How to Use Material Safety Data Sheets (MSDS)

How to Use Material Safety Data Sheets (MSDS) A Material Safety Data Sheet (MSDS) is a written document that provides product users and emergency personnel with information and procedures needed for handling and working with chemicals. MSDSs have been around, in one form or another, since the time of the ancient Egyptians. Although MSDS formats vary somewhat between countries and authors (an international MSDS format is documented in ANSI Standard Z400.1-1993), they generally outline the physical and chemical properties of the product, describe potential hazards associated with the substance (health, storage cautions, flammability, radioactivity, reactivity, etc.), prescribe emergency actions, and often include manufacturer identification, address, MSDS date, and emergency phone numbers. Key Takeaways: Material Safety Data Sheet (MSDS) A Material Safety Data Sheet or is a summary of the key properties of a substance and the hazards associated with its use.Material Safety Data sheets are not standardized, so its important to consult one provided by a respected source.Two chemicals that have the same name may have very different MSDS sheets because the particle size of the product and its purity may significantly affect its properties.MSDS sheets should be kept in an easy-to-find location and made accessible to all persons dealing with chemicals. Why Should I Care About a MSDS? Although MSDSs are targeted at workplaces and emergency personnel, any consumer can benefit from having important product information available. An MSDS provides information about proper storage of a substance, first aid, spill response, safe disposal, toxicity, flammability, and additional useful material. MSDSs are not limited to reagents used for chemistry, but are provided for most substances, including common household products such as cleaners, gasoline, pesticides, certain foods, drugs, and office and school supplies. Familiarity with MSDSs allows for precautions to be taken for potentially dangerous products; seemingly safe products may be found to contain unforeseen hazards. Where Do I Find Material Safety Data Sheets? In many countries, employers are required to maintain MSDSs for their workers, so a good place to locate MSDSs is on the job. Also, some products intended for consumer use are sold with MSDSs enclosed. College and university chemistry departments will maintain MSDSs on many chemicals. However, if you are reading this article online then you have easy access to thousands of MSDSs via the internet. There are links to MSDS databases from this site. Many companies have MSDSs for their products available online via their websites. Since the point of an MSDS is to make hazard information available to consumers and since copyrights dont tend to apply to restrict distribution, MSDS are widely available. Certain MSDSs, such as those for drugs, may be more difficult to obtain, but are still available upon request. To locate an MSDS for a product you will need to know its name. Alternate names for chemicals are often provided on the MSDS, but there is no standardized naming of substances. The  chemical name  or  specific name  is used most often to find MSDSs for health effects and protective measures.  IUPAC  (International Union of Pure and Applied Chemistry) conventions are used more often than  common names.  Synonyms  are often listed on MSDSs.The  molecular formula  may be used to locate a chemical of known composition.You can usually search  for substance using  its  CAS (Chemical Abstracts Service)  registry number.  Different chemicals  may have the same name, but each will have its own CAS number.Sometimes the easiest way to locate a product is to search by  manufacturer.Products may be found using their  US Defense Department NSN. A National Supply Number is a four-digit FSC class code number plus a nine-digit National Item Identification Number or NIIN.A  trade name  or  product name  is the brand, commercial, or marketing name the manufacturer gives the product. It does not specify what chemicals are in the pr oduct or whether the product is a mixture of chemicals or a single chemical. A  generic name  or  chemical family name  describes a group of chemicals with related physical and chemical properties. Sometimes an MSDS will list only the generic name of a product, although in most countries laws require that chemical names also be listed. How Do I Use a MSDS? An MSDS might appear to be intimidating and technical, but the information is not intended to be difficult to understand. You might simply scan an MSDS to see if any warnings or hazards are delineated. If the content is difficult to understand there are online MSDS glossaries to help define any unfamiliar words and often contact information for further explanations. Ideally you would read an MSDS before obtaining a product so that you could prepare proper storage and handling. More often, MSDSs are read after a product is purchased. In this case, you can scan the MSDS for any safety precautions, health effects, storage cautions, or disposal instructions. MSDSs often list symptoms that might indicate exposure to the product. An MSDS is an excellent resource to consult when a product has been spilled or a person has been exposed to the product (ingested, inhaled, spilled on skin). The instructions on an MSDS do not replace those of a health care professional, but can be helpful emergen cy situations. When consulting an MSDS, keep in mind that few substances are pure forms of molecules, so the content of an MSDS will depend on the manufacturer. In other words, two MSDSs for the same chemical may contain different information, depending on the impurities of the substance or the method used in its preparation. Important Information Material Safety Data Sheets are not created equal. Theoretically, MSDSs can be written by pretty much anyone (although there is some liability involved), so the information is only as accurate as the authors references and understanding of the data. According to a 1997 study by OSHA one expert panel review established that only 11% of the MSDSs were found to be accurate in all of the following four areas: health effects, first aid, personal protective equipment, and exposure limits. Further, the  health effects  data on the MSDSs frequently are incomplete and the chronic data are often incorrect or less complete than the acute data. This doesnt mean that MSDSs are useless, but it does indicate that information needs to be used with caution and that MSDSs should be obtained from trustworthy and reliable sources. The bottom line: Respect the chemicals you use. Know their hazards and plan your response to an emergency before it happens!

Capitonyms Are Separate Cases

Capitonyms Are Separate Cases Capitonyms Are Separate Cases Capitonyms Are Separate Cases By Mark Nichol Some words, in a class called capitonyms, have distinct meanings or senses when they are capitalized as opposed to generic senses. Writers should take care to render these words as appropriate to the context. Among capitonyms are several words denoting astronomical bodies. For example, one writes that Earth is orbited by the Moon and in turn orbits the Sun. However, when we refer to the surface soil of that planet, or employ an idiom such as â€Å"down to earth,† the proper form is earth. Likewise, if we write about the planet’s satellite or the star around which our world orbits, but from the terrestrial perspective, we generally lowercase the names for example, â€Å"The moon is full tonight† and â€Å"The sun passed behind the clouds.† (References to moons and suns beyond our solar system are also lowercased.) Geographical capitonyms include arctic, often capitalized in reference to Earth’s northern regions but generic when referring to cold temperature or mood (Antarctic, by contrast, is generally styled as a proper noun), and alpine, which is capitalized only in reference to the Alps, in Europe. In politics, such words as democratic, republican, conservative, liberal, socialist, and communist, generic references to concepts of political thought that serve as nouns and adjectives, are capitalized when referring to a political organization or a member of such an organization. The treatment of god depends on whether one refers to a deity in general or to that of the Abrahamic religions (Christianity, Islam, and Judaism). In philosophical or religious contexts, words for qualities such as truth and beauty are often capitalized to signal the significance of the conceptual connotation. Another religious term that may or may not be capitalized is mass, referring to a religious ceremony. It is often capitalized when referring to a specific religious ceremony (for example, â€Å"High Mass†) but is lowercased in generic references to such events (â€Å"He performed several masses†), as is the word when it refers to the unrelated meaning of physical phenomena. Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Spelling category, check our popular posts, or choose a related post below:25 Subordinating Conjunctions"Owing to" vs "Due to"Shore It Up