4. Analysis
- Why are specific test methods stipulated in the Sulphur in Diesel Fuel Regulations?
Test methods are specified in order to provide certainty and consistency in the enforcement of the regulations.
- What happens if a test method is amended?
Any amendment to a test method is automatically incorporated into the regulations (refer to subsection 1(2)).
- Why is the test method changed from CAN/CGSB-3.0 No. 16.0-95 to ASTM D 5453-00 after December 31, 2003?
ASTM D 5453-00 has increased accuracy for lower sulphur levels. This was recommended to Environment Canada by the CGSB.
- In 2003, CAN/CGSB 3.0 No. 16.0-95 is the test method identified for compliance purposes. CAN/CGSB 3.0 No. 16.0-95 yields results in percent by weight. The limits in Section 3 of the regulations are specified in mg/kg. How does one convert from percent by weight from CAN/CGSB 3.0 No. 16.0-95 to mg/kg?
Results obtained from CAN/CGSB - 3.0number 16.0 - 95 method can be converted arithmetically by multiplying them by 10,000 and reporting the result in mg/kg, with 2 significant digits.
- How do I get copies of the test methods?
The methods can be purchased from the Canadian General Standards Board (CGSB):
CGSB Sales Centre
Ottawa, Canada
K1A 1G6
www.pwgsc.gc.ca/cgsbor from the American Society for Testing and Materials (ASTM):
ASTMInternational
100 Barr Harbor Drive
PO Box C700
West Conshohocken, Pennsylvania
USA
19428-2959
www.astm.org