Duo Spore® Biological Monitoring System Test Kit with Mail-In Culture Service

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Weight 0.3000
Brand Propper
Duo Spore® 12 Biological Indicator Test for Sterilization Processes — Mail-in Spore Test with Culture Service

Monitor the efficacy of steam, ethylene oxide (EO) gas, dry heat, and chemical vapor sterilization processes with this easy-to-use mail-in service. The Duo Spore® Biological Indicator Test is designed to help keep you and your shop compliant with federal, state, and local sterilizer monitoring requirements.

Each kit contains 12 culture service envelopes with two test strips and one control strip, 12 sterilization report forms, a certification card, and instructions for use. Each envelope is pre-addressed, and culture service performed at Propper’s in-house microlab is included. Test results are received upon completion of incubation; if the culture is positive, you will be contacted immediately by phone and email.

  • Quantity: 12 Tests
  • Easy to use
  • Mail-in culture service included
  • Testing performed by Propper’s in-house microlab
  • Immediate contact upon positive growth results
  • Online access to sterilizer test results
Duo Spore® Instructional Insert PDF
Size Table

Standard Body Jewelry Measurements

The following webchart is a quick reference guide for standard body jewelry measurements and how to measure basic body jewelry. Please print this webchart to help measure your body jewelry accurately.

Size Reference Chart

Visit our PainfulPleasures Infocenter for additional body jewelry information. There, you will find detailed articles on standard body jewelry sizes, how to measure body jewelry, basic body jewelry, and more.

Standard Body Jewelry Threading

Ensure compatibility between standard (non-custom) PainfulPleasures body jewelry parts using the tables below. More information on threading, including custom thread patterns, can be found in our Threading Infocenter article.

Internally threaded jewelry has a threaded post on the top and/or end, which is then inserted into a threaded hole in the barbell shaft.

Internal Thread Patterns by Gauge


18g, 16g

14g, 12g


Internal Thread Pattern

0.8mm or 0.9mm



Externally threaded jewelry has a threaded post on the barbell shaft, which is then inserted into a threaded hole in the top and/or end.

External Thread Patterns by Gauge


18g, 16g

14g, 12g, 10g

External Thread Pattern



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