【国外标准】 Standard Specification for VM&P Naphthas

This specification covers four types of moderately volatile hydrocarbon solvents that are mainly aliphatic in composition and normally petroleum distillates, and are commonly referred to as VM&P naphthas used primarily by the coatings industry. Materials shall be available in the following types: Type I, regular; Type II, high flash; Type III, odorless; and Type IV, low aromatics. Specimens shall undergo tests that shall examine their conformance with specified values of the following physical and chemical properties: appearance; bromine number; color (Pt-Co units); aromatics; copper corrosion; distillation (initial boiling point, 50 % recovered, and dry point); flash point; Kauri-butanol value; odor; and apparent specific gravity.1.1 This specification covers four types of moderately volatile hydrocarbon solvents, mainly aliphatic in composition and normally petroleum distillates. These solvents are used primarily by the coatings industry and are commonly referred to as VM&P naphthas.1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.3 The following applies to all specified limits in this standard; for purposes of determining conformance with this standard, an observed value or a calculated value shall be rounded-off “to the nearest unit” in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29.1.4 For specific hazard information and guidance, see the supplier's Material Safety Data Sheet for materials listed in this specification.1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.