International Organization for Standardization (ISO)
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ISO 2049:1996
Scope
This International Standard specifies a method for the visual determination of the colour of a variety of petroleum products, such as lubricating oils, heating fuels, diesel fuels and petroleum waxes. It is limited to products that do not contain artificial dyes.
ISO 2049:1996 history
1996ISO 2049:1996 Petroleum products - Determination of colour (ASTM scale)
1972ISO 2049:1972 Petroleum products; Determination of colour