ASTM D85-05(R2019) pdf free download

ASTM D85-05(R2019) pdf free download.Standard Specification for Ochre Pigment
1. Scope
1.1 This specification covers ferrous earthy pigment in- cluded under the general term “ochre.” The pigment may be purchased in the dry form. 1.2 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
3. Composition and Properties
3.1 The pigment shall be a hydrated oxide of iron permeat- ing a siliceous base and shall be free from added impurities and added coloring matter. The pigment shall conform to the following requirements:3.2 The mass color and character of the tint and the tinting strength formed by a mixture with a white pigment shall be within mutually agreed upon limits of a standard acceptable to both the purchaser and the seller.
4. Sampling
4.1 Two samples shall be taken at random from different packages from each lot, batch, day’s pack, or other unit of production in a shipment. When no markings distinguishing between units of production appear, samples shall be taken from different packages in the ratio of two samples for each 5 tons (inch-pound or SI), except that for shipments of less than 10 000 lb two samples shall be taken. At the option of the purchaser, the samples may be tested separately or after blending in equal quantities the samples from the same production unit to form a composite sample.
5. Test Methods
5.1 Tests shall be conducted in accordance with the appro- priate ASTM test methods. Test procedures not covered by ASTM methods shall be mutually agreed upon between the purchaser and the seller. 5.2 Chemical Analysis ofDry Pigment—Test Methods D50. 5.3 Coarse Particles—Test Methods D185. 5.4 Mass Color and Tinting Strength—Test Method D387. 5.5 Volatile Matter—Test Methods D1208. 5.6 Moisture—Test Methods D280, Method A.
6. Keywords
6.1 ferrous; hydrated iron oxide; ochre; pigmen