Optics and optical instruments Laboratory procedures for testing surveying and construction instruments ISO 16331-1 Part 1: Performance of handheld laser distance meters/ UNIT - 2a.ed - Montevideo: UNIT, 2017 - 44p.: tab Subjects--Topical Terms: AGRIMENSURACONSTRUCCIÓNISO 16331-1--2017 Dewey Class. No.: ISO 16331-1