Skip to Content
Merck

Key Documents

View All Documentation

Skip To

1.02149

Contact TVC

Envirocheck™, Contact total viable count coated with Nutrient Agar

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View
Size/SKUAvailabilityPrice

About This Item

NACRES:
NA.74
UNSPSC Code:
41116116
Pricing and availability is not currently available.
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Quality Segment

100

material

plastic cap, plastic slide, plastic tube

product line

Envirocheck™

manufacturer/tradename

Envirocheck™

technique(s)

cell counting: suitable (total viable count)

application(s)

food and beverages
surface monitoring
water monitoring

storage temp.

2-8°C

suitability

bacteria (total viable count)

General description

(Total Viable Counts) Envirocheck™
Envirocheck contact total viable count, a semi-quantitative detection of microorganisms on surfaces and in liquids, are flexible paddles that are coated with Nutrient Agar to determine the total viable count of bacteria in sample. Slide A is Coated with Nutrient Agar containing 0.05% Triphenyl Tetrazolium Chloride (TTC) and Slide B Coated with Nutrient Agar. The growth of bacteria on slide A is indicated by red colonies due to the formation of red formazan dye when TTC is reduced.

Application

Envirocheck contact slides can be used for both surface and liquid testing in industrial and environmental monitoring.

Analysis Note

Count the number of colonies on both sides of the paddle- results should not differ by a factor greater than 2, where the colonies on side A will appear mainly in red. In the presence of TTC a few microorganisms may grow less profusely. Always go with the higher counts in case they are not identical on both sides. This represents the microbial load for the test.
Sterility: passes test
pH-value/side one (25 °C): 6.7 - 7.3
pH-value/side two (25 °C): 6.7 - 7.3
Growth/side one
- Escherichia coli ATCC 8739 (WDCM 00012):
good
- Staphylococcus aureus ATCC 6538 (WDCM 00032): fair/good
- Candida albicans ATCC 10231 (WDCM 00054): none/poor
- Bacillus subtilis ATCC 6633 (WDCM 00003): good
- Pseudomonas aeruginosa ATCC 9027 (WDCM 00026): good
- Aspergillus brasiliensis (formerly A. niger) ATCC 16404 (WDCM 00053): good
Growth/side two
- Escherichia coli ATCC 8739 (WDCM 00012):
good
- Staphylococcus aureus ATCC 6538 (WDCM 00032): good
- Candida albicans ATCC 10231 (WDCM 00054): good
- Bacillus subtilis ATCC 6633 (WDCM 00003): good
- Pseudomonas aeruginosa ATCC 9027 (WDCM 00026): good
- Aspergillus brasiliensis (formerly A. niger) ATCC 16404 (WDCM 00053): good
Incubation: 48 hrs.; 35 °C; aerobic; Aspergillus up to 72 hrs.

Legal Information

ENVIROCHECK is a trademark of Merck KGaA, Darmstadt, Germany

Compare Similar Items

View Full Comparison

Show Differences

1 of 1

This Item
1.021371.021471.02136
Contact TVC Envirocheck™, Contact total viable count coated with Nutrient Agar

Millipore

1.02149

Contact TVC

Contact E Envirocheck™, for enterobacteriaceae

Millipore

1.02137

Contact E

Contact DC Envirocheck™, Disinfection Control coated with CASO (Tryptic Soy) Agar

Millipore

1.02147

Contact DC

Contact C Envirocheck™, Contact Total Coliforms/E.Coli coated with Plate Count Agar and Chromocult Coliform Agar

Millipore

1.02136

Contact C

description

Envirocheck™, Contact total viable count coated with Nutrient Agar

description

Envirocheck™, for enterobacteriaceae

description

Envirocheck™, Disinfection Control coated with CASO (Tryptic Soy) Agar

description

Envirocheck™, Contact Total Coliforms/E.Coli coated with Plate Count Agar and Chromocult Coliform Agar

suitability

bacteria (total viable count)

suitability

enterobacteriaceae

suitability

bacteria (microbial load - before and after disinfection)

suitability

Escherichia coli (total count), coliforms

technique(s)

cell counting: suitable (total viable count)

technique(s)

-

technique(s)

-

technique(s)

-

application(s)

food and beverages
surface monitoring
water monitoring

application(s)

food and beverages
surface monitoring
water monitoring

application(s)

food and beverages
surface monitoring
water monitoring

application(s)

food and beverages
surface monitoring
water monitoring

manufacturer/tradename

Envirocheck™

manufacturer/tradename

Envirocheck™

manufacturer/tradename

Envirocheck™

manufacturer/tradename

Envirocheck™

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

Storage Class

11 - Combustible Solids

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Questions

  1. Hallo, wie wird anhand der Anzahl der Kolonien auf KBE/ ml geschlossen?

    1 answer

    1. The Envirocheck is a semi-quantitative step.
      The colonies should be counted on both sides of the paddle – results should not differ by a factor greater than 2. Always go with the higher
      counts in case they are not identical on both sides. This represents the microbial load for the test.

      For surface testing:
      The colony count on each agar side can be calculated into CFU per cm² as follows:
      CFU (actual count) / 9.4 cm² = CFU/ cm²

      For liquid testing:
      The results can be obtained by comparison to the density chart shown in the technical datasheets. You will obtain results in CFU/ml.
      It's an order of magnitude.

      Helpful?

Reviews

No rating value

Active Filters