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Cancels and replaces the first edition (1989). Lays down a method of chemically determining free formaldehyde in phenolic resins by potentiometric titration, in aqueous or organic solution. The method is applicable to resins with free-formaldehyde contents up to and including 15 % (m/m). For free-formaldehyde contents between 15 % (m/m) and 30 % (m/m), it may be necessary to adjust the…

Cancels and replaces the first edition (1989). Specifies two methods for the determination of the hexamethylenetetramine ("hexa") content of phenolic resins. They are equivalent. The Kjeldahl method is not applicable if there are other components containing nitrogen in the phenolic resin. The perchloric acid method is only applicable if there are no other basic or acidic additives in…

Specifies requirements for the electroacoustical performance of systems of instruments used to measure sound for the purposes of aeroplane noise certification, and recommends methods by which tests may be made periodically to verify that the performance continues to comply with the requirements given within stated tolerances. The requirements apply to the instruments used to measure the sound…

Specifies procedures for the preparation of water and acid extracts of air-dried soils and soil-like materials. The sulfate content of these extracts is determined by a gravimetric method in which barium chloride is added to the water or acid extract and the precipitate of barium sulfate is dried and weighed. The sulfate content is then calculated from the mass of the material used in the…

Cancels and replaces the first edition (1982). Specifies a method for the determination of the long polystyrene block content of raw uncompounded styrene-butadiene rubber (SBR) and raw uncompounded blends of block SBR. Not applicable to blends of block SBR with EPDM, IIR, CSM and other halogenated rubbers. The method is suitable for rubbers having block polystyrene contents in the range from 5…

Cancels and replaces the first edition (1986). Specifies a photometric method for the determination of trace amounts of copper in raw rubber, latices and compounded rubber, both natural and synthetic. May be applied to rubbers containing silica, provided that treatment with hydrofluoric acid is included in the procedure. The method is sensitive down to 1 mg/kg copper.

1. SCOPE 1.1 This method is intended for the semi-quantitative (i.e.±25%) determination of ethyl mercaptan odourant (within the range of 5 to 85 mg/L) in liquid propane. It is important to confirm that recently stenched propane is odourized to the required level. The method is intended for field application and may be suitable for use by non-…

1. SCOPE 1.1 This method is used to determine the lead content of gasolines. Lead in the range of 1.0 to 1100 mg/L can be measured. 1.2 The testing and evaluation of a product against this method may require the use of materials and/or equipment that could be hazardous. This document does not purport to address all the safety aspects associated…

1. PURPOSE AND SCOPE 1.1 This method is intended for the removal and quantitative determination of certain types of non-fibrous materials that may be present on textiles. Reference should also be made to CAN/CGSB-4.2 Nos. 40 and 42. 1.2 Owing to the wide variety of substances that may be added to textile materials during manufacture, and to the…

Gives a method of test which provides a standard procedure to determine the ability of components, equipment and other articles to withstand specified severities of sinusoidal vibration. Has the status of a basic safety publication in accordance with IEC Guide 104. The contents of the corrigendum of March 1995 have been included in this copy.