"HG/T 2245-2012 Nitro Pencil Paint" stipulates the classification, requirements, test methods, inspection rules, signs, Encasement and storage of nitro pencil paint. The standard applies to nitro pencil paint made of nitrocellulose and Miscellaneous synthetic resin as the main film formation substances, mainly used for surface protection and decoration of wooden pencil holders. The test methods required by the standard include the determination of non-volatile-matter content of the paint film, drying time, heat resistance, outflow time, paint film thickness and other indicators to ensure that the product mass meets the requirements. When using this standard, reference documents, including GB/T 1725-2007, GB/T 1728-1979 (1989), GB/T 1735-2009 and other national standards, are required to ensure the accuracy and Reliability of testing and evaluation.