Face masks coated with antibacterial agents are expected to kill the airborne bacteria as soon as they come in contact with them. The effectiveness of these specialized masks must be tested as per international standards before they are made commercially available to the general public. ISO 20743 and JIS L 1902 provide standardized test methods, conditions, and efficacy criteria for reliable testing and high-quality product development.

Let’s understand the similarities and key differences between ISO 20743 vs. JIS L 1902

ISO 20743 Test method explained –

Methodology: ISO 20743 is a quantitative method to determine the antibacterial efficacy of face masks when challenged with test bacteria. This standard demonstrates three quantitative methods – Absorption, Transfer, and Printing for face mask antimicrobial testing.

To know more about ISO 20743 check out hereISO 20743 explained in detail

JIS L 1902 Test method explained –

Methodology: JIS L 1902 is a revised and harmonized version of ISO 20473, based on Japanese regional situations. JIS L 1902 offers both quantitative and qualitative test methods for face mask antimicrobial testing.
Quantitative methods – Absorption, Transfer, and Printing which are identical to ISO 2743.
One qualitative method – Halo Method.

To know more about JIS L 1902 check out here – JIS L 1902 explained in detail

Similarities between ISO 20473 and JIS L 1902

Mandatory test strains – ISO 20743 and JIS L 1902 standards specify Staphylococcus aureus and Klebsiella pneumoniae as mandatory strains for testing.

Scope of products to be tested – Both tests can be employed on a variety of textile products including face masks, cloth, wadding, thread, bedclothes, home furnishings, and miscellaneous goods.

Face Mask Testing Standards Comparison – ISO 20743 vs JIS L 1902

Both standards provide reliable data for assessing the antimicrobial activity of face masks and other similar textile products. However, the choice of selecting between ISO 20743 or JIS L 1902 will depend upon specific testing goals, target market, and compliance needs.

Key differences between ISO 20743 and JIS L 1902

Compliance – ISO 20743 is developed by the International Organization for Standardization and is a globally recognized standard, hence can be a preferred choice for its wider acceptability. JIS L 1902 is a Japanese Industrial Standard set by the Japanese Standards Association.

Qualitative data – Both standards are applicable for quantitative antimicrobial analysis. However, JIS L 1902 also provides a qualitative test method for antimicrobial analysis.

Looking to test your face mask for antimicrobial efficacy?

Our microbiology experts are here to assist you in choosing the right test for your product needs.

At MIS, we work with various industries/ clients worldwide who are betrothed on the innovation of antimicrobial solutions. Our lab is well-equipped for antiviral and antibacterial face mask testing. In addition to ISO 20743 and JIS L 1902, we offer other face mask efficacy tests such as breathability efficacy, Particle Filtration Efficiency (PFE), Bacterial Filtration Efficiency (BFE) and Viral Filtration Efficiency (VFE) test.

To get a quote for face mask efficacy tests, please feel free to contact our team of experts today.


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