ASTM F1632-99

STD.ASTM FLb32-ENGL 1999 m 07595110 Ob50753 229 m
Designation: F 1632 - 99
Standard Test Method for
Particle Size Analysis and Sand Shape Grading of Golf
Course Putting Green and Sports Field Rootzone Mixes’
This standard is issued under the fixed designation F 1632; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (E) indicates an editorial change since the last revision or reapproval.
3.1 Weighing Bottles or Beakers, glass with a capacity of
1. Scope
100 mL.
1 .I This test method covers the determination of particle
3.8 Sieves, square mesh with woven wire (brass or stainless
size distribution of putting green and other sand based root
steel). A full set of sieves shall include the following:
zone mixes. Particles larger than 0.05 mm (retained on a No.
3.8.1 No. 10-2 mm,
270 sieve) are determined by sieving. The silt and clay
3.8.2 No. 18-l mm,
percentages are determined by a sedimentation process, using
3.8.3 No. 35-500 pm,
the pipet method. This procedure was developed for putting
3.8.4 No. 60-250 pm,
green rootzone mixes; those assumed to have sand contents of
3.8.5 No. 100-149 pm,
80 % by weight or greater. Particle size analysis of soils may
3.8.6 No. 140-105 km, and
be performed by this test method or Test Method D 422. This
3.8.7 No. 270-53 km.
test method also describes a qualitative evaluation of sand
3.9 Sieve Shaker, type that provides vertical tapping action
particle shape.
as well as horizontal shaking.
1.2 This standard does not purport to address all of the
3.10 Desiccator.
safety concerns, if any, associated with its use. It is the
3.11 Dispersing Agent, a 5 % sodium hexametaphosphate
responsibility of the user of this standard to establish appro-
(HMP) solution, made by dissolving 50 g of reagent or
priate safety and health practices and determine the applica-
technical grade HMP in 1000 rnL of distilled or demineralized
bility of regulatory limitations prior to use.
water.
2. Referenced Document 3.12 Oven, capable of maintaining a temperature of 105°C.
3.13 Water, shall be distilled or demineralized, and brought
2.1 ASTM Standard:
to the temperature that is expected to prevail during the
D 422 Test Method for Particle-Size Analysis of Soils’
sedimentation process. If air temperatures are expected to
3. Apparatus
fluctuate, cylinders should be placed in a constant temperature
water bath, and the distilled or demineralized water brought to
3.1 Balance, sensitive to 0.001 g.
the temperature of the water bath.
3.2 Stirring Apparatus, may be either of the following
3.14 Dissecting Microscope, 25 to 50X power.
types:
3.2.1 For Method A-An Electric Mixer, made for mechani-
TEST METHOD l-PROCEDURE FOR PARTICLE
cal mixing of soils, or
SIZE ANALYSIS
3.2.2 For Method B-A Horizontal Reciprocating Shaker,
with holder for 250 mL flasks or bottles.
4. Procedure
3.3 Sedimentation Cylinder, a glass cylinder marked for a
4.1 Dispersion of Sample:
volume of 1000 mL. The height of the 1000 mL must be
4.1.1 Weigh 100 ? 5 g of air-dried rootzone mix to the
36 ? 2 cm from the bottom on the inside.
nearest 0.1 g and place in mixing cup (Test Method A) or flask
3.4 Thermometer, accurate to OS’C.
(Test Method B). Place a duplicate sample into a drying oven
3.5 Pipet Rack, a device for lowering a pipet to a precise
set at 105°C for correction to oven dried basis.
depth in the sedimentation cylinder.
4.1.2 Add 100 mL of dispersing agent. Stir or swirl until the
3.6 Pipets, Lowy or other wide tipped type, 25 mL capacity.
rootzone mix is thoroughly wet. Allow to stand for 4 h. If using
Test Method B, place the flasks or bottles on the shaker and
shake for 16 h or overnight.
’ This test method is under the jurisdiction of ASTM Committee F-8 on Sports
Test Method A-Add about 100 mL of water to the
Equipment and Facilities and is the direct responsibility of Subcommittee F08.52 on 4.1.3
Playing Surfaces and Facilities.
mixing cup and place onto the mixer. Mix for 5 min on low
Current edition approved May 10. 1999. Published August 1999. Originally
speed.
published as F 1632 - 95. Last previous edition F 1632 -98a.
4.2 Determination of the Sand (2.0 to 0.05 mm) Fractions
zAnr~ua/ Book of ASTM Srundords, Vol 04.08.

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STD.ASTM Fl1632-ENGL It799 W 0759530 0650754 165 -
@b F 1632
TABLE 1 Settling Velocities and Settling Times (at lo-cm depth)
and Gravel (material >2 mm):
for 5 g/L HMP Solutions and Particle Density of 2.65 g/cc when
4.2.1 Place a tared No. 270 sieve onto a large funnel held by
Sampling for Clay (<2 microns) at Various Temperatures
a stand over a sedimentation cylinder. Pour the suspension onto
Temperature, Settling Velocity,
the sieve. Rinse remaining sand material out of the cup
...