1290 / 1302
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...