Kemiteknik
This document lists the best available acute-toxicity data of gases taken from a search of the current literature to allow the classification of gases and gas mixtures for toxicity by inhalation.
ISO 6145 is a series of documents dealing with various dynamic methods used for the preparation of calibration gas mixtures. This document specifies a method for continuous preparation of calibration gas mixtures, from nominally pure gases or gas mixtures by use of thermal mass-flow controllers. The method is applicable to preparation of mixtures of non-reacting species, i.e. those which do not react with any material of construction of the flow path in the thermal mass-flow controller or the ancillary equipment.
If this method is employed for preparation of calibration gas mixtures the optimum performance is as follows: the relative expanded measurement uncertainty U, obtained by multiplying the standard uncertainty by a coverage factor k = 2, is not greater than 2 %.
If pre-mixed gases are used instead of pure gases, mole fractions below 10−6 can be obtained. The measurement of mass flow is not absolute and the flow controller requires independent calibration.
The merits of the method are that a large quantity of the calibration gas mixture can be prepared on a continuous basis and that multi-component mixtures can be prepared as readily as binary mixtures if the appropriate number of thermal mass-flow controllers is utilized.
NOTE Gas blending systems, based upon thermal mass-flow controllers, and some including the facility of computerization and automatic control, are commercially available
prEN ISO 14451-1 establishes a terminology related to test methods and requirements for pyrotechnic articles for vehicles.
prEN ISO 14451-2 establishes uniform test methods for pyrotechnic articles for vehicles.
prEN ISO 14451-3 specifies labelling requirements for pyrotechnic articles for vehicles.
prEN ISO 14451-4 specifies the types and order of tests to be applied to micro gas generators and sets out the associated acceptance criteria and means of categorization. ISO 14451-4:2013 applies to type tests. ISO 14451-4:2013 is not applicable to articles containing military explosives or commercial blasting agents except for black powder or flash composition.
prEN ISO 14451-5 specifies the types and order of tests for application to the airbag gas generators and sets out the acceptance criteria and means of categorization. ISO 14451-5:2013 applies to type tests. ISO 14451-5:2013 is not applicable to articles containing military explosives or commercial blasting agents except for black powder or flash composition.
prEN ISO 14551-6 specifies the types and order of tests for application to the airbag modules and sets out the acceptance criteria and means of categorization. It applies to type tests and is not applicable to articles containing military explosives or commerical blasting agents except for black powder or flash composition.
prEN ISO 14451-7 specifies the types and order of tests to be applied to the seatbelt pretensioners and sets out the associated acceptance criteria and means of categorization. It applies to type tests and is not applicable to articles containing military explosives or commercial blasting agents except for black powder or flash composition.
prEN ISO 14451-8 specifies the types and order of tests to be applied to the igniter and sets out the acceptance criteria and means of categorization. It applies to type tests. It is not applicable to articles containing military explosives or commercial blasting agents except for black powder or flash composition.
prEN ISO 14451-9 specifies the types and order of tests to be applied to the actuators and sets out the associated acceptance criteria and means of categorization. It applies to type tests. It is not applicable to articles conaining military explosives or commercial blasting agents except for black powder or flash composition.
prEN ISO 14451-10 specifies the types and order of tests to be applied to the semi finished products and sets out the acceptance criteria and means of categorization. It applies to type tests. It is not applicable to articles containing military explosives or commercial blasting agents except for black powder or flash composition.