3. রাসায়নিক দ্রব্য কাণক ব্ণে?
A chemical is any substance consisting of matter.
This includes any liquid, solid, or gas.
A chemical is any pure substance or any mixture.
It doesn't matter whether it occurs naturally or is
made artificially.
এক কথায় এই পৃনথব্ীর সব্নকছুই কযানিণকে
12. MSDS
পোনর্বর শেরাপত্তা শর্ষয়ক ির্য িাশেকা
Section 1: Identification of Substance and Supplier
Section 2: Hazard Identification
Section 3: Composition/Information on Ingredients
Section 4: First Aid Measures
Section 5: Firefighting Measures
Section 6: Accidental Release Measures
Section 7: Handling and Storage
Section 8: Precautions to Control Exposure/PPE
13. MSDS
পোনর্বর শেরাপত্তা শর্ষয়ক ির্য িাশেকা
Section 9: Physical and Chemical Properties
Section 10: Stability and Reactivity
Section 11: Toxicological Information
Section 12: Ecological Information
Section 13: Waste Disposal Consideration
Section 14: Transportation Information
Section 15: Regulatory Information
Section 16: Other Information
15. Definition
Flash point- The lowest temperature at which a liquid
produces enough vapor to ignite.
PEL– Permissible Exposure Limit is the standard recognized
by industry as the maximum amount or concentration of a
chemical that a worker may be exposed to.
TLV—Threshold Limit Value is a recommended limit for
chemical substance exposures, similar to the PEL but most
often more restrictive than the PEL.
TWA– An 8-hour Time Weighted Average is the concentration
the average worker can be exposed during an 8-hour workday,
day after day, without harmful effects.
16. Definition
Lethal Dose50 (LD50) is the amount of a substance that, when
administered by a defined route of entry (e.g. oral or dermal)
over a specified period of time, is expected to cause the death
of 50% of a defined animal population.
Lethal Concentration50 (LC50) is the amount of a substance in
air that, when given by inhalation over a specified period of
time, is expected to cause the death in 50% of a defined
animal population.
36. Chemical Management
1
Are compatibility chart is available at chemical keeping area & store organized
as compatibility chart
2 Are secondary container & MSDS is available at chemical ?
3 Are Chemical Spill Kits are available at the chemical storing area?
4 Are chemical handling equipments are keep and use safely?
5 Are eye was station is available ?
6
Are Label and Pictogram available for each and every chemical Container (Like
as Bottle, Jar, Bowl, Drum etc) ?
7 Are Proper ventilation available ?