In a pretensioner device, a boot formed into a cylindrical shape covers a circumference of an elongated member, and a tip end of webbing inserted into an insertion hole of a joint anchor through a pair of through-holes formed on an upper end side of the boot is sewn at portions in front of and behind an insertion portion, whereby the boot is engaged with the elongated member. The optical system has a front-end optical sub-system or a light source operative to emit an optical beam. Thus, manufacturing cost of the articles can be reduced. A rule includes a statement of requirements and the identity of a corresponding destination. Such azeotropic and azeotrope-like compositions are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene. In alternate embodiments, no dilution at the first location is required, and optionally minimal additions to adjust intrinsic deficiencies may be made, but the sample is nonetheless incubated during transit to the test location.