Prepare the Specimen
A 40 × 100 mm specimen is sewn to a multifibre strip along one short edge.
Knit Fabric Manufacturer Since 2009 · China
TEST METHOD · ISO 105-E01
Colour Fastness to Water ISO 105-E01
ISO 105-E01 shows whether a fabric bleeds colour when wet. It uses the same equipment as the perspiration test, with water instead of sweat. The US equivalent is AATCC 107.
Specimens cut from the bulk lot.
Standard
ISO 105-E01:2013
US equivalent
AATCC 107
Conditions
37 °C · 4 h · 12.5 kPa
Grading
Grey scales, 1–5
01
What This Test Measures
The fabric and a multifibre strip are soaked in distilled water, held under pressure at body temperature, dried and graded. Poor results show up as bleeding onto light fabrics in a wet garment or damp storage.
02
How We Run It in Our Lab
Our technicians follow a written work instruction for this method.
Water and perspiration tests share equipment and are often run together.
Soak
The composite is fully wetted in distilled water for 30 minutes, then excess water is removed.
Hold Under Pressure
Specimens are held between resin plates under 12.5 kPa at 37 ± 2 °C for 4 hours.
Dry and Grade
Dried at no more than 60 °C. Graded with the ISO 105-A02 grey scale for colour change and A03 for staining (AATCC EP1/EP2 for AATCC methods), under the agreed light source in a light booth, by at least two technicians.
03
Test Conditions
Key settings. Write the method and procedure in your specification.
| Parameter | Setting |
|---|---|
| Liquid | Distilled (grade 3) water |
| Pressure and incubation | 12.5 kPa; 37 ± 2 °C for 4 hours |
| Grading | Grey scales, 1–5 |
| Equivalent methods | AATCC 107 (US) · GB/T 5713 (China). Compare methods → |
04
Results for Your Order
Ask us for results for the selected fabric, shade and test conditions. Acceptance values for your order are agreed in writing.
05
Writing This Test into Your Specification
Pair It with Wet Rubbing
Water fastness and wet rubbing describe related risks; specify both for dark shades.
Separate Change and Staining
Give one grade for colour change and one for staining.
Name the Method
ISO 105-E01, AATCC 107 and GB/T 5713 are similar but not identical.
06
Questions About ISO 105-E01
What does colour fastness to water show?
Whether a fabric bleeds colour when wet, which predicts staining when wet garments touch light fabrics.
Is ISO 105-E01 the same as AATCC 107?
They test the same property in a similar way, but details differ, so the method should be named in the specification.
Which shades need the most attention?
Dark and bright shades, especially on cotton.