Products Food Safety & Microbiology > Biological & Chemical Indicators


ABOUT MESALABS

Mesa Laboratories, Inc. is a growing, highly profitable public company based in Denver, CO. Mesa develops, manufactures and markets, high-quality process validation and monitoring instruments and consumables. From Fortune 500 companies, to high tech start-ups, Mesa Lab’s products are used to assure product quality, control manufacturing processes, and to solve problems in niche markets in healthcare, industrial, pharmaceutical, medical and food processing applications. Mesa Lab’s products are characterized by technical excellence and superior industry reputations.


EzTest®

EZTest® Biological Indicator

PRODUCT OVERVIEW

EzTest (formerly ProTest & ProSpore 2; discontinued) is a self-contained Biological Indicator monitoring system use in Steam/ Flash steam, Ethylene Oxide (EO) or hydrogen peroxide sterilization. Each tubular unit contains bacterial spores on a filter-paper carrier and a special sealed ampoule containing specially formulated soybean casein digest culture medium. The medium color changes into dramatic yellow when spores grow.

Visual results can be seen without laboratory transfers within

  • 24 hours in steam/ hydrogen peroxide use
  • 48 hours in ethylene oxide use

ezTest-group-2-web-300x254

Cat No. Bacteria species (min population) Description Qty/Box
EZS/5 G. stearothermophilus (1 x 10^5) Biological Indicator, EzTest Steam/Flash 100 test/box
EZS/525 G. stearothermophilus (1 x 10^5) Biological Indicator, EzTest Steam/Flash  25 test/box
EZS/6 G. stearothermophilus (1 x 10^6) Biological Indicator, EzTest Steam/Flash 100 test/box
EZS/625 G. stearothermophilus (1 x 10^6) Biological Indicator, EzTest Steam/Flash  25 test/box
EZG/6 B. atrophaeus (1 x 10^6) Biological Indicator, EzTest Ethylene Oxide  100 test/box
EZG/625 B. atrophaeus (1 x 10^6) Biological Indicator, EzTest Ethylene Oxide  25 test/box
EZH/5 G. stearothermophilus (1 x 10^5) Biological Indicator, EzTest Hydrogen peroxide  100 test/box
EZH/6 G. stearothermophilus (1 x 10^6) Biological Indicator, EzTest Hydrogen Peroxide  100 test/box

EzTest® BI Test Pack

  • small & convenient
  • FDA 510(k) notified product containing biological indicators
  • each pack comes with a chemical integrator
  • 24 hours result for steam
  • No laboratory required
  • Releases loads immediately

EZTestPack-Web-300x181


Cat No. Bacteria species (min population) Description Qty/Box
STP/25 G. stearothermophilus (1 x 10^5) Steam Biological Indicator EzTest Pack  (PCD) 25 test/25 controls/box
SRSP/05 G. stearothermophilus (1 x 10^5) Smart-Read® EzTest Steam Biological Indicator Test Pack  (PCD)  25 test/5 controls/box
SRSP/25 G. stearothermophilus (1 x 10^5) Smart-Read® EzTest Steam Biological Indicator Test Pack  (PCD)  25 test/25 controls/box


MagnaAmp Biological Indicator

PRODUCT OVERVIEW

MagnaAmp (formerly ProSpore Ampoule 1 ml; discontinued) is a self-contained Biological Indicator ampoule use for steam sterilization of liquids in ampoules, large containers, or washer sterilizers. MagnaAmp ampoule contains the bacteria Geobacillus stearothermophillus and a specially formulated medium which will change its color into dramatic yellow when spores grow. MagnaAmp promises a result within 48 hours of sterilization works.

  • Results within 48 hours
  • Convenient 1 ml ampoule
  • Designed to sink in container
  • Negative controls included in each box
  • No laboratory Required !
  • Observable color change

 

MagnaAmp-Results-Web-159x300

Cat No. Min bacteria population Description Qty/box
MA/4 1 x 10^4 MagnaAmp Biological Indicator 50/box
MA/5 1 x 10^5 MagnaAmp Biological Indicator 50/box
MA/6 1 x 10^6 MagnaAmp Biological Indicator 50/box


Prospore 4 ml Ampoule

PRODUCT OVERVIEW

ProSpore Ampoule by Mesa Labs is a self-contained Biological indicator for use in steam sterilization. Having received its 510k, the ampoule is suitable to be used in healthcare applications. This ampoule is ideal for liquids which requires longer sterilization time.

Each ProSpore ampoule (4 ml) is filled with modified Soybean Casein Digest containing bromocresol (a purple indicator which turns into yellow in the presence of Geobacillus stearothermophilus) and a population of G. stearothermophilus spores.  The ampoule is hermetically sealed in a type I borosilicate glass.

  • No activation is required
  • Just expose the ampoule in a sterilizer and incubate afterwards
  • Strains are derived from recognized strains specified within UPS, ISO or EN
  • THIS ITEM IS REFRIGERATED AND REQUIRES EXPEDITED SHIPPING

ProSpore-Ampoule 4ML

Cat No. Bacteria species (population) Description Qty/Box
PS-4-10 G. stearothermophilus (1 x 10^4) ProSpore 4 ml Ampoule 10/box
PS-4-50 G. stearothermophilus (1 x 10^4) ProSpore 4 ml Ampoule 50/box
PS-5-10 G. stearothermophilus (1 x 10^5) ProSpore 4 ml Ampoule 10/box
PS-5-50 G. stearothermophilus (1 x 10^5) ProSpore 4 ml Ampoule 50/box
PS-6-50 G. stearothermophilus (1 x 10^6) ProSpore 4 ml Ampoule 50/box


Spore Strips

PRODUCT OVERVIEW

Mesa Labs offers a complete line of spore strips for sterility testing in various sterilization environments for both Healthcare and Industrial applications. Mesa’s products are manufactured in accordance with USP Guidelines and the US Food & Drug Administration’s Quality System Regulations.

  • Geobacillus stearothermophilus* – For use in steam sterilization at 121.1°C (250° F) to 135°C (275° F), Low Temperature Steam w/Formaldehyde and Chemiclave®. After exposure to sterilant, incubate strips at 55-60°C.
  • Bacillus atrophaeus* – For use in Ethylene Oxide (600 mg/L), Dry Heat Sterilization (D-value calculated at 160°C), and formaldehyde fumigation. After exposure to sterilant, incubate strips at 30-35°C.
  • Bacillus pumilus* – Used for validation of irradiation sterilization processes. After exposure to sterilant, incubate strips at 30-35°C.
  • Combined Species Spore Strips – G. stearothermophilus* (105) and B. atrophaeus* (106) on each strip. For use in Steam, EO, Dry Heat or Chemiclave® sterilizers.

Cat No. Bacteria (Population) Description Packing
3-1000 G. stearothermophilus (10^5) Spore Strip for Steam 1000 strips/pack
3-5100 G. stearothermophilus (10^5) Spore Strip for Steam 100 strips/pack
3-6100 G. stearothermophilus (10^6) Spore Strip for Steam 100 strips/pack
1-1000 B. atrophaeus  (10^6) Spore Strip for EO/Dry heat 1000 strips/pack
1-6100 B. atrophaeus  (10^6) Spore Strip for EO/Dry heat 100 strips/pack
1-6500 B. atrophaeus  (10^6) Spore Strip for EO/Dry heat 500 strips/pack
5-1000 B. atrophaeus (10^6) & G. stearothermophilus (10^5) Spore Strip, Combined 1000 strips/pack
5-5100 B. atrophaeus (10^6) & G. stearothermophilus (10^5) Spore Strip, Combined 100 strips/pack

Cat No. Description Fill amount Qty/box
TSB-BP16 Tryptic Soy Broth with Bromocresol purple 6.5 ml 100/box

Mesa Strips

PRODUCT OVERVIEW

MesaStrip is a conventional paper strip biological indicator for monitoring steam, low temperature steam formaldehyde, ethylene oxide, dry heat, chlorine dioxide, and gamma radiation industrial sterilization processes. Each strip contains bacterial spores on a filter paper carrier sealed within a convenient, peel-open envelope.

To use a MesaStrip, simply place the envelope inside a product or product package. This “inoculated package” is placed in a sterilizer and processed. Upon removal from the sterilizer, the inoculated package is sent to the microbiology laboratory for transfer of the MesaStrip. The BI is to be aseptically cultured in soybean casein digest medium, and incubated at the appropriate temperature for 7 days.

  • Autoclave validations
  • Ethylene Oxide sterilization
  • Steam Applications
  • Irradiation Sterilization
  • Multiple Species available
  • Room temperature storage

mesastrip-biological-indicator

Cat No. Bacteria (Population) Description Qty/Box
SGMS/3 G. stearothermophilus (10^3) MESAStrip for Steam 100 box
SGMS/5 G. stearothermophilus (10^5) MESAStrip for Steam 100 box
SGMS/6 G. stearothermophilus (10^6) MESAStrip for Steam 100 box
SGMG/6 B. atrophaeus (10^6) MESAStrip for EO/Dry heat 100 box
SGMSU/6 B. subtilis (10^6) MESAStrip for Steam (Low Temp) 100 box
SGMR/6 B. pumilis (10^6) MESAStrip for Radiation 100 box
ACD/6 B. atrophaeus (10^6) MESAStrip for Chlorine dioxide 100 box

 


Spore Suspensions

PRODUCT OVERVIEW

Mesa spore suspensions are calibrated suspensions of bacterial spores appropriate for direct inoculation of products or preparing custom biological indicators for monitoring steam, ethylene oxide, dry heat, hydrogen peroxide, radiation, and other industrial sterilization processes. Each vial contains 10ml of suspension. The suspending liquid is 40% ethanol.

  • Available in ethanol and aqueous
  • Other bacterial spores available on request (Bacillus subtilis 6633 & Bacillus subtilis 5230)

Cat No. Bacteria (population) Packaging Diluent Description
SSSE/4 G. stearothermophilus (10 x 4/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, G. stearothermophilus
SSSE/5 G. stearothermophilus (10 x 5/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, G. stearothermophilus
SSSE/6 G. stearothermophilus (10 x 6/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, G. stearothermophilus
SSSE/7 G. stearothermophilus (10 x 7/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, G. stearothermophilus
SSSA/7 G. stearothermophilus (10 x 7/0.1 ml) 10 ml vial Aqueous Spore Suspension, G. stearothermophilus
SSGE/4 B. atrophaeus (10 x 4/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, B. atrophaeus
SSGE/5 B. atrophaeus (10 x 5/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, B. atrophaeus
SSGE/6 B. atrophaeus (10 x 6/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, B. atrophaeus
SSGE/7 B. atrophaeus (10 x 7/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, B. atrophaeus
SSGE/8 B. atrophaeus (10 x 8/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, B. atrophaeus
SSRE/4 B. pumilis (10 x 4/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, B. pumilis
SSRE/5 B. pumilis (10 x 5/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, B. pumilis
SSRE/6 B. pumilis (10 x 6/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, B. pumilis
SSRE/7 B. pumilis (10 x 7/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, B. pumilis
SSRE/8 B. pumilis (10 x 8/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, B. pumilis
SS6633E/4 B. subtilis (10 x 4/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, B. subtilis
SS6633E/5 B. subtilis (10 x 5/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, B. subtilis
SS6633E/6 B. subtilis (10 x 6/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, B. subtilis
SS6633E/7 B. subtilis (10 x 7/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, B. subtilis
SS6633E/8 B. subtilis (10 x 8/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, B. subtilis
SS6633A/7 B. subtilis (10 x 7/0.1 ml) 10 ml vial Aqueous Spore Suspension, B. subtilis
SS5230E/4 B. subtilis (10 x 4/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, B. subtilis
SS5230E/5 B. subtilis (10 x 5/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, B. subtilis
SS5230E/6 B. subtilis (10 x 6/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, B. subtilis
SS5230E/7 B. subtilis (10 x 7/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, B. subtilis
SS5230E/8 B. subtilis (10 x 8/0.1 ml) 10 ml vial 40% Ethanol Spore Suspension, B. subtilis
SS5230A/7 B. subtilis (10 x 7/0.1 ml) 10 ml vial Aqueous Spore Suspension, B. subtilis


Bowie-Dick Test

PRODUCT OVERVIEW

Air Removal Test Pack – Intended to evaluate the performance of the Air Removal (vacuum) system of Pre-Vacuum equipped Steam Sterilizers at 121° C (Industrial Use Only).

Pre-assembled, disposable test pack. After exposure, unwrap pack and remove the indicator sheet for your records.

ProChem BD

  • Lead Free Ink on Indicator Sheet – Safer for medical personnel and the environment.
  • Distinct, non-reversible pink to black color change – easy to interpret.

ProChem BD 121

  • Industrial Use Only
  • evaluate the performance of the Air Removal (vacuum) system of Pre-Vacuum equipped Steam Sterilizers at 121° C


ProChem BD110

  • Meets AAMI, EN-867-3 and ISO 11140 air removal test.
  • Distinct, non-reversible Blue to Black color change – easy to interpret
  • Industrial International Use Only

prochem bd 110

Cat No. Packing Description
CI-BDTLF 20packs/box Bowie Dick Test Pack w/Lead Free Ink
CI-BDTLF121 20packs/box Bowie Dick Test w/Lead Free Ink    
CI-BD110 100 sheets/ pack Bowie Dick Test w/Lead Free Ink


ProChem EXT

PRODUCT OVERVIEW

ProChem EXT is a Class 5 Integrating Indicator (Integrator) that is designed to accurately depict the lethality of steam sterilization cycles at 121°C (250°F) and 135°C (275°F). ProChem EXT changes from its green color to black upon exposure to adequate sterilization conditions for 7 minutes at 135°C and 20 minutes at 121°C representing an overkill or extended cycle.

Intended for use in steam sterilizers 121°C or 132-135°C. Not intended to replace regular BI testing. When used as directed, ProChem EXT integrator strips provide immediate visual confirmation of adequate steam penetration into packs. During exposure to steam, the indicator strip turns from green to black. If the strip becomes as dark or darker than the color standard, sterilization conditions were met at point of placement.

ProChem EXT is packaged with 250 integrators per box. Use ProChem EXT in conjunction with BIs as described in current AAMI Standards and Recommended Practices: Good Hospital Practice: Steam Sterilization and Sterility Assurance. Use according to the instructions on the box.

ProChem EXT (Steam Sterilization Integrator)

  • Class 5 Integrator
  • Extended Timing Beyond Biological Kill
  • Clear, distinct, non-reversible color change
  • 250 indicators/box
  • Expires 5 years from date of manufacture
  • 510(k) Notified as a Steam Integrator at 121°C and 132°C to 135°C

Cat No. Packing Description
CI-EXT 250pcs/box ProChem EXT Steam Integrator for 121 and 135 deg C Autoclave Cycle


Dry Heat Labels

PRODUCT OVERVIEW

Dry Heat Indicator Labels (DHI Labels) clearly distinguish processed from unprocessed items when used as directed.

Eliminate personnel error and confusion by applying DHI Labels to all items to be sterilized. DHI Labels also can indicate sterilizer malfunction. DHI Labels are adhesive backed allowing them to easily be applied to items. Mesa Labs DHI labels are packaged 1500 to a roll.

The labels are printed with a chemical indicator that changes from green to brown when exposed to Dry Heat conditions. This color change allows the technician to immediately distinguish processed from unprocessed items. Color change is non-reversible.

DHI Labels received a 510K notification for use as a process indicator for Dry Heat Sterilization at 160°C. DHI Labels are manufactured in an FDA registered facility pursuant to current Quality System Regulations (QSRs).

  • 3 years expiry date
  • Color change from green to dark brown/black
  • Easy distinguish between processed and unprocessed items


Cat No. Packing Description
R01-CI-DHI 1000pcs/roll Indicator Labels, Dry Heat Process