Standards World

UNI EN ISO 9612:2011 pdf free download - Acoustics . Determination of ocpational noise exposure - Engineering method. MEASUREMENTS Selection of instrumentation Measurements shall be performed using the following types of instrumentation (see also 5.1): a) personal...

ISO 20345:2011 pdf free download - Personal protective equipment一Safety footwear. 5.5.2 Abrasion resistance When tested in accordance with IsO 20344:2011, 6.12, the lining shall not develop any holes before the following number of cycles has been performed....

ISO 13855:2010 pdf free download - Safety of machinery一Positioning of safeguards with respect to the approach speeds of parts of the human body. That means, where the height of the detection zone is known or fixed, a...

ISO 15042:2011 pdf free download - Multiple split-system air-conditioners and air-to-air heat pumps一Testing and rating for performance. D.2 Calibrated room-type calorimeter D.2.1 Heat leakage may be determined in either the indoor-side or outdoor-side compartment by the following...

ISO 09698:2010 pdf free download - Water quality一Determination of tritium activity concentration - -Liquid scintillation counting method. B.2.2.3 Distillation equipment, consisting of the following. B.2.2.3.1 Distillation flask, with a capacity of 500 ml. B.2.2.3.2 Splash head. B.2.2.3.3...

ISO-8015:2011 pdf free download - Geometrical product specifications (GPS)一 Fundamentals一Concepts, principles and rules (ISO 8015:2011). 5.12 General specification principle General GPS specifications apply individually to each characteristic for each feature and to each characteristic for each relationship...

ISO 7743:2011 pdf free download - Rubber, vulcanized or thermoplastic一 Determination of compression stress- strain properties. C.1 Inspection Before any calibration is undertaken, the condition of the items to be calibrated shall be ascertained by inspection and...

ISO 3744:2010 pdf free download - Acoustics - - - Determination of sound power levels and sound energy levels of noise sources using sound pressure一 Engineering methods for an essentially free field over a reflecting plane. 6.6...

ISO-2575:2010 pdf free download - Road vehicles一Symbols for controls, indicators and tell-tales. 4 General 4.1 The symbols and signs shall be as given in Annexes A to N and Annex X. Additional symbols are given in Annexes...

ISO 225:2010 pdf free download - Fasteners - Bolts, screws, studs and nuts一Symbols and descriptions of dimensions. ISO 225 defines the symbols and gives descriptions of the dimensions of bolts, screws, studs and nuts for use in...