American standard AATCC16/ISO105 B02 standard fabric for light fastness, blue wool standard l2-l9.

Standard fabric for light fastness, blue wool fabric, standard BS1006 ISO 105 AATCC 16.

Currently, there are only two Numbers:

（1）AATCC BLUE WOOL L2, size: 50*75CM.

（2）AATCC BLUE WOOL L4, size: 50*75CM.

In GB/T 8427-2008 and ISO 105 B02: 1994, the blue wool standard samples 1-8 and l2-l9 are described in detail. Their composition is wool, and there are 8 levels of blue marks, and the light fastness of each higher numbered blue mark is about twice that of the previous number.

However, they use different dyes and production processes. The blue label 1-8 is respectively dyed with 8 dyes of different light fastness, which is suitable for European exposure conditions specified in GB/ t8427-2008 and ISO 105 B02: 1994.

L2-l9 is used to dye the raw fiber with two dyes, and then the two dyed fibers are made into blue label l2-l9 by different proportions, applicable to GB/T 8427-2008 and ISO 105 B02: 1994, and applicable to AATCC TM 16.

The blue marks 1-8 and l2-l9 cannot be mixed, and test results cannot be exchanged.

L2 - L9 blue wool is produced by the United States, the number is 2-9, digital note before the letter L, the eight standard blue wool is acid complex media with poor fastness of blue dye B (C.I. 43830) dyeing of wool and dye fastness good Indian families element AGG (C.I. 73801) dyeing of wool mixed in different proportion and become, each higher Numbers of blue wool standard of color fastness to light about the previous number twice as high.

UV Light Accelerated Weathering Tester can test about Application of blue woolen cloth in Sun aging test,meets American standard,light fastness.

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