EasyDisc YEA Test
Heterotrophic plate counts† in 44 hours
No equipment, autoclaving, or agar preparation
Results in 44 hours when incubated at 36°C and 68 hours when incubated at 22°C
Easy-to-count blue colonies, designed to correlate with ISO 62221
Easy-to-use platform reduces waste and improves workflow
- 12-month shelf life eliminates waste and improves workflow
- 1-minute hands-on time
- Reduced QC
- Available in 25-count and 100-count configurations
Easy to run
Step 1. Remove lid and add 1 mL sample to the EasyDisc YEA 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 22°±2°C for 68±4 hours or 36°±2°C for 44±4 hours.
Step 4. Count all colonies.
Frequently asked questions
Yes, the base and lid are both sterilised. 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 22°C (±2°C) for 68 hours (±4 hours) or 36°C (±2°C) for 44 hours (±4 hours).
Resources and tools
Tests and accessories
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EasyDisc YEA Test (25-test pack)
Product number: 98-0013453-00
Catalog number: WYEA25
EasyDisc YEA Test (100-test pack)
Product number: 98-0013452-00
Catalog number: WYEA100
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.
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Water Customer Support
New Zealand Head Office
IDEXX Laboratories Pty Ltd.
20A Maui Street
Pukete, Hamilton 3200
Phone: 0800 838 522
Fax: 0800 448 443
†Heterotrophic plate count (HPC) is also referred to as total plate count (TPC) or total viable count (TVC) in some regions.
Reference1. International Organization for Standardization. ISO 6222:1999. Water Quality—Enumeration of Culturable Micro-Organisms—Colony Count by Inoculation in a Nutrient Agar Culture Medium. Geneva: International Organization for Standardization; 1999.