Synonyms of Hiccups, Chronic. General Discussion. A hiccup is an involuntary spasmodic contraction of the muscle at the base of the lungs (diaphragm) followed by the rapid closure of the vocal cords. Usually, hiccups last for a few hours or, occasionally, a day or two. However, chronic hiccups are ones that continue for an extended period of time.
Lets answer your question in several parts; The Short Version First: 1: First Class Letter - Max weight is 3.5 oz. 2: First Class Large Envelopes - Max weight is 13 oz. 3: First Class Parcels - Max weight is 13 oz. Long Version: You asked about âFirst Class Mailâ and the weight limits. Mail is defined as âLetters and packages conveyed by the postal systemâ. See Google.
Basis Weight Standards. When you're sending letter mail via USPS you must use an envelope with a minimum basis weight of 20 pounds. Mailed booklets must also be made from paper with a minimum basis weight of 20 pounds. Folded self-mailers made from a single sheet of paper must have a minimum basis weight of 28 pounds. If it's made from multiple sheets of paper then the minimum basis weight is reduced to 24 pounds.