Knitted Mask & Filter Test Report

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

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