES

PHYSICAL TESTING FOR SOIL-LESS MEDIA

Porometer - $80

The porometer test standards were developed by North Carolina State University and are done in triplicate with results given as an average. This process takes longer than our other testing processes - our laboratory can only run these tests Monday - Wednesday, once the tests are run the typical turnaround time is 3 business days.  A porometer test includes the following:

Total Porosity---------Percentage of total pore space in the sample                                                        

Container Capacity----------Percentage of water the sample will hold against gravity                                    

Air Space----------Percentage of space in the sample that will not hold water against gravity     

Bulk Density----------Density of the material when completely dry (lbs./cu ft.)                                     

Moist Bulk Density----------Density of the material after draining excess water (lbs./cu ft.)                          

% Moisture----------Moisture of the sample after soaking                                                                      

Initial % Moisture----------Moisture of the sample as received                                                                         

Moisture - $55

Determined by loss on drying and expressed in percent. Typical turnaround time is 3 business days.

Sieve

  • Media Sieve- $55

  • Dry Fertilizer Sieve- $62

  • Sieve by pan- $18

 

Sample is physically separated/sorted to determine various sizes of particles contained in the mix. Results are expressed as percentages of mix retained per specified sieve series. Please contact us at 1-866-522-5752 prior to submitting samples to let us know what screen sizes you require. Typical turnaround time is 3 business days. 

Instructions for Submitting Physical Samples

  1. Please specify if porometer or sieve is needed. Send at least 2 gallons of media in a plastic resealable bag. (Typically, unused media is sent.)

  2. Be sure to label each bag with a unique ID code.

  3. Include a letter stating your name, address, phone, fax, and email address. Specify the physical tests required. (If physical test is not specified, your sample will be treated as a standard nutritional media test.)

  4. Ship samples to: JR PETERS Lab, 6656 Grant Way, Allentown, PA 18106.

  5. If you have any questions, call 1-866-522-5752, ext. 46.

TESTING SERVICES

NUTRITIONAL

Our on-site laboratory functions both to ensure we are delivering the best blend of nutrients in our Jack's fertilizers as well as a problem-solving mecca to provide growers with services and answers to the biggest problems they are facing.

PHYSICAL

The porometer test standards were developed by North Carolina State University and are done in triplicate with results given as an average. This process takes longer than our other testing processes - our laboratory can only run these tests Monday - Wednesday.

REQUEST A TEST KIT

The friendly staff at JR PETERS is more than happy to help you figure out what test is the most appropriate for your situation. Give us a call or send us an email for a prompt response on how to best solve your problem or just stay ahead of the curve.

Our kits are free.

CONTRACT LAB SERVICES

We perform analytical testing for the biggest names in horticulture. Professional growers, horticultural products manufacturers, and university researchers throughout the world trust us to supply accurate and timely services at a reasonable price.

CONTACT US

JR Peters, Inc. 

6656 Grant Way,
Allentown, PA, 18106
Toll Free: 866-522-5752
email: info@jrpeters.com

HAVING TROUBLE?

Having trouble?  That’s where we shine.  The lab and manufacturing facility at JR Peters is literally within steps of all of our staff.  We all work together to solve our growers problems and produce the highest quality products.  Our turnaround time for samples is about 3 business days - that means we can get you real answers if and when you run into bumps along the road.