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as far below the TLV as prudent practices will allow. Exposure to respirable crystalline silicas (RCS) represents a significant hazard to workers, particularly those employed in the construction industry where respirable dusts of of cement and concrete are common. Cutting, grinding and other high speed processes, involving their finished products, may further result in dusty atmospheres. Exposure controls Appropriate engineering controls Engineering controls are used to remove a hazard or place a barrier between the worker and the hazard. Well-designed engineering controls can be highly effective in protecting workers and will typically be independent of worker interactions to provide this high level of protection. The basic types of engineering controls are: Process controls which involve changing the way a job activity or process is done to reduce the risk. Enclosure and/or isolation of emission source which keeps a selected hazard "physically" away from the worker and ventilation that strategically "adds" and "removes" air in the work environment. Personal protection Eye and face protection No special equipment required due to the physical form of the product. However when cutting or sanding, safety glasses may be required. Skin protection See Hand protection below Hands/feet protection No special equipment needed when handling small quantities However when cutting or sanding, light weight rubber gloves may be required Wear safety footwear. Body protection See Other protection below Other protection Loose fitting protective clothing, eg overalls/ long sleeve shirts. When working above head height, use head covering, dust mask and goggles. Minimise dust generation by using sharp hand cutting tools if possible. Powered tools (eg saws etc.) should only be used if fitted with dust extraction and containment equipment. Thermal hazards Not Available Recommended material(s) GLOVE SELECTION INDEX Glove selection is based on a modified presentation of the: " Forsberg Clothing Performance Index". The effect(s) of the following substance(s) are taken into account in the computer- generated selection: EssaStone Material CPI PE/EVAL/PE A PVA A TEFLON A * CPI - Chemwatch Performance Index A: Best Selection B: Satisfactory; may degrade after 4 hours continuous immersion C: Poor to Dangerous Choice for other than short term immersion NOTE : As a series of factors will influence the actual performance of the glove, a final selection must be based on detailed observation. - * Where the glove is to be used on a short term, casual or infrequent basis, factors such as "feel" or convenience (e.g. disposability), may dictate a choice of gloves which might otherwise be unsuitable following long-term or frequent use. A qualified practitioner should be consulted. Respiratory protection Type AX-P Filter of sufficient capacity. (AS/NZS 1716 & 1715, EN 143:2000 & 149:2001, ANSI Z88 or national equivalent) Required Minimum Protection Factor Half-Face Respirator Full-Face Respirator Powered Air Respirator up to 10 x ES AX P1 Air-line* - - AX PAPR-P1 - up to 50 x ES Air-line** AX P2 AX PAPR-P2 up to 100 x ES - AX P3 - Air-line* - 100+ x ES - Air-line** AX PAPR-P3 * - Negative pressure demand ** - Continuous flow A(All classes) = Organic vapours, B AUS or B1 = Acid gasses, B2 = Acid gas or hydrogen cyanide(HCN), B3 = Acid gas or hydrogen cyanide(HCN), E = Sulfur dioxide(SO2), G = Agricultural chemicals, K = Ammonia(NH3), Hg = Mercury, NO = Oxides of nitrogen, MB = Methyl bromide, AX = Low boiling point organic compounds(below 65 degC) SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Information on basic physical and chemical properties Appearance Polished solid sheets and shaped articles. Physical state Solid Relative density (Water = 1) Not Available Odour Not Available Partition coefficient n-octanol / water Not Available Odour threshold Not Available Auto-ignition temperature (°C) Not Applicable pH (as supplied) Not Applicable Decomposition temperature Not Available Melting point / freezing point (°C) Not Applicable Viscosity (cSt) Not Applicable Initial boiling point and boiling range (°C) Not Applicable Molecular weight (g/mol) Not Applicable Flash point (°C) Not Applicable Taste Not Available Evaporation rate Not Applicable Explosive properties Not Available Flammability Not Applicable Oxidising properties Not Available Chemwatch: 22-9931 Version No: 5.1.1.1 Page 4 of 7 EssaStone Issue Date: 11/03/2014 Print Date: 15/06/2014 Continued...