ASTM D422 was withdrawn, I assume it will be re-approved soon and so continue to specify using the most recent version I can't find any information on why it was not re-approved in a timely manner. Anybody know why?
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D422 withdrawin
- Thread starter cvg
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New standards. The one for sampling and sieve testing will boggle your mind. Until you dive into the new standard for hydrometer tests. I understand the limitations of the old D 422, but I question the trying to 'legislate' every possible condition or trying for excess accuracy when it is really not needed. But my father was complaining about this sort of thing back in the 80's when he was on the committees.
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the old standard has served us well for 53 years, does it really need to change? I am not particularly concerned with a new hydrometer test, most of the soils I deal with are granular and characterization of the fraction below #200 is not done much.
so is there a draft standard in the works to replace it? and when? and can the draft be reviewed? i know, lots of unknowns, but in the meantime, it is withdrawn and no replacement yet.
so is there a draft standard in the works to replace it? and when? and can the draft be reviewed? i know, lots of unknowns, but in the meantime, it is withdrawn and no replacement yet.
Guess you could use, for coarse grained soils (no hydrometer) C136. Or, in a pinch, substitute BS 1377 Part 2, Section 9 - although this, too, might be outdated given European Norms (EN). Something similar happened a number of years back when they didn't renew the Marshall Test on time . . .
cvg....apparently committee oversight. They have eight years to change, reapprove or officially withdraw/replace a standard. Looks like this one hit the "sunset" rule. It should come back quickly as there are legal implications for such prominent standards being gone with no clear replacement.
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- #6
When the balloting came around, that is what I understood. The sampling, sample sizes and things that used to be taught to the techs, was to be accurately defined. We are all to be legalists now. The hydrometer, which I use A LOT (dispersive-like soils & such) wasn't accurate enough, supposedly.
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- #8
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