Urea for industrial use — Determination of the buffer coefficient — Potentiometric method
Applicable to solutions of conventional concentration. The principle consists in measurement, at (20 0.5) 0C, of the quantity of 0.05 N acid solution required to effect a pH change from 8 to 6 for a solution containing 100 g of urea in 1000 ml of solution. For the measurement a pH meter is used fitted with a glass electrode and a calomel electrode. The method has also been approved by the IUPAC.
Urea for industrial use — Measurement of the pH of a solution of urea of conventional concentration ...
Describes the measurement of a solution of a test sample by means of a pH meter fitted with one glass electrode and one calomel electrode. The pH meter has a sensitivity of 0.05 pH units. The calibration of the pH meter is carried out at (20 0.5) 0C by means of buffer solutions. The method has also been approved by the IUPAC.
Crude glycerine for industrial use — Calculation of Matter (Organic) Non-Glycerol (MONG)
This determination is preferred to that of the non-volatile organic residue, which is more lengthy and leads to less reproducible results. The matter represents, by convention, the difference obtained by subtracting from 100 th sum of the contents of glyceral, ash and water. The determination of the glyceraol content, determination of ash and the determination of water are carried out by…
Potassium sulphate for industrial use — Determination of loss of mass at 105 degrees C
Drying of a test portion in an electric oven controlled at (105 +/- 2) 0C for 1 h. Weighing and calculation of the difference of mass. Has also been approved by the IUPAC.
Textiles — Standard atmospheres for conditioning and testing
The conditions of temperature and relative humidity for pre-conditioning, conditioning, and testing of textile materials of all kinds and in all forms are specified. A standard temperate atmosphere, a standard temperate atmosphere for testing, a standard tropical atmosphere, and a standard tropical atmosphere for testing are defined. (The adjectives "temperate" and "tropical"…
Defines terms relating to ropes and cordage. These terms are, in particular, for use in the drafting of other International Standards dealing with specification or testing of ropes. General terminology for the textile industry and terms defining specific ropes for the fishing industry, for agriculture, for marine use, etc. are not covered by this document. - Replaces ISO Recommendation R 1968-…
Potassium hydroxide for industrial use — Determination of carbon dioxide content — Titrimetric metho...
Applicable to products having CO2 contents of more than 0.01 % (m/m). Three cases are envisaged. The product containing neither sulphides nor chlorates or containing sulphides or chlorates. The principle in presence of neither sulphides nor chlorates consists in liberation of carbon dioxide in a flow of gas and absorption in an excess of standard volumetric barium hydroxide solution. Titration of…
Liquid halogenated hydrocarbons for industrial use — Sampling
These methods are applicable to products not contaminated by an axtraneous phase (for example, water). Accidental pollution is also considered. Three cases are considered: small containers, large containers and continuous sampling. The procedure consists in formation of a blended bulk sample, representing the whole of the batch, by mixing several samples. The number and the method of taking of…
Industrial and Commercial Gas Fired Conversion Burners
This is a text searchable PDF.
1.1 Scope
1.1.1 These requirements apply to natural and propane gas-fired conversion burners designed and constructed primarily for the purpose of converting heating and process equipment from the use of other fuels to gas firing and/or firing new heating or process equipment.
1.1.2 Section 2, Part A of these requirements apply to conversion…
