What is a cold test?
A cold test can refer to a number of different types of tests that can be performed on different objects and materials by low temperatures. The way this cold is used and exactly what the degree of cold is used depends on the tested object and the desired results. This type of testing can be used on seeds to determine what types of rough conditions could still germinate and flourish, as well as oil cooking oils to determine the probability that a lot of oil will become cloudy. The cold test can also be used for a specific object or material to determine how strong the object will remain if it is used at low temperatures.
The term "cold test" usually applies to any type of test performed by cooler than average temperature to determine certain characteristics of an object or material. One of the common uses is to determine the hardness of seeds that are likely to be planted in cold weather. This may be important in determining how well the seeds can germinate, the cakesSeeding early in the spring if late frost should occur.
The cold test can be carried out on seeds by wrapping in a paper towel or other placement in non -sterile soil where other bacteria are present. These seeds are then maintained at low temperatures, often about 50 ° F (10 ° C) for seven days. The seeds are then located in more ideal cultivation conditions of about 77 ° F (25 ° C) for another seven days and observed for germination and growth.
The cold test can also be carried out in oil, such as rapeseed oil to determine the probability that the oil dose will become cloudy or separate. This department may occur in the consumer's home if the oil is stored at low temperatures, resulting in oil clouding or producing crystals in its container. The cold oil test brings the sample to about 59 ° F (15 ° C) to see how it reacts. This can be used to indicate the Chances CloyNines development in a larger dose of oil.
Metal objects are often tested using a cold test to determine the strength of the metal used in the construction of the object. This is usually done to ensure metal tools and objects will not be fragile in cold weather and is particularly important for safety equipment or tools designed for use in climbing and saving cold weather. The cold test can also be used for items designed for space use to show how the item could respond to the cold space of space. Such items are often tested at about -415 ° F (about -248 ° C). This is particularly important for cosmic telescopes to precisely mirror mirrors to reflect light as soon as the mirrors are pulled into the cold space.