Standard No.:	GB 11186.2-1989
English Name:	for measuring the colour of paint films - Part 2: Colour measurement
Chinese Name:	漆膜颜色的测量方法 第二部分: 颜色测量
Chinese Classification:	G50    Basic standard and general method for coating
Professional Classification:	GB    National Standard
Issued by:	AQSIQ
Issued on:	1989-3-1
Implemented on:	1990-1-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	2000 words
Price(USD):	80.0
Delivery:	via email in 1 business day

1 Scope and field of application This standard describes the method for determining the colour co-ordinates of paint films. The method is only applicable to determining the colour of reflected light, i.e., paint films that appear to be uniformly of one colour, i.e. monochromatic, when examined with normal vision. Paint films that do not completely hide a non-transparent substrate represent an opaque system and may be measured by using the procedure described in this standard. Luminescent paint films, transparent paint films and translucent paint films (for example for displays or lamp glass), retroreflecting paint films (for example for traffic signs), and metallic paint films are outside the scope of this standard. 2 Normative references GB 1727 General preparation of paint film GB 1764 Methods of test for measurement of dry film thickness of paints GB 3186 Sampling paint products GB 3977 Methods of colour specification GB 3978 Standard illuminants and illuminating-viewing conditions GB 3979 Methods of measuring the colour of materials GB 9271 Paints and varnishes - Standard panels for testing GB 9278 Temperatures and humidities for conditioning and testing of paint specimens GB 11186.1 Methods for measuring the colour of paint films - Part 1: Principles GB 11186.3 Methods for measuring the colour of paint films - Part 3: Calculation of colour differences 3 Principle

1 Scope and field of application 2 Normative references 3 Principle 4 Choice of illumination and viewing conditions 5 Choice of standard colorimetric observer and standard illuminant 6 Apparatus 7 Sampling and preparation of test specimens 8 Reflectance standards 9 Procedure 10 Test report