EasyDisc R2A Test
Heterotrophic plate counts in 5–7 days
- No equipment, autoclaving, or agar preparation
- Results in 5–7 days when incubated at 20–28°C
- Easy-to-count blue colonies, designed to correlate with the pour plate method (SM 9215) using Reasoner’s 2 agar1
- Published by ASTM International as Standard D8516-23
Easy-to-use platform reduces waste and improves workflow
- 18-month shelf life eliminates waste and improves workflow
- 1-minute hands-on time
- Reduced QC
- Available in both 25-pack and 100-pack configurations
Easy to run
Step 1. Remove lid and add 1 mL sample to the EasyDisc R2A plate.
Step 2. Gently swirl the plate to distribute the liquid, replace the lid, and incubate at room temperature for 20 minutes.
Step 3. Continue incubating at 20–28°C for 5–7 days.
Step 4. Count all colonies.
Frequently asked questions
The shelf life is up to 18 months from date of manufacture.
Store at 2–25°C away from light and humidity.
Yes, the base and lid are both sterilized. There are 25 plates per plastic sleeve. Any unused plates should remain in the bag and the bag should be closed. Do not leave any unused plates exposed to the environment.
The clear bottom portion of the plate is made of polystyrene #6 and is recyclable. The white cover/lid is made of low-density polyethylene #4 and is also recyclable.
Water samples are incubated at 20–28°C for 5–7 days.
Check with your local, state, and/or federal authorities for proper disposal of bacteriological biohazard materials at your facility.
Resources and tools
Tests and accessories
Search the Water Tests & Accessories tool
Product information
EasyDisc R2A Test (25-test pack)
Product number: 98-0013457-00
Catalog number: WR2A25
EasyDisc R2A Test (100-test pack)
Product number: 98-0013456-00
Catalog number: WR2A100
IDEXX-QC HPC/TVC Kit
Product number: 98-29006-01
Catalog number: WQC-HPC
Resources
IDEXX Water has reference materials and approval documents to support the many products in our water portfolio. Find the document(s) you need by selecting the link below.
Search the Reference & Regulatory Documents tool
Water Customer Support
Corporate Headquarters
IDEXX Laboratories, Inc.
One IDEXX Drive
Westbrook, Maine 04092 USA
Tel: 1-800-321-0207
Fax: 1-207-556-4630
water@idexx.com
Water International
Australia
Brazil
Canada
China
France
Germany
Italy
Japan
Latin America
Spain
Taiwan
United Kingdom
ISO certifications
Reference
1. 9215 Heterotrophic plate count. In: Baird RB, Eaton AD, Rice EW, eds. Standard Methods for the Examination of Water and Wastewater. 23rd ed. Washington, DC: American Public Health Association, American Water Works Association, Water Environment Federation; 2017.