Alkali leach resistance, parallelism, cleanliness, defects and surface and edge quality of range of slides for use in microscopy in the visible spectral range.Cross References:ISO 468:1982ISO 1101:1983ISO 1302:1992ISO 4287-2:1984ISO 9000ISO 9001:1994ISO 9002:1994ISO 9003:1994ISO 9180:1988ANSI/ASME B46-1ISO 2859-1:1989ISO 4287-1:1984ISO 8037-1:1986ISO 11455:1995