Color Fastness to Acid Perspiration (GB/T 3922-2013) 4-5
Color Fastness to Alkaline Perspiration(GB/T 3922-2013) 4-5
Color Fastness to Water (GB/T 5713-2013) 4-5
Color Fastness to Rubbing (GB/T 3920-2008) 4-5
Color Fastness to Saliva (GB/T 18886-2019) 4-5
Color Fastness to Washing (GB/T 3921-2008) A(1), 40℃ 4-5
Formaldehyde (GB/T 2912.1-2009) Category MDL =20mg/kg ≤20
PH Value (GB/T 7573-2009 0.1mol/L KCl extraction) 6.7
Determination of Odour (GB 18401-2010, 6.7) Odorless
AZO (GB/T 17592-2011) MDL =5mg/kg / The limit value of the Aromatic Amines ≤20mg/kg Not Detectable
Knitted Mask Test Report
Mask Lining KN95 Test Report
Mask samples , click to learn more.