Electrical engineering; basic environmental testing procedures; test Db and guidance: damp heat, cyclic (12 + 12-hour cycle); identical with IEC 60068-2-30, edition 1980 (status as of 1985)
Harmonized system of quality assessment for electronic components; family specification: digital integrated TTL-Low Power Schottky circuits; series 54 LS, 64 LS, 74 LS, 84 LS