|
LABORATORY TEST METHOD NO. H-10
SOLID CONTENT
1. PURPOSE:
To determine the amount of solids present in liquid specimen.
2. PRINCIPLE:
Test specimen is placed in a weighing dish and dried until all
moisture is removed.
3. REFERENCES:
Federal Test Method Standard No.191, Method 2601, Moisture
Content by Oven and Balance Method.
4. APPARATUS AND MATERIALS:
Mettler Scale Model No. AE200 Baxter Constant Temperature Oven,
Model DN-63, or equivalent. Aluminum Weighing Dishes
5. PROCEDURE:
5.1 Mark Weighing dishes then weigh to the nearest thousandth
of a gram and record as tare weight (A).
5.2 Pour approximately 5 to 8 grams of liquid in weighing
dish.
5.3 Weigh dish with" specimen to the nearest thousandth of
a gram. Record this weight as specimen plus tare dish weight
(B).
5.4 Place this dish in oven with temperature set at 88~
(190°F), and dry the specimen for 10 hours.
5.5 Remove dish from oven and weigh again to the nearest
thousandth of a gram and record as dry specimen plus tare dish
weight (C).
6. EVALUATION:
Using "the following formula calculate the percent of
solids and record the results:
A = Tare weight of dish
B = Tare weight of the dish plus specimen weight
C = Tare weight of the dish, plus the weight of the dry
specimen.
|
Net weight of the dry specimen |
|
| % Solids = |
________________________________ |
X 100 |
|
Net weight of the original specimen |
|
|
|
|
7. REPORT
Report the percent solids as an average of at least three
specimens.
_HARDLINES
TEST METHOD_
|
