METHODS FOR SAMPLING WOOD PRESERVATIVES
Page 4 of 6
© 2015
Table 3 - Sampling of Creosote and Creosote Solutions1
Sampling,
Treating, or
Storage to be
Sampled
Ship and barge tanks
Time of Sampling
Immediately after
loading or prior to
unloading
Immediately after
loading or prior to
unloading
Whenever required for
inventory or other
purposes
Whenever required for
inventory of other
purposes
Immediately after
cylinder is filled
Immediately after vat is
filled for cold bath
Preferred
Sampling
Method
Bottle or beaker
sampling
Type of Sample
All-levels sample
Size of Sample to
be Taken from
Each Container
Approximately 5
gallons (20 L)
Tank cars and tank
trucks
Bottle or beaker
sampling
Composite of upper,
middle and lower
samples
1 gallon (4 L)
Vertical storage and
working tanks
Bottle or beaker
sampling
All-levels sample
1-3 gallons (4-12 L)
depending on size of
tank
1 -3 gallons (4-12 L)
depending on size of
tank
Horizontal storage and
working tanks
Pressure treating
cylinders
Nonpressure treating
vats
Bottle of beaker
sampling
Composite of upper,
middle and lower
samples
Additional Instructions
Gauge free water separately
if creosote is not agitated
thoroughly.
Gauge free water separately
if creosote is not agitated
thoroughly. Use Table 1 to
determine proportion of sub-
samples in composite
sample.
Gauge free water separately
if creosote is not agitated
thoroughly.
Gauge free water separately
if creosote is not agitated
thoroughly. Use Table 1 to
determine proportions of
sub-samples in composite
sample.
Tap sample
Bottle or beaker
sample
Tap sample
All-levels sample
1 gallon (4 L)
1 gallon (4 L)
1 When the sample is taken the temperature of the material should be at least 150° F and the material should be completely liquefied and thoroughly agitated.
Table 4 - Sampling of Oil-Borne and Water-Borne Preservatives (In Solid State, Concentrated Solutions, or Ready-to-
Use Solutions)
Shipping, Treating
or Storage
Containers to be
Shipped
Tank cars and tank
trucks
Vertical storage and
working tanks
Horizontal storage and
working tanks
Pressure treating
cylinders
Nonpressure treating
cylinders
Drums or cans of 5
gallon capacity or
larger containing
liquids
Cans of less than 5
gallons capacity
containing liquids
Time of Sampling
Immediately after
loading or prior to
unloading
Whenever required for
inventory or other
purposes
Whenever required for
inventory or other
purposes
Immediately after
cylinder is filled
Immediately after vat is
filled for cold bath
Whenever required
Preferred
Sampling
Method
Bottle or beaker
sampling
Bottle or beaker
sampling
Bottle or beaker
sampling
Tap sample
Bottle or beaker
sampling
Tube sample
Random
sampling in
accordance with
Table 2
Type of Sample
Composite of upper,
middle and lower
samples
All-levels sample
Composite of upper,
middle and lower
samples
Tap sample
All-levels sample
Size of Sample to
be Taken from
Each Container
1 gallon (4 L)
1-3 gallons (4-12 L)
depending on size of
tank
1-3 (4-12 L) gallons
depending on size of
tank
1 gallon (4 L)
1 gallon (4 L)
Additional Instructions
Tube sample
1 quart (.25 L)
Whenever required
Random sampling
Entire contents of can
Bins or freight cars
containing loose solids
Preferably during
unloading
Grab sampling
Grab sample
0.1 percent of total
but not less than 50
nor more than 1,000
pounds
Commensurate with
size of thief used
Bags, drums or barrels
containing solids
Whenever required
Solids thief
sampling
Thief sample
Prepare composite sample in
accordance with 2.5. Select
cans at random in
accordance with Table 2.
Prepare composite sample in
accordance with 2.5. Select
cans at random in
accordance with Table 2.
Follow appropriate
instructions in 2.4 depending
on whether container is
being sampled before or
during unloading.
Following instructions in
2.3.2 select number of bags
or barrels to be sampled as
indicated in Table 2.
METHODS FOR SAMPLING WOOD PRESERVATIVES Page 4 of 6 © 2015 Table 3 - Sampling of Creosote and Creosote Solutions1 Sampling, Treating, or Storage to be Sampled Ship and barge tanks Time of Sampling Immediately after loading or prior to unloading Immediately after loading or prior to unloading Whenever required for inventory or other purposes Whenever required for inventory of other purposes Immediately after cylinder is filled Immediately after vat is filled for cold bath Preferred Sampling Method Bottle or beaker sampling Type of Sample All-levels sample Size of Sample to be Taken from Each Container Approximately 5 gallons (20 L) Tank cars and tank trucks Bottle or beaker sampling Composite of upper, middle and lower samples 1 gallon (4 L) Vertical storage and working tanks Bottle or beaker sampling All-levels sample 1-3 gallons (4-12 L) depending on size of tank 1 -3 gallons (4-12 L) depending on size of tank Horizontal storage and working tanks Pressure treating cylinders Nonpressure treating vats Bottle of beaker sampling Composite of upper, middle and lower samples Additional Instructions Gauge free water separately if creosote is not agitated thoroughly. Gauge free water separately if creosote is not agitated thoroughly. Use Table 1 to determine proportion of sub- samples in composite sample. Gauge free water separately if creosote is not agitated thoroughly. Gauge free water separately if creosote is not agitated thoroughly. Use Table 1 to determine proportions of sub-samples in composite sample. Tap sample Bottle or beaker sample Tap sample All-levels sample 1 gallon (4 L) 1 gallon (4 L) 1 When the sample is taken the temperature of the material should be at least 150° F and the material should be completely liquefied and thoroughly agitated. Table 4 - Sampling of Oil-Borne and Water-Borne Preservatives (In Solid State, Concentrated Solutions, or Ready-to- Use Solutions) Shipping, Treating or Storage Containers to be Shipped Tank cars and tank trucks Vertical storage and working tanks Horizontal storage and working tanks Pressure treating cylinders Nonpressure treating cylinders Drums or cans of 5 gallon capacity or larger containing liquids Cans of less than 5 gallons capacity containing liquids Time of Sampling Immediately after loading or prior to unloading Whenever required for inventory or other purposes Whenever required for inventory or other purposes Immediately after cylinder is filled Immediately after vat is filled for cold bath Whenever required Preferred Sampling Method Bottle or beaker sampling Bottle or beaker sampling Bottle or beaker sampling Tap sample Bottle or beaker sampling Tube sample Random sampling in accordance with Table 2 Type of Sample Composite of upper, middle and lower samples All-levels sample Composite of upper, middle and lower samples Tap sample All-levels sample Size of Sample to be Taken from Each Container 1 gallon (4 L) 1-3 gallons (4-12 L) depending on size of tank 1-3 (4-12 L) gallons depending on size of tank 1 gallon (4 L) 1 gallon (4 L) Additional Instructions Tube sample 1 quart (.25 L) Whenever required Random sampling Entire contents of can Bins or freight cars containing loose solids Preferably during unloading Grab sampling Grab sample 0.1 percent of total but not less than 50 nor more than 1,000 pounds Commensurate with size of thief used Bags, drums or barrels containing solids Whenever required Solids thief sampling Thief sample Prepare composite sample in accordance with 2.5. Select cans at random in accordance with Table 2. Prepare composite sample in accordance with 2.5. Select cans at random in accordance with Table 2. Follow appropriate instructions in 2.4 depending on whether container is being sampled before or during unloading. Following instructions in 2.3.2 select number of bags or barrels to be sampled as indicated in Table 2.
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