Is Standard For Cobb Test?
The Cobb Test is carried out according to the following standards: ISO 535, EN 20535 and TAPPI T 441.
What is a good Cobb value?
Cobb values for liner grades are typically specified as being Target 100g/m2 up to a Maximum of 150g/m2, which means they are moderately chemically sized, and this applies across a broad range of paper weights possibly from 100g/m2–440g/m2.
What should be Cobb value paper?
The COBB value has to be maintained as per the need of paper or board. This test procedure includes a quantity of water absorbed in a specified time by no bibulous paper and paperboard with a minimum 0.1 mm thickness.
What is unit of Cobb value?
The Cobb test determines the amount of water absorbed into the surface by a sized (non-bibulous) paper, paperboard, and corrugated fibreboard paper or paperboard sample in a set period of time, usually 60 or 180 seconds (Cobb60 or Cobb180). Water absorbency is quoted in g/m2.
What does Tappi standard t441 measure?
Scope. TAPPI T 441 Cobb Test describes a procedure for determining the quantity of water absorbed by nonbibulous paper, paperboard, and corrugated fiberboard in a specified time under standardized conditions. It is based on studies by Cobb and Lowe, Cobb and other investigators.
What is the base of Cobb?
Cobb salad
| Type | Salad |
|---|---|
| Region or state | California |
| Created by | Hollywood Brown Derby restaurant |
| Main ingredients | Salad greens (iceberg lettuce, watercress, endive, Romaine lettuce), tomatoes, bacon, chicken breast, hard-boiled eggs, blue cheese, red-wine vinaigrette. |
| Media: Cobb salad |
Why do we do Cobb test?
The direct Coombs test is used to detect antibodies that are stuck to the surface of red blood cells. Many diseases and drugs can cause this to happen. These antibodies sometimes destroy red blood cells and cause anemia .
What is tear factor of paper?
The tear strength of paper means the resistance of a paper sheet to tearing force that it is subjected to. It is another important basic physical property of paper and paperboard. It is measured in both machine direction (MD) & cross direction (CD) and expressed as mN (mili Newton).
How do you check Cobb of kraft paper?
Take the sample out carefully and use the roller to extract the extra amount of water. Weigh the sample. Now subtract the dry weight from the wet weight, the value you have is the Cobb value of Kraft paper. This the amount of water the sample absorbed in a defined time period.
What is burst strength of paper?
Bursting strength or burst resistance is a property of a plastic, paper or corrugated board -used in packaging- and is general a guide to the strenght of that plastic, paper or corrugated board. With a burst tester you define the pressure needed to burst a plastic, paper or paperboard.
What is Cobb index?
The Cobb value provides information about the water absorption capacity of cartonboard samples. The Cobb test determines the amount of water that is taken up by a defined area of cartonboard through one-sided contact with water, within a certain amount of time.
What is the use of Cobb?
Cobb sizing tester determines the amount of water or any liquid absorbed by the paper, corrugated fibreboard, and paperboard in a given period of time under some conditions. Water absorptiveness is a function of various characteristics of paper or board such as porosity, sizing, etc.
Who invented Cobb test?
In the 1950s, the Strong-Cobb tester was introduced. It was patented by Robert Albrecht on July 21, 1953. and used an air pump.
What is TAPPI standard?
1 TAPPI Standard Test Methods are testing procedures and related practices used in the measurement, evaluation, and description of pulp, paper, packaging, and related products, including raw materials used in their manufacture, use, or in scientific investigations of any such substances.
What is a TAPPI number?
This label identifies each roll using a numbering system, or TAPPI Roll Identifier to assure that all US paper mills use a common language. A TAPPI Roll identifier is as unique as a social security number; no 2 rolls should ever have the same identifier assigned.
What does TAPPI chart stand for?
It was founded in 1915 as the Technical Association of the Pulp and Paper Industry. TAPPI provides a forum for the professionals involved in the industry. It publishes articles, standards, and books, conducts events for peer-reviewed information relevant to the industry and offers scholarships.
How many heat beads in Cobb?
GOOD QUALITY CHARCOAL BRIQUETTES: Use between 6 & 15 briquettes. For more heat use up to 15 briquettes. For baking use only 4-8 briquettes and keep the dome shaped lid on at all times in order to keep the heat in.
Why is it called Cobb?
Cobb salad received its name from a restaurant owner named Robert Cobb. After a long night of service, Chef Cobb was tired and hungry at the Brown Derby in Hollywood, CA. He threw together a bunch of leftover ingredients into a bowl with lettuce and tossed them together with French dressing.
How do you clean a Cobb?
Wash in a soapy water solution with a sponge or cloth after use. Do not use abrasive agents when cleaning the non-stick surface. Once ready to cook (refer to fuelling your Cobb), place the grill grid on top of the inner sleeve.
What Cobb angle is significant?
A Cobb angle in the range of 10 to 20 degrees is considered as mild scoliosis. Scoliosis severity is moderate when the Cobb angle ranges from 20 to 40 degrees. A Cobb angle greater than 40 degrees denotes severe scoliosis.
How do you read a Cobb angle?
Cobb Angle X-Ray and Interpretation
To interpret your X-rays, a line is drawn along the edge of the top and bottom bones of the curve. These lines are extended out. On the top bone, the line starts at the high side, is drawn along the top edge and slopes downward according to the angle of the vertebra.
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