ISO 105-G04-2016 pdf free download

ISO 105-G04-2016 pdf free download.Textiles Tests for colour fastness Part G04:Colour fastness to nitrogen oxides in the atmosphere at high humidities
Textiles — Essais de solidité des colons — Partie G04: Solidité des colons aux oxydes d’azote en atmosphere a taux d’huinidité élevés.
The fabric construction has both a taffeta and a satin side; for this test procedure, only the taffeta side will be considered.
The resistance of the test-control fabric to the action of nitrogen oxides should not be varied between the new lots. The supplier should confirm the performance of the new lot.1)
4.2.2 Test-control fabric dyed with Disperse Blue 56
A woven filament acetate is uniformly dyed in an open-width dyeing machine with 0,8 % (on mass of fabric) CI Disperse Blue 56 (Colour Index, Third Edition) in a dye-bath containing 0,5 mI/I of a dispersing agent at a liquor ratio of 42:1.
The fabric construction has both a taffeta and a satin side; for this test procedure, only the taffeta side will be considered.
The resistance of the test-control fabric to the action of nitrogen oxide should not be varied between the new lots. The supplier should confirm the performance of the new lot.2)
4.3 Standard of fading
4.3.1 Standard fading fabric for test-control fabric dyed with Disperse Violet I
The regenerated cellulose woven taffeta is a fabric of similar appearance to the test-control fabric (4.2,1), dyed to match an average of faded test-control fabric.3)
4.3.2 Standard of fading for test-control fabric dyed with Disperse Blue 56
It is considered that the standard of fading is completed when a faded test-control fabric (4.2.2) is observed to have a contrast equal to grade 3-4 on the in grey scale.
4.4 Grey scale for assessing change in colour, complying with ISO 105-A02.
4.5 Nitrogen oxide
Use bottled gas which contains approximately I %, nitrogen dioxide in nitrogen, in cylinders equipped with the proper reducing valves. For safety, chain the cylinders to a wall so that they cannot fall or be knocked down.
WARNING — Nitrogen oxide in high concentrations are injurious to health and should be exhausted to the atmosphere or trapped in water and neutralized with a 10 % (rn/rn) solution of sodium hydroxide or sodium hydrogen carbonate. The maximum concentration in a work area should not exceed 9,57 mg/rn3.
4.6 Urea after treatment
The use of this treatment is optional.
Experience has shown that colour change after removal of test specimens from the exposure chamber
is negligible. The urea treatment itself will often cause a colour change in test specimens. Therefore, if
1) Test-control fabric dyed with Disperse Violet 1 is commercially available from Testfabrics, Inc. This information is given for the convenience of users of this document and does not constitute an endorsement by ISO this product.
2) Test-control fabric dyed with I)isperse Blue 56 is commercially available from the Japanese Standards Association.. This information is given for the convenience of users of this document and does not constitute an endorsement by ISO this product.
3) The standard fading fabric is commercially available from Testfabrics, Inc. This information is given for the convenience of users of this document and does not constitute an endorsement by ISO this product.ISO 105-G04-2016 pdf free download.