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Example of comparison of drinking water quality parameters with thresholds (standards) in Kenya and Ethiopia. The chosen thresholds are from the country's standards or WHO health guideline or East Africa Standard (EAS) for natural potable water.
ISO 11665-5:2012 Part 5: Continuous measurement method of the activity concentration; ISO 11665-6:2012 Part 6: Spot measurement method of the activity concentration; ISO 11665-7:2012 Part 7: Accumulation method for estimating surface exhalation rate; ISO 11665-8:2012 Part 8: Methodologies for initial and additional investigations in buildings
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ISO 21527 Microbiology of food and animal feeding stuffs – Horizontal method for the enumeration of yeasts and moulds ISO 21527-1:2008 Part 1: Colony count technique in products with water activity greater than 0,95; ISO 21527-2:2008 Part 2: Colony count technique in products with water activity less than or equal to 0,95
ISO 855:2003 Oil of lemon [Citrus limon (L.) Burm. f.], obtained by expression; ISO 856:2006 Oil of peppermint (Mentha x piperita L.) ISO 857 Welding and allied processes — Vocabulary ISO 857-2:2005 Part 2: Soldering and brazing processes and related terms; ISO 858:1973 Fishing nets — Designation of netting yarns in the Tex System
International standards can be applied directly or adapted to meet local conditions. When adopted, they lead to the creation of national standards that are either equivalent to or largely align with the international standards in technical content, though they may have: (i) editorial variations, such as differences in appearance, the use of symbols, measurement units, or the choice of a point ...
The thermochemical calorie is exactly 4.184 J by definition of the International Organization for Standardization (ISO). [4] The thermochemical Btu is calculated by converting from grams to pounds and from Celsius to Fahrenheit. [5] 59 °F (15.0 °C) ≈1,054.80 [6] Used for American natural gas pricing. [3] 60 °F (15.6 °C) ≈1,054.68 [7]
English: The PDF contains 296 symbols described in the standard ISO 10628-2:2012 titled "Diagrams for the chemical and petrochemical industry — Part 2: Graphical symbols". Symbols are grouped in the same way that the standard does.