ASTM D83-84(R2020) pdf free download

ASTM D83-84(R2020) pdf free download.Standard Specification for Red Lead Pigment
1. Scope
1.1 This specification covers four grades of red pigment commercially known as red lead. The pigment may be pur- chased in the dry form or as a paste in oil. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 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.
2. Referenced Documents
2.1 ASTM Standards: 2 D49 Test Methods of Chemical Analysis of Red Lead D185 Test Methods for Coarse Particles in Pigments D1208 Test Methods for Common Properties of Certain Pigments
3. Composition and Properties
3.1 Dry Pigment—The pigment shall be made by roasting litharge or metallic lead, or compounds of lead that yield litharge by heating, and shall consist entirely of oxides of lead, free of adulterants. The four grades of pigment shall conform to the following requirements.When mixed as indicated in the following table, the resulting paint, brushed on a smooth vertical iron surface, shall dry hard and elastic without running, streaking, or sagging.3.2 Paste in Oil—The paste shall be made by thoroughly grinding the specified pigment with linseed oil (Note 1). The paste as shipped by the seller, and for three months thereafter, shall not be caked in the container, and shall break up readily in oil to form a smooth paint ofbrushing consistency. The paste shall conform to the following requirements.When mixed as indicated in the following table, the resulting paint, brushed on a smooth, vertical iron surface, shall dry hard and elastic without running, streaking, or sagging.N OTE 1—The storage of paste red lead in places of high temperature should be avoided, as heat accelerates the tendency ofthis material to cake or harden. Purchasers are cautioned that 85 % grade red lead should not be bought in paste form. The 95 % grade, if made into paste, should be used within a short period of time after grinding. When pure red lead paste is to be stored for a considerable period of time, the 97 % or 98 % grade of red lead should be specified. Therefore the manufacturer shall identify the grade of red lead used in the paste and the date of manufacture.
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 10 000 lb (5000 kg), 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 production unit to form a composite sample.
5. Test Methods
5.1 Tests shall be conducted in accordance with the follow- ingASTM test methods. Test procedures not covered byASTM test methods shall be mutually agreed upon between the purchaser and the seller. 5.1.1 Chemical Analysis—Test Methods D49. 5.1.2 Coarse Particles—Test Methods D185. 5.1.3 Pigment, Linseed Oil, andMoisture andOtherVolatile Matter in Paste in Oil—Test Methods D1208.
6. Keywords
6.1 lead oxide; lead tetra oxide; pigment; red lead