8213 International Standard OS Chemical products for industrial use -- Sampling techniques - Solid chemical products in the form of particles varying from powders to coarse lumps Produits chimiques a usage industriel -- Techniques de I'echantillonnage -- Produits chimiques solides de petite granulometrie et agglomerats grossiers First edition -- 1986-07-15 UDC 661 : 62-492 : 620.11 Ref. No. ISO 8213-1986 (E) Descriptors : industrial products, chemical compounds, granular materiats, samping. samping equipment. Price based on 31 pages Copyright Internationalorganizationfor Standardization ed without license from IHS Not for Resale Foreword iso (the Internationat Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies). The work of preparing international Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, govern- mental and non-governmental, in liaison with IsO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISo Council. They are approved in accordance with ISO procedures requiring at least 75 % approval by the member bodies voting. International Standard ISO 8213 was prepared by Technical Committee ISO/TC 47, Chemistry. Users should note that all International Standards undergo revision from time to time and that any reference made herein to any other International Standard implies its latest edition, uniless otherwise stated. International Organization for Standardization, 1986 Printed in Switzerland Copyright International Organization for Standardization /IHS und Not for Resale ted without license from IHS INTERNATIONALSTANDARD ISO 8213-1986 (E) Sampling Chemical products for industrial use technigues Solid chemical products in the form of particles varying from powders to coarse lumps Scope and field of application Mixing of the increments to form either a bulk sample or several primary samples, depending on the purpose of the sampling. This International Standard describes the general techniques of taking and preparing samples with a view to the assessment of Preparation by means of replicate reductions, from the bulk a solid chemical product lot, for use in conjunction with a sample or from each primary sample, of a reduced sample, then previously established sampling plan (as described, for exam- of several iaboratory samples, each stage of the division being ple, in ISO 6063 or ISO 6064). preceded in each case by biending and, if necessary, by grind- ing and sieving of the product. This International Standard is applicable to solid chemical prod- ucts, in particulate form, ranging from powders to coarse lumps with a maximum size of 100 mm, and consigned in con- tainers (of, for example, 25, 50 or 100 kg) or in bulk. 4 Apparatus Massive pieces and solids in a plastic are not dealt with in this All the apparatus described below GENERAL REMARK - International Standard. must be made of materials inert to the product to be sampied. NOTE - This International Standard should be used in conjunction Moreover, apparatus must cause no contamination, segrega- tion or loss of product. with the vocabulary, given in ISO 6206. References 4.1 Apparatus for sampling and constitution of samples ISo 565, Test sieves - Woven metal wire cloth and perforated plate - Nominal sizes of apertures. It is essential that sampling apparatus exhibits only a small systematic error. Iso 607, Surface active agents and detergents -- Methods of sample division. Four main types of apparatus can be used, according to cir- cumstances : ISO 2591, Test sieving. Iso 3165, Sampling of chemical products for industrial use - 4.1.1 Scoop sampler Safety in sampling. A s