This document provides the product specification for liquid sulfur from Saudi Aramco. It lists tests for free sulfur content, inorganic ash, carbon, hydrogen sulfide concentration, and levels of arsenic, selenium, and tellurium. It guarantees a minimum of 99.80% free sulfur and maximum levels of 0.05% for ash and carbon. The hydrogen sulfide concentration in fumes must be less than 15 ppm. Arsenic, selenium, and tellurium levels must each be less than 1 ppm. The temperature range for delivery is between 140-155 degrees Fahrenheit.

1. ***SAUDI ARAMCO PRODUCT SPECIFICATION*** NUMBER: A-101
ISSUE DATE: 03/10/98
REPLACES: 06/05/95
LIQUID SULFUR PAGE NO.: 1 OF 1
TEST GUARANTEE METHOD*
Free Sulfur (dry basis), wt % Min 99.80 Determination of sulfur
Inorganic Ash, wt % Max 0.05 Ash
Carbon**, wt % Max 0.05 Carbon by the combustion method
H2S Concentration (fumes) Less than 15 ppm H2S Draëger Tubes
Arsenic  Less than 0.25 ppm Selenium, Tellurium and Arsenic
Selenium  Less than 1 ppm Selenium, Tellurium and Arsenic
Tellurium  Less than 1 ppm Selenium, Tellurium and Arsenic
Temperature Range, °F (°C) 284-311
(As delivered to the customer's (140-155)
vehicle)
* The methods listed appear in "Standard Method of Chemical Analysis" 6th Edition, New York:
Robert E Kreiger Publishing Co, Volume 1, pp 1038-1050.
** Tested weekly.
 Tested annually, but tests can be done at the expense of the buyer, if requested.
5-463-2008
August 5, 2008-08-05
TAZ/MAB: taz