The ingots shall have a mass of 5 to 20 kg, shall be of a shape which permits stacking, may include notches which allow them to be broken up if necessary into small pieces and may include cast-on feet. The marking is specified. Designations and chemical compositions of ingots are given in a table.
Laboratory glassware — Flasks with conical ground joints
An international acceptable series of flasks is specified concluding: round-bottom, flat-bottom and conical flasks. Two series are specified for each type of round-bottom and flat-bottom flasks. The series differ in heigt and in selection of joint sizes. For conical flasks one series of heights is specified each having different joint sizes. The material must be borosilicate glass 3.3. For the…
Specifies the optical test methods the requirements for which are given in ISO 4849 to ISO 4853. The other test methods are given in ISO 4855. The following tests are described: test for refractive, astigmatic and prismatic powers, diffusion test, test for quality of material and surface, determination of transmittance. Annex A describes testing of unmounted oculars. Annexes B and C describe two…
Textiles — Determination of resistance to surface wetting (spray test) of fabrics
The method is applicable to all fabrics which may or may not have been given a water-resistant or water-repellent finish. It is not intended to predict the rain penetration resistance of fabrics, since it does not measure penetration of water through the fabric. Before testing carried out the specimen shall be conditioned for at least 24 h in the standard atmosphere for testing textiles.
Cork — Stoppers — Sampling for inspection of dimensional characteristics
The relevant terms and definitions are listed. From the dimensional point of view the acceptable quality level (AQL) is specified in the relation of lot size and bulk sample size. The AQL is a quality level which in a sampling plan corresponds to a specified but relatively high probability of acceptance (this definition is taken from ISO 3534).
Gives a simplified method of calculation and assumes that the wind blows horizontal from any direction, that the wind blows at a constant velocity and that there is a static reaction to the loadings applying to the crane structure. Includes built-in allowances for the effects of gusting (rapid changes in wind velocity) and for dynamic response.
