1 Average unique open rate: unique opens divided by number of emails delivered. 2  Opt-out: when a recipient unsubscribes or opts out of further communications. 3  Thereâs more on this in our post on tips for managing email unsubscribes. 4  Response rate: the number of actual responses made as a result of the email campaign.
substance: hydrogen chloride trade names/synonyms: hydrochloric acid, anhydrous; hydrogen chloride; spirits of salt; muriatic acid; hydrochloric acid; hydrochloric acid gas; anhydrous hydrochloric acid; hydrogen chloride (hcl); un 1050 chemical family: halogenated, gas creation date: sept 20, 2009 revision date: dec. 15, 2009 2. composition, information on ingredients component: hydrogen chloride cas number: 7647-01-0 percentage: 100 3. hazards identification nfpa ratings (scale 0-4): health=3 fire=0 reactivity=1
DOT's 2008 Emergency Response Guide Book is indexed by ID Numbers which are actually the UN/NA number. Be careful not to confuse the ID number (UN/NA number) with the Guide number (the page that tells you about the properties and hazards). For example, the UN/NA number for ammonia is 1005, but the hazards are discussed in Guide entry 125. The Guide is a free download and is on-line searchable.