1 Scope
This standard is one of a series of standards dealing with the sampling and testing of paints, varnishes and related products.
This standard specifies a method for the determination of the volatile organic compound (VOC) content of paints, varnishes and their raw materials. This part may be used where the expected VOC content is greater than 15 % by mass. When the expected VOC content is greater than 0.1% by mass and less than 15 % by mass, GB/T 23986 should be employed.
This method assumes that the volatile matter is either water or organic. However, other volatile inorganic compounds can be present and might need to be quantified by another suitable method and allowed for in the calculations.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to (excluding amending errors in the text), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of the normative document is applicable. For undated references, the latest edition of the normative document applies.
GB/T 3186 Paints, Varnishes and Raw Materials for Paints and Varnishes - Sampling (GB/T 3186-2006，ISO 15528:2000，IDT)
GB/T 6283 Chemical Products - Determination of Water - Karl·Fischer Method (General Method) [GB/T 6283-1986, eqv ISO 760:1978, Determination of Water - Karl Fisher Method (General Method)]
GB/T 6750 Paints and Varnishes - Determination of Density - Pyknometer Method (GB/T 6750-2007, ISO 2811-1:1997, Paints and Varnishes - Determination of Density - Part 1:Pyknometer Method, IDT)
GB/T 9278 Temperatures and Humidities for Conditioning and Testing of Paint Specimens (GB/T 9278-2008, ISO 3270:1984, Paints and Varnishes and Their Raw Materials - Temperatures and Humidities for Conditioning and Testing, IDT)
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Principle
5 Required Supplementary Information
6 Sampling
7 Procedure
8 Calculation
9 Expression of Results
10 Precision
11 Test Report
Annex A (Normative) Required Supplementary Information
Bibliography
Annex A (Normative) Required Supplementary Information
Annex B (Informative) Examples of Gas-chromatographic Conditions
Bibliography
