Steel grades to classify various steels by their composition and physical properties have been developed by a number of standards organizations. 1  SAE penial grades. 2  British Standards. 3  International Organization for Standardization ISO/TS 4949 :2003.here x is the material type (only 1 is specified so far), yy is the steel group number (specified in EN10027-2) and zz(zz) is a sequential number designated by the certifying body, the number in brackets being unused but reserved for later use. The steel groups are indicated below:
Join Date: Jul 2001. I was in China for 3 months and I didn't see much that even resembled American Chinese food, let alone dishes that were the same. American Chinese food is essentially fast food. It has a lot of salt in it for the same reason other fast food does.It's a cheap and easy way of adding a lot of flavor to dishes, and it helps preserve things.oin Date: Jul 2001. I was in China for 3 months and I didn't see much that even resembled American Chinese food, let alone dishes that were the same. American Chinese food is essentially fast food. It has a lot of salt in it for the same reason other fast food does.
Beef jerky, pickles, and smoked salmon are all examples of common foods that are preserved using salt. But are salty foods really safe to eat? How does salt as a preservative compare with other methods of food safety? Salt as a Preservative. Salt has been used as a preservative for ages, and works to preserve food in two ways: 1  Salt dries food. Salt draws water out of food and dehydrates it. 2  Salt kills microbes. High salt is toxic to most (not all) microbes because of the effect of osmolarity, or water pressure.