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 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
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Product information
EasyDisc R2A Test (25-test pack)
Product number: 98-0013457-00
Catalogue number: WR2A25
EasyDisc R2A Test (100-test pack)
Product number: 98-0013456-00
Catalogue number: WR2A100
IDEXX-QC HPC/TVC Kit
Product Number: 98-29006-01
Catalogue Number: WQC-HPC
Resources
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ISO certifications
†Heterotrophic plate count (HPC) is also referred to as total plate count (TPC) or total viable count (TVC) in some regions.
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.