Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use — Methods of tes...
Specifies a method for the comparison of the colour of a test portion against the colour of colorimetric standard colour matching solutions. The colour of cresols present in the test portion is liable to darken on keeping and on exposure to ligth. ISO 1897/7 replaces ISO Recommendation R 1909-1971.
Embossed Credit Cards - Specifications, Numbering System and Registration
Procedure
This standard for embossed credit cards defines the physical
specifications of the card, type fonts, location and dimensions
of the embossed data and an account numbering system. It further
specifies the procedure by which card issuer identifiers shall be
registered and promulgated for the information and use of all
concerned.
1. SCOPE
1.1 This Standard covers the requirements for the safe installation,
operation and maintenance of woodworking machinery, including cooperage
and veneering operations and the finishing of wood products.
1.2 This Standard does not apply to logging and primary milling operations.
Continuous mechanical handling equipment — Safety code for conveyors and elevators with chain-elemen...
The aim is to give examples for the guarding of nip points between the chains and the sprocket wheels or caterpillar drives for all conveyors and elevators using chains as transporting elements. Describes different safety devices. Supplements the various International Standards dealing with safety of continuous mechanical handling equipment.
This Guide establishes certain basic principles for the functioning of a system of product information. It concerns those cases where the information is based in general on standards approved or recognized by ISO, IEC or the national standards body, and is one of a series dealing with various aspects of consumer information, including comparative testing and marks of conformity with standards.
Acetic anhydride and butan-1-ol for industrial use — Determination of bromine number
The principle consists in treatment of a test portion in acid solution with excess standard volumetric potassium bromide-potassium bromate solution, addition of potassium iodide solution and titration of the liberated iodine with a standard volumetric solution of sodium thiosulphate. - Replaces ISO Recommendation R 761-1968.
Sodium hexafluorosilicate for industrial use — Determination of free acidity and total hexafluorosil...
With respect to the free acidity, applicable to products having contents, expressed as H2 SiF6 , equal to or more than 0,1 % (m/m). First, determination of the free acid contents by titration of an ice-cooled test portion with a standard volumetric sodium hydroxide solution in the presence of potassium nitrate and using bromothymol blue as indicator, then, followed by titration at near boiling…
