callumwa
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- Jan 16, 2011
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- 4 yrs +, 30+ yrs motorbike touring
Don't forget the permanganate fading time! Fibre grade MEG and methanol were the worst. We used to carry PO on the gas ships under a nitrogen blanket; so glad I'm not at sea any more. One of my mates is old man on a VLGC - boring bus divers job Bonny to Futsu but good money.
PappaJohn, I see your point but some of those manufacturers specs are frighteningly similar to an API spec........ We do tests for engine makers as well.
Ah.....
Permanganate time tests... PTT.......
or PMT as I call them, we just do not have the gear on board to do them to the Lab specs of today.
Our PO is carried under nitrogen, purge tanks to less than 0.5% O2 now, adjacent empty spaces to less than 2%, before loading.
Hexene (C6), we now purge the tanks prior loading to less than 50 ppm O2, for cargo "quality" purposesoh:. We used to load it into coated tanks with just an N2 blanket........oh:
Same shit though, just like the oils, the producers spout ever exacting quality standards and specs, why, to increase profits and pretend they have an edge over the opposition.