This standard was last reviewed and confirmed in 2018. Therefore this version remains current.
Specifies requirements for two grades. Grade 1 (synthesis grade) is a high quality grade normally required only for the use as a chemical feedstock. Grade 2 (ordinary grade) is suitable for most normal commercial uses. The requirements are given in a table.
Buy this standard
|std 1 40|
|std 2 40||Paper|
A standard is reviewed every 5 years
Stage: 90.60 (Under review)
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