Material Safety Data Sheets consulting

When processed and used according to manufacturer s recommendations, acetal resins present no extraordinary health risks. Before the use of any plastic material, including acetal, the Material Safety Data Sheet (MSDS) appHcable to the grade in question should be consulted. 

C depending on the reference consulted). Fires may be controlled with carbon dioxide or dry chemical extinguishers. Recommended methods of handlings loadings unloadings and storage can be obtained from Material Safety Data Sheets and inquiries directed to suppHers of acetone. 

Mercury salts are highly toxic and must be handled carefliUy. It is necessary to consult the material safety data sheet prior to handling. Strict adherence to OSHA/EPA regulations is essential. The ACGIH adopted (1991—1992) TLV for mercury as inorganic compounds is TWA 0.1 mg/m and for fluorides as F 2.5 mg/m. ... 

Sihca and aluminosihcate fibers that have been exposed to temperatures above 1100°C undergo partial conversion to mullite and cristobaUte (1). Cristobahte is a form of crystalline siUca that can cause siUcosis, a form of pneumoconiosis. lARC has deterrnined that cristobaUte should be classified as 2A, a probable carcinogen. The amount of cristobahte formed, the size of the crystals, and the nature of the vitreous matrix in which they are embedded are time- and temperature-dependent. Under normal use conditions, refractory ceramic fibers are exposed to a temperature gradient, thus only the hottest surfaces of the material may contain appreciable cristobahte. Manufacturers Material Safety Data Sheets (MSDS) should be consulted prior to handling RCF materials. 

Rosin has a low order of toxicity foUowing ingestion or skin contact. Rosin and its numerous derivatives have a number of permitted food packaging and other direct and indirect food contact uses throughout the world. Sanctioned uses appHcable in the United States are outlined in U.S. Food and Dmg Administration (U.S. FDA) Regulations (2). Material Safety Data Sheets (MSDSs) for specific rosins and thein derivatives should be consulted before thein use. 

Occupational Safety and Health. OSHA has set no specific limits for sodium and potassium sibcates (88). A pmdent industrial exposure standard could range from the permissible exposure limit (PEL) for inert or nuisance particulates to the PEL for sodium hydroxide, depending on the rate of dissolution and the concentration of airborne material. Material safety data sheets issued by siUcate producers should be consulted for specific handling precautions, recommended personal protective equipment, and other important safety information. 

Isocyanates. Isocyanates in general are toxic chemicals and require great care in handling. Oral ingestion of substantial quantities of isocyanates can be tolerated by the human body, but acute symptoms may develop from the inhalation of much smaller amounts. The inhalation of isocyanates presents a ha2ard for the people who work with them as weU as the people who Hve in the proximity of an isocyanate plant. Adequate control of exposure is necessary to achieve a safe working environment. The suppHers Material Safety Data Sheets (MSDS) have to be consulted for the most current information on the safe handling of isocyanates. 

Health and Safety Factors. The Material Safety Data Sheets provided by the suppUers should be consulted for each product. In general, products are aqueous emulsions with low levels of toxicity. Products with high solvent content have mostly been eliminated. Personnel handling the chemicals should always avoid contact of the products with skin and eyes, and avoid exposure to vapors if the product contains volatile components. 

Additional information on health and safety aspects should be sought by consulting material safety data sheets available from suppHers of the chemical in question. In addition, most suppHers of bleaching chemicals, upon request, provide on-site training sessions by experts on the safe use and handling of their products. 

Neoprene Type TW was shown to have low oral toxicity in rats. The LD q was found to be in excess of 20,000 mg/kg. Human patch tests with Types GN, W, WRT, and WHV showed no skin reactions (169). The FDA status of Du Pont Neoprene polymers is described (172). Although polychloroprene itself has not been shown to have potential health problems, it should be understood that many mbber chemicals that may be used with CR can be dangerous if not handled properly. This is particularly tme of ethylenethiourea curatives and, perhaps, secondary amine precursors often contained in sulfur modified polychloroprene types. Material safety data sheets should be consulted for specific information on products to be handled. 

Of course, aH materials that are processed in the molten state can cause bums if the hot material comes in contact with the skin. Care must be taken to avoid this, and it should be noted that molten material left in the barrel of an extmder or injection mol ding machine can "spit" unexpectedly. In aH cases, it is recommended that the manufacturer s Material Safety Data Sheet be consulted before working with any of these materials. 

The alkalis and acids used to catalyze phenolic reactions are highly corrosive and any exposure is a potentially serious health threat. Those handling these materials should be thoroughly familiar with the appropriate Material Safety Data Sheets and emergency procedures. We do not purport to provide any specific health guidance here except to say that one should consult the appropriate references and be properly trained when making phenolic resins. 

Material Safety Data Sheet May be used to comply with OSHA s Hazard Communication Standard. 25 CFR 1910.1200. Standard must be consulted for specific requirements. U.S. Department of Labor A Occupational Safety and Health Administration (Non-Mandatory Form) Form Approved 0MB No. 1218-0072... 

Caution Common organic extracting solvents are both volatile and flammable. Ignition can be caused by hot surfaces without the need of sparks or flames. Some solvents (particularly diethyl ether) can also form peroxides that are explosive when concentrated, especially when heating is involved. Some solvents may also be toxic, carcinogenic, and/or teratogenic. Always consult the Material Safety Data Sheets (MSDS) before using any solvent. 

Was the Material Safety Data Sheet (MSDS) consulted Would it have indicated the presence of sodium borohydride ... 

The toxicity of all the chemicals you will be working with must be known. Consult the instructor, material safety data sheets (MSDSs), safety charts, and container labels for safety information about specific chemicals. Recently, many common organic chemicals, such as benzene, carbon tetrachloride, and chloroform, have been deemed unsafe. 

First, the low boiling point (37 C) can lead to handling difficulty. We found it necessary to replace the Waters 6000A pump in the Waters Model 244 high performance liquid chromatograph (HPLC) with a Waters M45 pump to avoid an occasional interruption in flow which we assured to be caused by vapor lock. Second, there are health hazards associated with the use of HFIP, and hygenlc laboratory procedures should be followed. The system should not be used prior to consulting the HFIP Product Information and Material Safety Data Sheet from Du Pont. 

The azeotrope 70/30 MeCl2/HFIP Is an excellent solvent for PET and similar pol3nners, as well as for polystyrene. This combination, along with Its UV transparency, makes It an excellent GPC solvent. The Du Pont Product Information and Material Safety Data Sheet on HFIP should be consulted before using this system. 

In addition to a review of several thousand material safety data sheets, the author consulted and... 

Even though materials are ordered according to chemical structure, a great variety of individual materials belonging to the same polymer type are discussed as well. In particular, the properties and safety data given should be considered as indicative. The reader who is actively engaged with the materials presented here should consult the technical data sheets and the material safety data sheets provided by the individual manufacturers. 

Health and Safety Issues. Polyesterether elastomers derived from dimethyl terephthalate, butanediol, and Ptmeg are not hazardous according to the published Materials Safety Data Sheets (MSDS) for this elastomer. Polymers of a similar structure containing isophthalic acid are also not considered hazardous. For other copolymer elastomers, the MSDS put out by suppliers should be consulted by potential users before evaluation. One environmental advantage of thermoplastic elastomers of this type is that they are melt-reprocessible and thus scrap and off-specification material and even obselete parts can be easily recycled. Up to 25% by weight of recycled material can be incorporated (see Recycling, plastics). 

The manufacturing of alkyd resins involves a wide variety of organic ingredients. Whereas most of them are relatively mild and of low toxicity, some, such as phthalic anhydride, maleic anhydride, solvents, and many of the vinyl (especially acrylic) monomers, are known irritants or skin sensitizers and are poisonous to humans. The hazard potential of the chemicals should be determined by consulting the Material Safety Data Sheets provided by the suppliers, and recommended safety precautions in handling the materials should be practiced. 

It is not possible in the space available to list all the precautions to be taken when handling hazardous chemicals. Many texts have been written about laboratory safety see Literature Cited for a selected list of examples. Obviously, all national and local laws should be obeyed as well as all institutional regulations. Controlled substances are regulated by the Drug Enforcement Administration. By law, Material Safety Data Sheets must be readily available. All laboratories should have a Chemical Hygiene Plan [29CFRPart 1910.1450] and institutional safety officers should be consulted as to its implementation. Help is (or should be) available from your institutional Safety Office. Use it. 

Because different material components in epoxy adhesives have different properties and characteristics when it comes to health and safety, one should always try to find out what chemicals are in the products being used. This can be done by consulting the specific manufacturer s Material Safety Data Sheet (MSDS). 

A product-specific material safety data sheet (MSDS) is prepared for each product that has been formulated for a customer. Any time a change in the formula or an ingredient substitution is made in that product, a new update of the MSDS information is performed. In addition, the customer is notified that the original product has changed and the new MSDS is the document that should be consulted for product health, safety, and environmental information. The most current product MSDS then accompanies each shipment of product from the manufacturing facility. 

An estimate of the toxicity or intrinsic hazard is needed for each material identified in the inventory. Such information for many chemicals in the form of a Material Safety Data Sheet (MSDS) are required by the OSHA Hazard Communication Standard. (Other countries have similar requirements.) Standard hazard-data sources may need to be consulted for those chemical compounds for which no MSDSs are presently available. Adequate hazard data may be lacking for various mixtures that are unique to the plant. For such mixtures, it may be necessary to analyze the contents and then estimate the overall hazard based on the individual components. 

Obtain a material safety data sheet for each chemical and consult it before the chemical is used. 

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