Elastomeric seals — Material requirements for seals used in pipes and fittings carrying gaseous fuel...
This document specifies requirements for elastomeric materials used in seals for supply pipes and fittings, ancillaries and valves at operating temperatures in general from ?5 °C up to 50 °C and in special cases from ?15 °C up to 50 °C, for the following:
a) general applications (see Table 4, type G series):
— gaseous fuel [manufactured, natural and liquefied petroleum gas (LPG) in the…
Systems and software engineering - High-level Petri nets - Part 1: Concepts, definitions and graphic...
This document defines a Petri net modeling language or technique, called high-level Petri nets, including its syntax and semantics. It provides a reference definition that can be used both within and between organizations, to ensure a common understanding of the technique and of the specifications written using the technique. This document also facilitates the development and interoperability of…
