ISO 11426 pdf download Jewellery — Determination of gold in gold jewellery alloys — Cupellation method (fire assay) Scope This International Standard specifies a cupellation method (fire assay) for the determination of gold ingold jewellery alloys. The gold content of the alloys should preferably lie between 333 and 999 parts perthousand (%o). The procedure is applicable specifically to gold alloys...
ISO 11540 pdf download Writing and marking instruments — Specification for caps to reduce the risk of asphyxiation 1 Scope This International Standard specifies requirements to reduce the risk of asphyxiation from capsfor writing and marking instruments. lt relates to such instruments which in normal or foreseeablecircumstances are likely to be used by children up to the age of 14...
ISO 11620 pdf download Information and documentation — Library performance indicators This International Standard is applicable to all types of libraries in all countries. However, not all performance indicators apply to all libraries. Limitations on the applicability of individual performance indicators are listed in the scope clause of the description of each indicator (see Annex B). Performance indicators can be...
ISO 12715 pdf download Non-destructive testing — Ultrasonic testing — Reference blocks and test procedures for the characterization of contact probe sound beams 1 Scope This International Standard introduces two metal reference blocks, the hemicylindrical-stepped (HS) block and the side-drilled-hole (SDH) block. This International Standard establishes procedures for measuring the sound beam profiles generated by probes in contact with the...
ISO 12912 pdf download Circular knitting machines — Vocabulary 1 Scope This International Standard establishes a vocabulary of terms and a system of classification for circular knitting machines used in the textile industry for the production of weft-knitted fabrics. NOTE See also the ISO online browsing platform (OBP): https://www.iso.org/obp/ui/ 2 Terms and definitions 2.1 Terms for circular knitting machines 2.1.1...
ISO 13085 pdf download Petroleum and natural gas industries — Aluminium alloy pipe for use as tubing for wells 1 Scope This International Standard specifies the technical delivery condition, manufacturing process, material requirements, configuration and dimensions, and verification and inspection procedures for aluminium alloy pipes for use as tubing for wells in petroleum and natural gas industries. 2 Normative references...
ISO 13106 pdf download Plastics — Blow-moulded polypropylene containers for packaging of liquid foodstuffs 1 Scope This International Standard provides the requirements ofpolypropylene resins intended for use in blow-moulded, round containers with capacities up to, and including two litres intended for the packagingof liquids for human consumption. This International Standard also provides tolerances on mass,dimensions, methods of sampling, testing, and...
ISO 13820 pdf download Paper, board and corrugated fibreboard — Description and calibration of compression-testing equipment 1 Scope This International Standard specifies the essential characteristics and the principles of calibration of compression testing equipment used in the testing of paper, board, and corrugated fibreboard. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its...
ISO 14244 pdf download Oilseed meals — Determination of soluble proteins in potassium hydroxide solution Scope This International Standard specifies a method for the determination of soluble proteins in potassiumhydroxide solution in soya meals, rapeseed meals and sunflower pellets, which are then assayed usingthe Kjeldahl method as specified in ISO 5983-1 and ISO 5983-2. 2 Normative references The following documents,in...
ISO 14594 pdf download Microbeam analysis — Electron probe microanalysis — Guidelines for the determination of experimental parameters for wavelength dispersive spectroscopy 5.3.5 Peak location (wavelength) Under normal circumstances, the wavelength which has the maximum peak intensity is used to define the location of an X-ray peak. It is necessary, using suitable reference materials, to periodically check and correct for...