Final answer:
The maximum allowable operating pressure for an undililated LP-gas system is determined by safety standards and manufacturer guidelines, typically incorporating a safety factor to prevent failure under high pressure conditions.
Step-by-step explanation:
The maximum allowable operating pressure for an undiluted LP-gas system is not directly mentioned in the snippets provided. However, safety factors are discussed in the context of gas cylinders. For example, a cylinder designed with a safety factor of 2 is expected to handle double the pressure it is rated for. This implies that a cylinder with a safety rating of 200 atmospheres is designed not to fail until reaching approximately 400 atmospheres due to the safety factor. It is important to always adhere to the manufacturer's guidelines and relevant safety codes for specific operating pressures.
Safety limits, undiluted LP-gas system and working within manufacturer guidelines are crucial for ensuring safe operation. In practice, the ideal gas law and the van der Waals equation can provide theoretical predictions, but empirical data and safety standards will dictate the actual maximum operating pressures.