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The Xenemetrix Legacy of Innovation
Continues
For
well over a decade XRF has been the preferred method for
analyzing wood treating chemicals in the baths as well
as monitoring the retention in the wood. Virtually every
piece of treated lumber in the US has been certified based
on XRF results. The American Wood Preservers Association
(AWPA) has approved XRF methods for analyzing every common
pressure-treating chemical. Here are several different
types of treating processes that can be monitored by XRF.
CCA in Wood and Solution
Wolmanized lumber is treated with a chromium, copper, and
arsenic (CCA) treatment. CCA treated wood is commonly used
in decks. The concentrations are high and EDXRF can measure
them easily.
ACZA in Wood and Solution
Chemonite (ACZA) treatment is an alternative to CCA, and
contains ammonium, copper, zinc and arsenic. The last three
can be measured by EDXRF.
ACQ in Wood and Solution
ACQ is yet another preservative it contain ammonium, copper
and Quantenary ammonium. Total ACQ is quantified based
on the Cu analysis.
Pentachlorophenol in wood and Solution
Pentachlorophenol is what is commonly used in telephone poles
and railroad ties. It contains chlorine and can easily
be monitor by EDXRF.
Zinc Borate treated wood and solutions
Zinc borate is a fungicide added to masonite and other types
of composite and pressed wood.
IPBC treated wood and solutions
IPBC (3-iodo-2-propynyl butyl carbamate) is another insecticide
product used to treat wood. It is often used in finished
woods like window frames, and can be measured based on
the iodine intensity. IPBC is particular good as a termiticide.
Bromine Wood Treatment
Some organic bromine compounds can be a good termiticide
and can be analyzed with EDXRF. |