瑞典NCS色卡完整版(NCS-Colour-Chart).pdf
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1、colour chartColour chart“We shape our buildings, and afterwards our buildings shape us”Winston ChurchillNCS Edition 2 (S)NCS Edition 2 is always presented with an S in front of the notation. The S means second edition. NCS (Natural Colour System) is a system with the help of which all conceivable su
2、rface colour can be described. The system is illustrated by a colour atlas containing 1950 colour samples. NCS is a Swedish, Norwegian, Spanish and South African standard and is one of the most widely used colour-describing systems in the world.The variables in the NCS notation are built entirely on
3、 visually observa-ble properties of the colours. NCS can also be illustrated graphically in a geometrical model as shown below.In the notation for a red colour S 1050-Y90R the fi rst two digits indi-cate the percentage of visual blackness in the colour. The next two digits indicate the colours visua
4、l chromaticness. They can together be maximum 100%. In the example 1050 is the rest 40% pure white. The letter-number combination after the hyphen indicates the colours hue, i.e. which chromatic attributes are included and the proportion between these. In this case, it is a yellow hue with 90% redne
5、ss. The blackness and chromaticness are given in an equilateral triangle and the hue on a circle. A point in the triangle and a line on the circumference of the circle provide an unequivocal description of a colour. The red colour S 1050-Y90R is marked in the triangle and in the circle above.NCS Edi
6、tion 1All colour samples based on NCS edition 2 have an S in front of the NCS notation (S stands for Second edition). The older Edition 1 did not include the S. Otherwise the notation system have exactly the same function in NCS Edition 1 as in NCS Edition 2. The colour samples are not exactly the s
7、ame between NCS Edition 1 and 2. In Edition 1 there was 1535 different standard colours.RALThe RAL colours are a semioffi cial German collection of 210 dif-ferent colour samples (K7), which are used primarily as colour standards in the German industry. The RAL colours are available in a colour regis
8、ter with matt gloss or glossy colour samples and in small overview colour cards. The RAL colours are a number of non-systematically chosen colour samples which are divided into nine colour groups: yellow, orange, red, violet, blue, green, grey, brown and white/aluminium/black. In the four-digit RAL
9、notation, the fi rst digit indicates to which of the nine colour groups the colour belongs. The remaining digits are merely a serial number, which indicates nothing but about the appearance of the colour.NCS exact valueAny surface can be measured and the exact NCS colour notation can be calculated f
10、or the surface. This value can then look like this: 1342-B27G. There are no standard sample available for this notation but normally a producer also gives the closest NCS standard notation (in edition 1 or 2).Information about NCS and RALLindab recommendsWhen matching colours with other painted surf
11、acesOne should defi ne the colour based upon these alternatives:1. Piece of sheet metal from actual delivery.2. Sample of sheet metal from Lindab.3. Nearest NCS. This can however result in some degree of deviation compared with the actual delivery.Make a test by painting a small surface to see if th
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