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VARNISH & UV OIL STAINING RESISTANCE ASTM D 3023 98 (Reapproved 2003) (adapted)

1.1 Boiling distilled water.
1.2 Ethyl Alcohol (50% by weight)
1.3 Perchloroethylene
1.4 Amyl Acetate
1.5 Acetic Acid (3 N): dilute 172 ml of 99% acetic acid to 1 L
1.6 Grape Juice (unsweetened)
1.7 Lactic Acid (5%)
1.8 Unscented Mild Soap (saturated solution)
1.9 Trisodium Phosphate (saturated solution)
1.10 Urea (6.6% solution)
1.11 Permanent ink
1.12 Soluble coffee with synthetic sweetener in distilled water at 82 degrees Celsius
1.13 Wax Crayons (red, blue and yellow)
1.14 Lipstick
1.15 Liquid Shoe Polish
1.16 Corn Oil
1.17 Mustard
1.18 Sodium Hypochlorite (6% solution)
1.19 Tincture of Iodine

1*400x100xthickness mm or another suitable size big enough to place the reagents

The sample should be stabilized for 24 hours in an environment at:

Temperature: 23 (+/- 2) °C
Relative humidity: 50 (+/-) 5%
The test should be performed in the same environment

4.1 Clean the sample surface
4.2 Place 0.5 ml (0.017 oz) of each reagent on the sample surface and allow them to stand uncovered. Exceptionally, 1.2, 1.3 and 1.4, should be covered by a 25 mm (1 inch) square of double-acid-washed quantitative filter paper, in order to maintain a longer wet contact of volatile reagents with the surface of the finish)

4.3 Wait for 18 hours
4.4 Wash the surface with water, rinse with ethanol (1+1) or other reagent and dry with a paper towel

4.5 Place the sample in a vertical position with a diffuse light source and view from a distance of 0.6 to 0.9 m (2 to 3 ft)

4.6 Examine the surface for graying, spotting, wrinkling, discoloration, or other film defects


Per the contract (client should state the staining resistance required depending on the final use the wood flooring will be exposed to)

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