astm d422 - withdrawn!
astm d422 - withdrawn!
(OP)
Just heard. Can't quite believe! Checked it out myself and it seems true.
Anybody out there know what's going on? Is there a new standard citation?
f-d
Anybody out there know what's going on? Is there a new standard citation?
f-d
ípapß gordo ainÆt no madre flaca!





RE: astm d422 - withdrawn!
RE: astm d422 - withdrawn!
See further discussion
thread261-404342: D422 withdrawin
RE: astm d422 - withdrawn!
My post to the thread referenced by cvg is still my opinion.
"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.".
We are all to be legalists and worry about every little thing. Glad I am semi-retired.
RE: astm d422 - withdrawn!
ASTM WK38106
New Test Method for Particle Size Anaylsis For Soils Combining The Sieve and Sedimentation Techniques
Developed by Subcommittee: D18.03 | Committee D18
WK38106
1. Scope
This test method covers the quantitative determination of the distribution (gradation) of particle sizes in soils. For particles larger than 0.075 mm (No. 200) sieve, the particle-size (gradation)distribution is determined by sieving. The particle-size (gradation) distribution for particles smaller than 0.075 mm (No. 200) sieve is determined by the sedimentation process. This method applies to soils in which both the coarse and fine fraction particle-size (gradation) distribution is desired.
This standard is needed to provide a standard in which specifiers can refer to when they want both a hydrometer and sieve analysis on a soil sample. The other two standards are specific to either the hydrometer analysis or the sieve analysis independent of each other. This new combined method allows for on how to perform the testing when both analyses are required on a soil sample.
RE: astm d422 - withdrawn!
Does it really matter when the next shovelful of earth from the same excavation is minutely different. We are dealing with SOIL.
RE: astm d422 - withdrawn!
Dik
RE: astm d422 - withdrawn!
RE: astm d422 - withdrawn!
RE: astm d422 - withdrawn!
I remember seeing a spoof soils manual, done by, IIRC, some students at Harvard. During one discussion they replaced a greek symbol with a Chinese one, "for clarity". I believe there were also instructions for large-scale Triaxial test that required a sacrificial technician.
Anyone else remember that? Anyone have a copy?
It probably dated form the 1960's or even the early-to-mid 1970's
RE: astm d422 - withdrawn!