Muscle cramps may be brought on by many conditions or activities, such as: 1  Exercising, injury, or overuse of muscles. 2  Pregnancy. Cramps may occur because of decreased amounts of minerals, such as calcium and magnesium, especially in the later months of pregnancy.  Exposure to cold temperatures, especially to cold water.
Butane is a colorless gas with a faint petroleum-like odor. For transportation it may be stenched. It is shipped as a liquefied gas under its vapor pressure. Contact with the liquid can cause frostbite.
Whenever you use Butane, you need to take certain precautions to stay safe. Calor is committed to giving you all the information and advice you need to use your Butane effectively and safely, so weâve created a guide to using our gas bottles. Never try to disconnect or unscrew a regulator from a gas bottle if the flame doesnât go out when the cylinder hand wheel is turned off. 2  When using a 4.5kg gas bottle, avoid using the rubber washer from the protective black cap as a sealing washer.