Last synced on 18 April 2025 at 11:05 pm

Liquid Chemical Processing System

Page Type
Product Code
Definition
The liquid chemical processing system is intended as a standard method for routine monitoring.
Physical State
The liquid chemical processing monitor consists of a filter paper-based carrier (¼ in x 1⅜ in) inoculated with G. stearothermophilus 7953 spores and packaged in a glassine envelope, a vial containing 5 ml of modified Trypticase Soy Broth with the pH indicator, phenol red media and closed with a screw cap, and a transfer clip.
Technical Method
The device is placed in the system with the load. During the processing cycle, the liquid chemical processing monitor is exposed to the liquid chemical. Some of the spores on the strip will be killed and and some of the spores will be physically washed off the strip.
Target Area
This device is has no patient contact.
Regulation Medical Specialty
General Hospital
Review Panel
General Hospital
Submission Type
510(K)
Device Classification
Class 2
Regulation Number
880.6887
GMP Exempt?
No
Summary Malfunction Reporting
Ineligible
Implanted Device
No
Life-Sustain/Support Device
No
Third Party Review
Not Third Party Eligible

CFR § 880.6887 Spore test strip

§ 880.6887 Spore test strip.

(a) Identification. The spore test strip consists of a carrier or strip with a known number of spores, at least 5 log10 per strip, of known resistance to a particular liquid chemical sterilant in a liquid chemical sterilant processing system. A “no growth” result from the spore test strip after the specified predetermined incubation period indicates that the liquid chemical sterilization process achieved the conditions necessary to kill the specified minimum number of viable spores on the test strip which is 5 log10 spores/strip; it does not confirm the expected full performance of the liquid chemical sterilant processing cycle because full performance is a 6 log10 spore kill in a full liquid chemical sterilization cycle.

(b) Classification. Class II (special controls). The special controls for this device are:

(1) Spore strip characterization. (i) Population of viable spores on strip shall be a minimum of 5 log10 after physical wash off of spores from the strip by exposure to liquid chemical sterilant in the liquid chemical sterilant processing system, which should be validated over the claimed shelf life.

(ii) The resistance characteristics of the viable spores on the strip should be defined and be validated over the claimed shelf life.

(iii) The spore strip description should address the carrier material, how the spores are placed on the carrier, and whether there is any feature that minimizes spore wash off. Bacteriostasis of the spore strip materials should be evaluated.

(iv) Incubation time for viable spores on the strip should be validated under the specified incubation conditions over the claimed shelf life.

(2) Simulated Use Testing. Simulated use testing should demonstrate performance of spore test strip in liquid chemical sterilant/high level disinfectant under worst case in use conditions over the claimed shelf life.

(3) Labeling. Labeling should specify appropriate instructions, warnings, cautions, limitations, and information relating to viable spore population, resistance characteristics, and interpretation of a “no growth” result.

[87 FR 8194, Feb. 14, 2022]

Liquid Chemical Processing System

Page Type
Product Code
Definition
The liquid chemical processing system is intended as a standard method for routine monitoring.
Physical State
The liquid chemical processing monitor consists of a filter paper-based carrier (¼ in x 1⅜ in) inoculated with G. stearothermophilus 7953 spores and packaged in a glassine envelope, a vial containing 5 ml of modified Trypticase Soy Broth with the pH indicator, phenol red media and closed with a screw cap, and a transfer clip.
Technical Method
The device is placed in the system with the load. During the processing cycle, the liquid chemical processing monitor is exposed to the liquid chemical. Some of the spores on the strip will be killed and and some of the spores will be physically washed off the strip.
Target Area
This device is has no patient contact.
Regulation Medical Specialty
General Hospital
Review Panel
General Hospital
Submission Type
510(K)
Device Classification
Class 2
Regulation Number
880.6887
GMP Exempt?
No
Summary Malfunction Reporting
Ineligible
Implanted Device
No
Life-Sustain/Support Device
No
Third Party Review
Not Third Party Eligible

CFR § 880.6887 Spore test strip

§ 880.6887 Spore test strip.

(a) Identification. The spore test strip consists of a carrier or strip with a known number of spores, at least 5 log10 per strip, of known resistance to a particular liquid chemical sterilant in a liquid chemical sterilant processing system. A “no growth” result from the spore test strip after the specified predetermined incubation period indicates that the liquid chemical sterilization process achieved the conditions necessary to kill the specified minimum number of viable spores on the test strip which is 5 log10 spores/strip; it does not confirm the expected full performance of the liquid chemical sterilant processing cycle because full performance is a 6 log10 spore kill in a full liquid chemical sterilization cycle.

(b) Classification. Class II (special controls). The special controls for this device are:

(1) Spore strip characterization. (i) Population of viable spores on strip shall be a minimum of 5 log10 after physical wash off of spores from the strip by exposure to liquid chemical sterilant in the liquid chemical sterilant processing system, which should be validated over the claimed shelf life.

(ii) The resistance characteristics of the viable spores on the strip should be defined and be validated over the claimed shelf life.

(iii) The spore strip description should address the carrier material, how the spores are placed on the carrier, and whether there is any feature that minimizes spore wash off. Bacteriostasis of the spore strip materials should be evaluated.

(iv) Incubation time for viable spores on the strip should be validated under the specified incubation conditions over the claimed shelf life.

(2) Simulated Use Testing. Simulated use testing should demonstrate performance of spore test strip in liquid chemical sterilant/high level disinfectant under worst case in use conditions over the claimed shelf life.

(3) Labeling. Labeling should specify appropriate instructions, warnings, cautions, limitations, and information relating to viable spore population, resistance characteristics, and interpretation of a “no growth” result.

[87 FR 8194, Feb. 14, 2022]