apparatus listed in 2540B2a-h is required, and addition:
a. Glass-fiber filter disk* without organic binder.
b. Filtration apparatus: One of the following , suitable for the filter disk selected:
1. membrane filter funnel.
2. Gooch crucible ,25 ml to 40 ml capacity, with Gooch crucible adapter.
3. filtration apparatus with reservoir and coarse (40-60 um) frited disk as filter support.
c. Suction flask, of sufficient capacity for sample size selected.
d. Drying oven, for operation at
apparatus listed in 2540B2a-h is required, and addition:a. Glass-fiber filter disk* without organic binder. b. Filtration apparatus: One of the following , suitable for the filter disk selected:1. membrane filter funnel.2. Gooch crucible ,25 ml to 40 ml capacity, with Gooch crucible adapter.3. filtration apparatus with reservoir and coarse (40-60 um) frited disk as filter support.c. Suction flask, of sufficient capacity for sample size selected. d. Drying oven, for operation at
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