Botswana Standards
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MATHEMATICS. NATURAL SCIENCES BOS ISO 710-1:1974 , Graphical symbols for use on detailed maps, plans and geological cross-sections - Part 1: General rules of representation BOS ISO 710-2:1974 , Graphical symbols for use on detailed maps, plans and geological cross-sections - Part 2: Representation of sedimentary rocks BOS ISO 710-3:1974 , Graphical symbols for use on detailed maps, plans and geological cross-sections - Part 3: Representation of magmatic rocks BOS ISO 710-4:1982 , Graphical symbols for use on detailed maps, plans and geological cross-sections - Part 4: Representation of metamorphic rocks BOS ISO 710-5:1989 , Graphical symbols for use on detailed maps, plans and geological cross-sections - Part 5: Representation of minerals BOS ISO 7251: 1993 , Microbiology - General guidance for enumeration of presumptive Esherichia coli - Most probable number technique BOS ISO 6222:1999 , Water quality - Enumeration of culturable micro-organisms - Colony count by inoculation in - nutrient agar culture medium BOS ISO 9308-3:1998 , Water quality - Determination and enumeration of Escherichian coli and coliform bacteria in surface and waste water - Part 3: Miniaturized method (Most Probable Number) by inoculation in liquid medium. BOS ISO 8199:1988 , Water quality - General guide to the enumeration of micro - organisms by culture. BOS ISO 9308-2:2000 , Water quality - Determination and enumeration of Escherichian coli and coliform bacteria - Part 2: Liquid enrichment method BOS ISO 9308-1:2000 , Water quality - Determination and enumeration of Escherichian coli and coliform bacteria - Part 1: Membrane filtration method BOS ISO 11866-1: 1997 , Milk and milk products - Enumeration of presumptive Escherichia coli - Part 1: Most probable number technique. BOS ISO 11866-2: 1997 , Milk and milk products - Enumeration of presumptive Escherichia coli - Part 2: Most probable number technique using 4-methylumbelliferyl- ß-D-glucuronide (MUG). BOS ISO 11866-3: 1997 , Milk and milk products - Enumeration of presumptive Escherichia coli - Part 3: Colony-count technique at 44 - C using membranes. BOS ISO 6579:1993 , Microbiology - General guidance on methods for the detection of salmonella BOS ISO 6610:1992 , Milk and milk products -- Enumeration of colony-forming units of micro-organisms -- Colony-count technique at 30 degrees C |
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