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ASTM F109-2018 pdf free download

ASTM F109-2018 pdf free download.Standard Terminology Relating to Surface Imperfections on Ceramics
1. Scope
1.1 This terminology describes and illustrates imperfections observed on whitewares and related products. For additional definitions of terms relating to whitewares and related products, refer to Terminology C242. To observe these defects, examination shall be performed visually, with or without the aid of a dye penetrant, as described in Test Method C949. Agreement by the manufacturer and the purchaser regarding specific techniques of observation is strongly recommended. 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.
2. Referenced Documents
2.1 ASTM Standards: 2 C242 Terminology of Ceramic Whitewares and Related Products C949 Test Method for Porosity in Vitreous Whitewares by Dye Penetration E165 Practice for Liquid Penetrant Examination for General Industry
3. Terminology
blemish—strained or discolored area attributable to normal composition or forming, or both. (See also inclusion.blister—bubble or gaseous inclusion at the surface which if broken could form a pit, pock, or hole.

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