This standard specifies the test methods for the most penetrable particle size of textiles and their filtration efficiency. This standard is applicable to all kinds of air filter fabrics and their products.
GB/T 38398-2019 Referenced Document
GB/T 6682 Water for analytical laboratory use.Specification and test methods
GB/T 38398-2019 history
2019GB/T 38398-2019 Textiles—Filtration performance—Determination of most penetrating particle size