Adoption, without amendment, of Section 156, pp 330-336 of "Standard Methods for the Examination of Water and Wastewater" - 13th Edition 1971, prepared and published jointly by - American Public Health Association; american Water Works Association; Water Pollution Control Federation (USA).
Information processing - Data interchange on 6.30 mm magnetic tape cartridge using GCR recording at 394 ftpmm, 39 cpmm - Mechanical, physical and magnetic properties
