MSDS of Tungsten Bar(b)

HEALTH HAZARD DATA

 Routes of Exposure: Production and applying process might bring about dust of potentially hazardous ingredients, which can be  inhaled, swallowed or come in contact with the skin or eyes.

 Effects of Overexposure:
 Inhalation - Dust from grinding can cause irritation of the nose and throat. It has also has the potential for causing transient or  permanent respiratory disease, including occupational asthma and interstitial fibrosis, in a small percentage of exposed  individuals. It is reported that cobalt dust is the most probable cause of such respiratory diseases. Symptoms include  productive cough, wheezing, shortness of breath, chest-tightness and weight loss. Interstitial fibrosis (lung scarring) can lead  to permanent disability or death. Certain pulmonary conditions may be aggravated by exposure.
 Skin Contact –Can cause irritation or an allergic skin rash due to cobalt sensitization in case tungsten be used in production  process. Certain skin conditions, such as dry skin, may be aggravated by exposure.
 Eye Contact - Can cause irritation.
 Ingestion - Reports outside the industry suggest that ingestion of significant amounts of cobalt has the potential for causing  blood, heart and other organ problems.

 Emergency and First Aid Procedures: Applicable for dusts or mists.
 Inhalation - If symptoms of pulmonary involvement develop (coughing, wheezing, shortness of breath, etc.), remove from  exposure and seek medical attention.
 Skin Contact - If irritation or rash occurs, thoroughly wash affected area with soap and water and isolate from exposure. If  irritation or rash persists, seek medical attention.
 Eye Contact - If irritation occurs, flush with copious amounts of water. If irritation persists, seek medical attention.
 Eye Contact - If irritation occurs, flush with copious amounts of water. If irritation persists, seek medical attention.

 Carcinogenic Assessment (NTP Annual Report, IARC Monographs, other):
 None of the components of this material have been identified as known suspected carcinogens by NTP, IARC or OSHA

 Chemical Name:
 Tungsten and tungsten material, tungsten-nickel-copper or tungsten-nickel-iron heavy alloy.


tungsten-bar


Tungsten Alloy Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-alloy.com
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Email: sales@chinatungsten.com
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How to Use a Dart in Practicing?

There are some several suggest for dart practice:

In nearly all settings, a shared set of darts is used, rather than every competitor having their own darts. So if you were to retrieve the darts you just threw, all you would then do is immediately hand them to the next player. With that in mind, it is simply quicker for the incoming shooter to remove the darts from the board, rather than the awkward process of the preceding shooter removing them, then (carefully) passing a handful of three sharpened steel darts to the next player.

The next player can view and verify the score of the preceding player. This eliminates the need for a scorekeeper to stand near the board.

Dart maintenance supplies (like a potato, for moistening the dart tips, or a sharpening stone) are often kept at the board. Thus requiring every player to go the board before they throw rather than after, allowing him or her prepare quickly in the darts practical.

Tungsten Alloy Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-alloy.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
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Strikeout Dart Rules

The key rule of Strikeout is that the first dart to land in the 20-number scoring area sets that shooter's "number" for the remainder of the inning. Once that number is set, that number is the only number that can be scored for the remainder of the inning (with the exception of the center cork, which is always in play, regardless of the set "number"); the other nineteen numbers on the board are worth zero points for the remainder of the shooter's inning. So if a player throws his or her first dart at 20, in order to score the maximum possible points, but he or she misses and it lands in the 1 area, that player has established 1 as their number for darts #2 and #3. Thus, even if the last two darts were to land in 20, they would be scored as zero. Once a player establishes a poor number, the best strategy for the remainder of the inning is to just shoot at the 100-point cork, since even three darts in triple 1 would score only nine points. If the first dart does not land in one of the 20 scoring numbers (either misses the board completely, or hits the 100-point cork), the "number" is not yet established for that inning, and the shooter is still free to score in any of the 20 numbers on the second dart (likewise for dart #3, if both darts #1 and #2 do not land in any of the 20 numbers).

Since the first dart sets the number, players will sometimes shun shooting at the 20, since a small miss will result in either a 1 or a 5 being set as the number. Often two adjacent numbers with solid values, such as 11/14 and 10/15 are chosen by lower-skilled players, since a small miss there does not result is such a large penalty (if you miss the 14 you'll still land in the 11, etc.).

The maximum score in an inning is 300 points (3 corks). The maximum score for a team (two players) is 600 points. Corks and scoring numbers can be combined; for instance, if a player shoots a double 20, a cork, and a single 20, that player would score 160 points (40 + 100 + 20). If a player shoots a single 20, a double 5, and a single 20, that player would score 40 points (20 + 0 + 20), since the dart in the 5 would not count (20 having been established as the "number" for that inning).

 

Tungsten Alloy Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-alloy.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
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General Scoring Rules

The thin wires separating the scoring sections on the board occasionally overlap slightly, due to the manufacturing process. Any dart splitting the wires (landing in the tiny area where two wires overlap) is credited in the shooter's favor. For example, if the dart splits the wires separating the two and three point zones, the player is awarded three points. If the dart splits the wires separating the three point zone and the blue ring, the player is credited with three points.

Since the shafts of the darts are made from wood, and the tips are sharpened metal, it is possible for a dart to stick into the shaft of a previously thrown dart. The scoring of any dart is determined by where the tip of the dart lands, and since the tip of this dart is not in the board, the dart that is stuck in the barrel of another scores no points at all. It is considered the same as if it missed the board.

 

Tungsten Alloy Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-alloy.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
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The Different Weight of Soft Tip Darts

Soft tip darts are different; you will need to check with your local leagues for the weight requirements. At the time of this posting, 16 grams darts seem to be a safe bet no matter where you are throwing. You can get a heavier soft-tip dart, but some leagues and tournaments may ban them due to the construction or restraints of the machines that are being used. An opponent can challenge the weight of your dart if is too heavy.

Tungsten Alloy Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-alloy.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
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