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Distributors in over 50 countries We work as a single company
SKC - A Global Company SKC is a GLOBAL company Distributors in over 50 countries We work as a single company SKC Ltd UK
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1500 BC EBERS PAPYRUS, EGYPTIAN PHYSICIANS RECOGNIZE TOXIC EFFECTS
4TH C BC HIPPOCRATES, BEGINNING OF SCIENTIFIC OBSERVATION, ASBESTOS DISEASE RECOGNISED 82 BC LEX CORNELIA MAKES POISONING ILLEGAL 54 AD PLINY THE ELDER, MERCURY REFINERS USE BLADDERS OVER FACE TO PROTECT AGAINST DUST 1473 ELLENBORG, RECOGNIZED CHRONIC LEAD AND MERCURY POISONING PHILIPUS PARACELSUS, CORRELATED "MINERS DISEASES" WITH METAL FUME 1500s CANARIES INTO THE MINES CATHERINE DE MEDICI, HUMAN EXPERIMENTATION 1556 AGRICOLA, RECOGNIZED "ASTHMA" AMONG MINERS 1700 RAMAZZINI, RECOGNIZED OCCUPATIONAL DISEASES AND PRESCRIBED CURES 1775 PERCIVAL POTT, RECOGNIZED SCROTAL CANCER AS A RESULT OF CLEANING CHIMNEYS 1833 FACTORY ACT, ENGLAND LIMITS HOURS OF CHILD LABOUR 1839 GERMANY BANS CHILD LABOUR IN DANGEROUS OCCUPATIONS 1864 ENGLAND'S FACTORY ACT PROVIDES FOR INSPECTION OF FACTORIES 1877 FACTORY INSPECTION IN USA 1884 K.B. LEHMANN, STUDIED TOXIC EFFECTS OF GASES ON ANIMALS 1905 BENZO (a) PYRENE IDENTIFIED AS CARCINOGEN, FIRST CHEMICAL CARCINOGEN 1910 FIRST NATIONAL CONFERENCE ON INDUSTRIAL DISEASES Time Line
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Ingestion (uptake) Routes
CONTAMINATION IN THE AIR SPILL BREATHING SURFACE SKIN
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Air Sampling OCCUPATIONAL HYGIENE The factory/workplace
Indoor air quality OUR ENVIRONMENT Inner cities Agriculture Pesticides - herbicides, - fungicides INDUSTRIAL Incineration/Waste Stacks and Ducts Power generation
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The amount collected is checked by the laboratory and reported usually
Air Sample Air is passed through a tube, filter or other collecting media, at a set air flowrate. The amount collected is checked by the laboratory and reported usually in mg/m3 or ppm.
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Air Sample To have a valid sample with MEANINGFUL results you will need: to select a relevant sample method to choose the right media to set the correct flow rate to sample for an appropriate time to analyse the sample accordingly + COMMON SENSE!
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SAMPLING WHO WHERE WHEN WHAT HOW METHOD
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Personal V Static ALL exposure limits are based on PERSONAL SAMPLES
30 cm Hemisphere around the nose and mouth ALL exposure limits are based on PERSONAL SAMPLES And MUST be taken in the Breathing Zone
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Aerosol Types of Contaminant Dust Fume Smoke SOLID
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Choosing an Air Sampling Method
EH 40/ UK guidelines lists M.D.H.S. methods Websites: N.I.O.S.H, O.S.H.A., H.S.E. Supplier information Laboratory advice
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Sources of Methods UK Methods - FREE at:
- MDHS 42/2 - Purchase HSE books - Subscription - SKC Factfiles online USA methods methods – ID121/125G. /7301/7303.
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Health and Safety Executive
Guidelines appear in MDHS 14/3 For Nickel MDHS 42/2 and 91
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Sampling for Particulates
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ISO/CEN Conventions EN481
THORACIC: UPTO 30 MICRONS RESPIRABLE: UPTO 14 MICRONS
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10 mg/m3 Inhalable Dust Affects the whole of the respiratory system
100 micron at 50% cut Blanket level of… 10 mg/m3 Ni = 0.1 or 0.5.mg/m3. Per EH40/2005.
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Inhalable Dust sampling The I.O.M. sampler
Inhalable sampler Cassette system All collected dust is measured Easily handled No contact with filter Mimics inhalation by a person Multi fraction sampling with foam inserts IOM cassette Transport clip IOM sampler Front Cassette Filter Support O ring Body cover front grid
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IOM Cassette IOM Cassette.
Cassette and filter are pre and post weighed as a single unit 1.5000
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Sample Train Is made up of : Pump Connecting tube Sampler
This should be calibrated to a flow of 2 L/min SAMPLER CONNECTING TUBE PUMP
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Calibration To Calibrate Switch on pump Connect sampler to calibrator
Ensure no leaks Adjust flow to recommended level Switch off pump
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Sample train calibration
Calibration in the case of air sampling with active systems, is defined as: The setting of the air flow through the filter medium, to the recommended level for the method being used. Flow should be checked before and after EACH sample. (UK MDHS method series)
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Electronic Calibration
Easy to use Accurate Quick results Not open to misinterpretation More expensive option
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Rotameters Cheap option Simple to use Accuracy can vary
Open to misreading Come as ‘ball’ or ‘float’ reading FSD
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Surface and Skin Monitoring
Monitoring the redness, hydration and epidermal waterloss of skin can be a useful measure of exposure Monitor the surfaces where exposure occurs for cleanliness Niosh 9102.
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Ventilation Systems Regular checks should be made that your ventilation system is working correctly
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Any Questions?
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