Blue Wools & Humidity Test Materials

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SDCE Blue Wools & Humidity Test Materials Product Codes:

2821: Blue Wool number 1

2822: Blue Wool number 2

2823: Blue Wool number 3

2824: Blue Wool number 4

2825: Blue Wool number 5

2826: Blue Wool number 6

2827: Blue Wool number 7

2828: Blue Wool number 8

2839: Blue Wool Pre-mounted 1-8

3605: Humidity Control Fabric 1 pattern 25x15cm

Descriptions

SDCE Light Fastness Standards 1 to 8 each pattern 15x25cm

These are a series of 8 wool fabrics dyed with specified blue dyes to give blue wool cloths ranging from very low light fastness to very high light fastness. This forms a numerical scale of 1 to 8 where 1 has the poorest light fastness, to 8 which has the best light fastness. This allows fabrics to be graded, using a Grey Scale for Change in Colour, for correlation with performance in use. This is used to predict the suitability for a given end use; typically apparel would be a minimum of grade 4 whilst furnishings would require a grade 6. They are used in the ISO 105 B series of tests and can be used in conjunction with the Humidity Control fabric for machine calibration.

To complement the range of Blue Wool Standards we also supply specially prepared mounted card that is totally free of any optical brightening agents. This ensures mounted samples are easier to grade as the card does not show a significant Colour change. It is widely recognised that the Colour of the background can influence how an item is finally graded.

SDCE Humidity Control Fabric

This is an azoic dyed cotton fabric with specified fading properties, which varies with the amount of relative humidity.

It is used as a calibration tool for light fastness testing. When the humidity of the light fastness testing machine is correctly set it will fade at an identical rate to the light fastness standard Number 5. It is supplied with a printed instruction sheet for its use to determine the correct settings for the relevant ISO 105 B series test method.

Testing Categories: Colour Fastness

SDCE Blue Wools & Humidity Test Materials Product Codes:

2821: Blue Wool number 1

2822: Blue Wool number 2

2823: Blue Wool number 3

2824: Blue Wool number 4

2825: Blue Wool number 5

2826: Blue Wool number 6

2827: Blue Wool number 7

2828: Blue Wool number 8

2839: Blue Wool Pre-mounted 1-8

3605: Humidity Control Fabric 1 pattern 25x15cm

Descriptions

SDCE Light Fastness Standards 1 to 8 each pattern 15x25cm

These are a series of 8 wool fabrics dyed with specified blue dyes to give blue wool cloths ranging from very low light fastness to very high light fastness. This forms a numerical scale of 1 to 8 where 1 has the poorest light fastness, to 8 which has the best light fastness. This allows fabrics to be graded, using a Grey Scale for Change in Colour, for correlation with performance in use. This is used to predict the suitability for a given end use; typically apparel would be a minimum of grade 4 whilst furnishings would require a grade 6. They are used in the ISO 105 B series of tests and can be used in conjunction with the Humidity Control fabric for machine calibration.

To complement the range of Blue Wool Standards we also supply specially prepared mounted card that is totally free of any optical brightening agents. This ensures mounted samples are easier to grade as the card does not show a significant Colour change. It is widely recognised that the Colour of the background can influence how an item is finally graded.

SDCE Humidity Control Fabric

This is an azoic dyed cotton fabric with specified fading properties, which varies with the amount of relative humidity.

It is used as a calibration tool for light fastness testing. When the humidity of the light fastness testing machine is correctly set it will fade at an identical rate to the light fastness standard Number 5. It is supplied with a printed instruction sheet for its use to determine the correct settings for the relevant ISO 105 B series test method.

Testing Categories: Colour Fastness

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