Biodiesel Experts International has teamed up with Saybolt Laboratories(Click here to see ISO9001) to provide our customers with FAST ASTM testing results.
This process is FAST and SIMPLE.
Once you proceed with checkout with an ASTM D-6751 08-a testing slate you will be able to
download a form that you send with your ONE (1) gallon sample to the provided address on
the form.
Once received at
Saybolt the testing results will be to you within only 2-3 business days! FAST!
PRODUCT: BIODIESEL (ASTM D-6751)
Calcium & Magnesium
(EN 14538)
Flash Pont (ASTM D-93)
Water & Sediment (ASTM D-2709)
Viscosity (ASTM D-445)
Sulfated Ash (ASTM D-874)
Sulfur (ASTM D-5453)
Copper Corrosion (ASTM D-130)
Cetane Number (ASTM D-613)
Cloud Point (ASTM D-2500)
Carbon Residue (ASTM D-4530)
Acid Number (ASTM D-664)
Cold Soak Filterability
Total and Free Glycerin
(ASTM D-6584)
Phosphorus Content (ASTM D-4951)
Sodium & Potassium
(EN 14538)
Vacuum Distillation (ASTM D-1160)
Oxidation Stability (EN
14112)
In the past few years we have seen the
inspection & testing industry undergoing significant changes, many
attributable to the requirements of ISO 9000. However the essentials of
the inspection & testing business have remained the same; an inspection
company operates to provide accurate and, as importantly, timely
information. In dynamic and fluctuating commodity markets it is obvious
that the speed with which we deliver fast and accurate inspection & testing
details to the client is a pivotal role.
Saybolt, as a "leading edge"
inspection company, will therefore concentrate on maximizing the speed of
reporting, whilst safeguarding quality, to become the world leader in providing
our customers with not only the best, but also the quickest, service.
Were Fast is our motto, and therefore a
key element in Saybolt's operations. We are confident that our profile will
bring added value in today's market, and will assist all our clients in the
achievement of their corporate objectives and goals.
Free & Total
Glycerin: Perhaps the most important test for biodiesel is the measure
of glycerin content. The key reaction in biodiesel production,
transesterification, involves converting oils and fats to fatty acid methyl
esters (FAME). Glycerin is the major byproduct and is higher
in density and more polar than the FAME. Glycerin may be present in free form, and
bonded, (mono, di and triglycerides). Measurement of both is necessary to
determine how the conversion reaction proceeded.
For producers: high glycerin content indicates the
reaction has not proceeded to completion, or your driver and /or catalyst is
weak (wrong concentrations).
For Distributors/End users: high glycerin may
separate out in storage, plugging pumps and filters. It can also contribute to
dirty injectors, thus causing poor combustion conditions.
Phosphorus,
Potassium, Sodium, Calcium, Magnesium by Spectrometric Analysis:
Technique for detecting and quantifying metallic elements in a fuel resulting
from, contamination, soap formation or additives. The fuel sample is energized
to make elements emit or absorb a quantifiable amount of energy, which
indicates the element's concentration in the fuel.
For Distributors/End users: Phosphorus can poison
catalytic converters, rendering them ineffective. It can also create hard
deposits on piston crowns, valves and injectors, affecting the engine
performance and reliability. Sodium and Potassium may form abrasive solids or
metallic soaps which may cause abrasion and filter plugging. Calcium and
Magnesium metals clog particulate traps which will be used with ULSD.
Cloud and Pour
Point: Defined as the lowest temperature at which wax crystals begin
to form in the fuel. Pour point is the temperature at which the fuel ceases to
flow.
For Producers/Blenders: B100 has a cloud and pour
point of 32F and 25F respectively. High values may indicate additives are not
present to lower the cloud and pour, or not present in the desirable
concentrations. Alternatively, the blending with #1 or #2 diesels needs to be
increased.
Cold Soak
Filtration Analysis: The time in seconds it takes for cold soaked biodiesel
to pass through two 0.8 micron filters and the amount of particulate matter
expressed in mg/l collected on the filter.
For Producers/Blenders: Poor filtration can be
related to choice of feedstock, as well as incomplete glycerin removal during
processing. It may also indicate the B100 product was subjected to low
temperatures (below pour point). It is not sufficient to warm to ambient-
product must be heated to 100F to liquefy all molecules present.
For Distributors/End users: High filtration times
indicate the potential for fuel filter plugging. In freezing climates, consider
heat trace on storage tanks, blend and piping equipment. End users may look to
install heated filter housings.
Viscosity:
The resistance of a fluid to flow. Fuels must have suitable flow
characteristics to insure that an adequate supply reaches injectors, at
different operating temperatures.
For Producers/Blenders: Verify that the
transesterification reaction has proceeded properly. The glycerin content may
be elevated and flash point high. Reprocess the batch.
For Distributors/End users: High viscosity can cause
fuel flow problems, and lead to stall out, or fuel pump failure.
Total Acid
Number: A titration method designed to indicate the relative acidity
in a feedstock. It is a particularly good indicator of the level of free fatty
acids (FFA) present in biodiesel, as well as the presence
of process acids and degradation by products.
For Producers/Blenders: High Acid values on your
feedstock indicates unrefined or poorly refined product. Typical problems would
be poor process control, such as methanol carryover, when converting the oils
and fats to FAME fuel.
For Distributors/End users: High Acid number fuel
can have a strong solvency effect on rubber seals and hoses in the engine,
thereby causing premature failure. It may also leave deposits, which can clog
the fuel filter or drop fuel pressure.
Flash Point:
The lowest temperature at which the vapor of a combustible liquid can be made
to ignite momentarily in air. The flash point of a fuel infers to the
ignitability of the fuel.
For Producers/Blenders: A low flash point can
indicate residual methanol remaining from the conversion process. A high flash
point can mean the reaction has not proceeded to completion.
For Distributors/End users: A low flashpoint in
biodiesel can result in premature ignition, causing irregular timing, excessive
fuel blow by into the crankcase oil, and excessive emissions. A high flash
point can lead to poor ignition, resulting in inconsistent firing, and variable
engine performance. It can also indicate potential clogging of fuel lines,
filters and injector clogging in cold climates.
Water &
Sediment: Though water is always present in fuel, it is important to
control its content. Bottoms sediment and water is where the biodiesel is
centrifuged vigorously to separate out free water and any trace sediment
present in the fuel. Water can be detected visually if gross contamination is
present (cloudy appearance). The Karl Fischer method is used for moisture
contamination down to levels of 10 ppm (.001%). BTS recommends the Karl Fischer
method.
For Producers/Blenders: Excessive water may indicate
water wash/removal process is not performed correctly.
For Distributors/End users: Improper storage may be
the reason, and poor ignition, filter clogging, fuel pump problems can be the
result. If sediment is present, replace the fuel filter cartridges.
Sulfur:
A common contaminant in fuel. Sulfur in fuel leads to sulfur oxides being
produced as exhaust gases, which can harm the environment, and as acids in the
engine crankcase, which will attack the lubricant. Biodiesel will have little
to no sulfur present, making it a great emissions reduction fuel. Some sulfur
is desirable in refined petroleum based diesel as it provides lubricity for the
fuel pump. Biodiesel fulfills that function with the free fatty acids present.
For Producers: If sulfur is present, check the
source of the feedstock to make sure it is not hydrocarbon based.
For Distributors/End users: High sulfur leads to
emissions problems.
Distillation:
A method for determining the full range of volatility characteristics of a
hydrocarbon liquid by progressively boiling off a sample under controlled
heating. Different methods are available for distillation: atmospheric, vacuum,
and simulated.
Biodiesel is fundamentally different than petroleum based diesel, and it is
especially evident with distillation. Biodiesel has a fairly homogenous
consistency of straight chain hydrocarbons, all with 16 to 18 carbons.
Consequently it exhibits a boiling point rather than a distillation curve.
For Producers: High distillation values may indicate
the conversion reaction has not gone to completion, (flash point may also be
high). Low values indicate methanol carryover.
For Users: High distillation values lead to poor
starting, especially in cold weather; low values can lead to poor timing and
seal material failure.