Volatile organic liquids for industrial use — Determination of dry residue after evaporation on wate...
The method of test is applicable to products having dry residues after evaporation greater than or equal to 10 mg/kg Ä0.001 % (m/m)Ü. The principle consists in evaporation of a test portion on a water bath, and drying the residue, if any, to a constant mass in an oven at 110 °C 2 K. - Cancels and replaces ISO Recommendation R 759-1968 of which it constitutes a technical revision.
General purpose industrial fans — Circular flanges — Dimensions
Specifies the dimensions of circular flanges for industrial fans. It does not apply to heavy duty types with greater flange thickness. It adopts the R 20 Series as per ISO 497.
Polyglycols for industrial use — Determination of hydroxyl number — Phthalic anhydride esterificatio...
The hydroxy groups present in a test portion are esterified with phthalic anhydride. The excess phthalic anhydrids is hydrolyzed and the phthalic acid formed is neutralized with standard volumetric sodium hydroxide solution. If the sample contains free acidity or alkalinity a corresponding correction is made. From the corrected hydroxyl number, the apparat relative molecular mass may be…
Light olefins for industrial use — Determination of traces of water — Karl Fischer method
Describes a method applicable to products having water contents between 10 and 100 mg/kg. Specifies the manner of applications of the Karl-Fischer method, whose principle and chemical reaction are given in ISO 760 which should also be used for higher water contents as sampling is not valid when there is a risk that condensation of water may occur. The principle consists in absorbing the traces of…
1. Scope
1.1 This standard applies to inner tubes for pneumatic tires used on
automobiles, trucks, motorcycles, agricultural, industrial and other
ground equipment.
