GAELP - CCE - 13 Sampling and Testing Paint
GAELP - CCE - 13 Sampling and Testing Paint
GAELP - CCE - 13 Sampling and Testing Paint
Paint
Presentation based on Toolkit Module C.ii.
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IPEN - A Global NGO Network
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Reasons for analysing the lead content
of paint
New paint for sale:
• Assess the availability of lead-containing paint in the market
and the need for better government regulation and
enforcement
• Provide consumers with information so they can choose non-
lead paint and can push for government controls on lead paint
• Draw attention to companies that produce lead-containing
paint and encourage them to voluntarily reformulate their
products
Existing paint on structures:
• Assess potential sources of exposure to lead from existing paint
on structures, e.g. in homes, schools, hospitals, and
playgrounds, and the possible need for mitigation measures
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Methods for measuring lead in new
paint prior to use
Laboratory analysis
• Three main methods
• Results typically reported in ppm, % or mg/kg.
100 ppm = 0.01% = 100 µg/g = 100 mg/kg
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International standards for sample
preparation
• ISO 1513, Paints and varnishes - Examination and
preparation of test samples
• ASTM E1645-01, Practice for Preparation of Dried
Paint Samples by Hotplate or Microwave Digestion
for Subsequent Lead Analysis
• ASTM E1979-12, Practice for Ultrasonic Extraction of
Paint, Dust, Soil, and Air Samples for Subsequent
Determination of Lead
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International standards for test
methods
• ISO 6503, Paints and varnishes - Determination of total lead - flame
atomic absorption spectrometric method (For measurement of lead
concentration of 0.01% to 2.0%)
• ASTM D3335-85a(2014), Standard test method for low concentrations
of lead, cadmium, and cobalt in paint by atomic absorption
spectroscopy (For measurement of lead concentration of 0.01% to
5.0%)
• ASTM E1613-12, Standard Test Method for Determination of Lead by
Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES),
Flame Atomic Absorption Spectrometry (FAAS), or Graphite Furnace
Atomic Absorption Spectrometry (GFAAS) Techniques (Measurement
of lead concentration differs per analytical technique)
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Laboratory analysis: Some quality
considerations
• Trained personnel and good quality assurance
procedures are essential to ensure accuracy and
reliability of results
• Laboratory should participate in a proficiency-testing
scheme, e.g. the Environmental Lead Proficiency
Analytical Testing (ELPAT) program
• Laboratory's experience in lead paint analysis (a lab
typically needs time to get the method right)
• Analytical methods used (e.g. FAAS, GFAAS, ICP-AES)
and Limit of detection
• Specific sample requirements that the chosen
laboratory may have
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Portable High Definition
X-ray Fluorescence (HD XRF)
• Uses an x-ray tube to detect and
measure lead (needs trained operator)
• Currently, only one model is accurate enough to
measure total lead content in parts per million (ppm),
at levels lower than 90 ppm
• Equipment is relatively expensive (around 50,000
USD) but is faster and will be cost-effective if a large
number of paints needs to be analysed
• Can be used for samples of new paint, if they are
prepared on a smooth, flat, homogeneous surface,
such as wood
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Data available for the region
Country Year of Number Percent Percent Maximum Ref
Study of Paints Greater Than Greater lead
90 ppm Than content
(Number) 10,000 ppm (ppm)
(Number)
Armenia 2011 26 77% (20) 38% (10) 130,000 [1]
Azerbaijan 2013 30 77% (23) 7% (2) 20,000 [2]
Belarus 2009 22 82% (18) 9% (2) 59,000 [3]
Kazakhstan 2011 26 81% (21) 38% (10) 71,000 [1]
Kyrgyzstan 2013 30 67% (20) 10% (3) 99,000 [2]
Russia 2011 21 76% (16) 19% (4) 53,000 [4]
[1] Clark, C.S., et al., Examination of lead concentrations in new decorative enamel paints in four
countries with different histories of activity in lead paint regulation. Environmental Research, 2014. 132:
p. 233-243.
[2] UNEP and IPEN; Lead in Enamel Decorative Paints; National Paint Testing Results: A Nine Country
Study, 2013:
[3] Toxics Link and IPEN; Lead in New Decorative Paints; 2009:
[4] Clark, C.S., et al., Total lead concentration in new decorative enamel paints in Lebanon, Paraguay and
Russia. Environmental Research, 2015. 138(0): p. 432-438 12
New Studies in 2016
1. Armenia • Already ongoing studies
2. Georgia • 25-50 paints will be analyzed for
3. Moldova total lead content
4. Belarus • The results will give an updated
picture of the situation in the
5. Ukraine region
6. Kazakhstan • The results will be publically
7. Kyrgyzstan released, and provide
8. Russia stakeholders with information to
act
9. Tajikistan
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Using lead paint analyses to investigate the
paint market
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Conducting a market survey of lead
content in new paint for sale
• Provides information about the extent of the problem
that lead paint presents in a country and the need for
regulatory or enforcement measures.
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Linking analytical data to paint market
information
• Relevant information includes:
• available brands on the market, both locally-produced and
imported products
• size of manufacturer and relative sales volume
• Information on paint-can labels about ingredients, hazard
warnings about lead, or statements indicating low lead content
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Linking analytical data to paint market
information (continued)
• This information can be used:
• as evidence when enacting and enforcing regulations on
production, export / import, sales and use of paint with added
lead
• to show the need for including a labeling requirement in the
regulation
• in outreach to industry stakeholders for dialogue about
regulatory controls on lead paint
• More information is available:
• More detail on how to conduct a market survey is found in a
2013 UNEP/IPEN report (See Reference 8 at end of this
module.)
• See Module F of the toolkit for paint study results in developing
countries
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Paint sample preparation
• Prepare work area: cover surface with clean
paper/plastic; assemble needed supplies
• Wear gloves
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Paint sample preparation, continued
• Apply a thin, single coating of paint to a glass or wood slide
• Use a new brush/ applicator for each sample to avoid cross-
contamination
• Dry the paint in the open air or in an oven at 105 °C
• Carefully document each sample:
unique sample number matched to labelling
information for paint (lot number/ batch/ date)
• Ensure
chain-of-custody
documentation
Photo Credit:
The EcoWaste Coalition
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Summary
• Choice of analytical method to measure lead in paint depends on
many factors, such as the reason for analysis, number of samples,
cost limitations, need for precise measurement, etc
• For new paint, three good laboratory methods are available that
vary in cost and level of detection
• Market surveys of new paints for sale are used to determine the
availability of lead paint and can provide evidence to justify
regulation and to monitor compliance
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References
1. Environmental Lead Proficiency Analytical Testing (ELPAT) programme
http://www.aihapat.org/ProficiencyTestingPrograms/elpat/Pages/default.aspx
2. ASTM D3335-85a (2014), Standard Test Method for Low Concentrations of Lead, Cadmium,
and Cobalt in Paint by Atomic Absorption Spectroscopy, ASTM International, West
Conshohocken, PA http://www.astm.org/Standards/D3335.htm
3. ASTM E1613-12, Standard Test Method for Determination of Lead by Inductively Coupled
Plasma Atomic Emission Spectrometry (ICP-AES), Flame Atomic Absorption Spectrometry
(FAAS), or Graphite Furnace Atomic Absorption Spectrometry (GFAAS) Techniques, ASTM
International, West Conshohocken, PA
http://www.astm.org/Standards/E1613.htm
4. ASTM E1645-01 (2007), Practice for Preparation of Dried Paint Samples by Hotplate or
Microwave Digestion for Subsequent Lead Analysis, ASTM International, West
Conshohocken, PA http://www.astm.org/Standards/E1645.htm
5. ASTM E1979-12, Practice for Ultrasonic Extraction of Paint, Dust, Soil, and Air Samples for
Subsequent Determination of Lead, ASTM International, West Conshohocken, PA
http://www.astm.org/Standards/E1979.htm
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References (continued)
6. ISO 1513:2010, Paints and varnishes - Examination and preparation of test samples
(available in English, French and Russian).
http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=50
490
7. ISO 6503:1984, Paints and varnishes - Determination of Total Lead -- Flame Atomic
Absorption Spectrometric Method (available in English and French)
http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=12
880
8. UNEP/IPEN (2013). Lead in Enamel Decorative Paint: National Paint Testing Results: A Nine
Country Study (method described in pages 36-38)
http://www.unep.org/chemicalsandwaste/Portals/9/Mercury/Documents/publications/L
ead_in_Enamel_decorative_paints.pdf
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Additional information
Brief guide to analytical methods for measuring lead in paint (available in Chinese,
English, French and Spanish)
http://www.who.int/ipcs/assessment/public_health/lead/en
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Point of Contact
Dr. Sara Brosché
Global Lead Paint Elimination Project Manager
IPEN
Box 7256, SE-402 35 Gothenburg, Sweden
Email: SaraBrosche@ipen.org
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