Method DIN 53160-2:2010-10 specifies an artificial perspiration solution that is used to determine the colorfastness of articles for common use. This test establishes whether coloring on materials can migrate from the daily use articles to the skin. The test method is applicable to all articles of daily use, independent of the coloring procedure applied (dyeing, staining or coating). Method BS EN 1811:2011 is used for the testing of nickel release from jewelries and other products that come with prolonged contact with skin. The primary perspiration components and pH described by methods BS EN 1811:2011 and DIN 53160-2:2010-10 are the same, now Pickering Laboratories is offering a buffered version of the original formulations. Phosphate ions do not affect color migration rates nor the rate of nickel release, so these modified formulations can be used for the same tests. The buffered formulation is offered at pH 6.5, specified by DIN 53160 and BS EN 1811:2011 methods, as well as at custom pH by customer request. Stabilized formulations contain a preservative to prevent bacteria growth and can be stored at room temperature.

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