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BS EN ISO 28399:2021 pdf download - Dentistry – External tooth bleaching products. 5 Requirements 5.1 Concentration of active ingredients for bleaching The concentration of active ingredients for bleaching (equivalent to hydrogen peroxide) delivered by the unexpired...

BS EN ISO 20743:2021 pdf download - Textiles — Determination of antibacterial activity of textile products. 5.6 Clean bench, for microbial test. 5.7 Washing machine, in accordance with the specifications of ISO 6330. 5.8 Humidity chamber, tropical...

BS EN ISO 17962:2015 pdf download - Agricultural machinery — Equipment for sowing — Minimization of the en- vironmental effects of fan exhaust from pneumatic systems. 3 Requirements 3.1 General A means of minimizing the effects of...

BS EN ISO 16954:2015 pdf download - Dentistry — Test methods for dental unit waterline biofilm treatment. 7.2.2 Pretreatment of the test apparatuses All test apparatuses shall be pretreated according to the instructions of the manufacturer of...

BS EN ISO 13350:2015 pdf download - Fans — Performance testing of jet fans. 6.4 Input power Determination of the power input to the electric motor or to the impeller shall be carried out in accordance with...

BS EN ISO 12836:2015 pdf download - Dentistry — Digitizing devices for CAD/CAM systems for indirect dental restorations — Test methods for assessing accuracy. 3.15 systematic error mean that would result from an infinite number of measurements...

BS EN ISO 8407:2021 pdf download - Corrosion of metals and alloys — Removal of corrosion products from corrosion test specimens. 4.1.6 The true mass of the specimen, after removal of the corrosion products, will be a...

BS EN ISO 4823:2015 pdf download - Dentistry — Elastomeric impression materials (ISO 4823:2015). 6 Pre-test planning approaches The information in this Clause is provided to help test operators avoid losses of time due to trial and...

BS EN ISO 283:2015 pdf download - Textile conveyor belts — Full thickness tensile strength, elongation at break and elongation at the reference load — Test method. 1 Scope This International Standard specifies a test method for...