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Antibacterial Cotton Cloth Test Report - Tiansland

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Update time : 2020-11-25 11:36:49
Nanjing Tiansland Biotechnology Co., Ltd.  TEST REPORT

Incoming information

Sample: Antibacterial cotton cloth
Sample properties: white cotton cloth
Test item: antibacterial rate
Tested bacteria: Escherichia coli, Staphylococcus aureus, Candida albicans
Test basis: GBT 20944.2-2007  Textiles Evaluation for antibacterial activity Part 2: Absorption method

Results of test on E. coli:
Sample name Average number of colonies at 0H (cfu/ml) Average number of colonies in 24H (cfu/ml) Bacterial growth value Antibacterial rate (%)
Blank 1.1×104 5.7×105 1.7 /
Unwashed 1 99.999
Washed once 1 99.999
Washed 20 times 210 99.963

Results of test on  staphylococcus aureus:
Sample name Average number of colonies at 0H (cfu/ml) Average number of colonies in 24H (cfu/ml) Bacterial growth value Antibacterial rate (%)
Blank 9.0×103 3.9×105 1.6 /
Unwashed 1 99.999
Washed once 1 99.999
Washed 20 times 95 99.976

Results of test on Candida albicans:
Sample name Average number of colonies at 0H (cfu/ml) Average number of colonies in 24H (cfu/ml) Bacterial growth value Antibacterial rate (%)
Blank 6.8×103 9.8×104 1.2 /
Unwashed 1 99.99
Washed once  1 99.99
Washed 20 times 490 99.50

Declaration
1. The report is invalid without signatures of relevant responsible person.
2. The report is invalid if there is any alternation.
3. If there is any objection to the test report, it shall be filed to the testing authority within 15 days upon the date of receiving. No late objection will be accepted.  No re-inspection for microbiological test will be accepted.
4. The entrusted test is only valid for the incoming samples.

 

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