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Test Method: SATRA TM217

Resistance to surface wetting (spray rating)

June 1999

SCOPE

This method is intended solely to assess the resistance to surface wetting of a material by water. The method is not intended to measure the ability of a fabric to resist water penetration. The method is applicable to all fabrics and to fabric samples cut from garments.

PRINCIPLE

A specified volume of distilled or deionised water is allowed to fall through a spray rose onto a test specimen which is inclined at an angle of 45 degrees and positioned a specified distance below the spray rose. The sprayed test specimen is assessed against standard photographs and the degree of wetting recorded as a spray rating and corresponding descriptive term.

The test may be carried out on test specimens of original, worn, dry cleaned or laundered material.

REFERENCES

AATCC 22: 1996 – Water repellency and spray test.
BS EN 24920: 1992 – Determination of resistance to surface wetting (spray test) of fabrics.
ISO 3696: 1987 – Water for analytical laboratory use – specification and test methods.
ISO 4920: 1981 – Determination of resistance to surface wetting (spray test) of fabrics.

HISTORY

First issued June 1999.

AVAILABILITY

This test method is available to members and non-members.

PRICE (ex. VAT)

This price is for a printed copy of the Test Method.

  • Members: £65
  • Non-members: £195

TYPE

USAGES

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