Recommended test current

The zener diode used for this simulation is used in its soft region, which means that it is used below its recommended test current. This region is often not defined in data books, and may not be correctly... 

Brass, bronze, steel, phenolic, acetal, and nylon (natural) had been used with various degrees of success. A specially formulated cast polyamide was recommended, tested, and designed into the function. The part is currently offering a longer wear life, with less moisture pick-up and greater ease of installation. 

Whole animal testing resources are too limited to be applied to large numbers of chemicals and they are expensive and time consuming as well. It Is recommended that current bloassay methodology be systematized to evaluate the many chemicals now In use or being developed. 

Fracture toughness specimens are sometimes contained in some older capsules, although the types of specimens are not always those recommended by current ASTM test methods. For example, the wedge-open loading (WOL) specimen was used in some early capsules since it is somewhat similar to the compact tensile (CT) specimen, it can be tested in a modified form to generate fracture toughness data. Converting Charpy V-notch... 

Probably as a result of the dependence of the yields of the radiolysis products on the specific characteristics of the experiments, in particular the composition of the test solution, results obtained from different experimental runs frequently show considerable scatter and also may differ from the results of calculations. A critical evaluation of relevant experiments and a recommendation of currently best results has been given by Weber et al. (1992). 

Eye protection is usually selected purely on the basis of the type of hazard or combination of hazards present in the workplace. A complete survey of the workplace is advisable in order to identify all work practices where there is a risk of eye injury. The Protection of Eyes Regulations, 1974 specify work practices for which eye protection is mandatory or recommended, and many conservation processes fall into this category. The HSE have produced certificates of approval (Parts One and Two) for the eye protectors required under these regulations. The certificates of approval are based on the current British Standards for various types of eye protectors. The British Standard BS2092 defines recommended tests to evaluate the effectiveness of eye protectors against... 

The following tests are recommended on a finished voltage or current tran.sformer ... 

Tests carried out in seawater over the current density range 30 to 190 Am showed the consumption rate to be dependent upon current density, increasing from 1-4 to 4g A y over the current density range studied (with the recommendation that to achieve the required life, the current density should not exceed 115 Am ) ... 

US Mil Spec JAN-C-99 (Ref 4) contains the requirements for each ingredient of rC, including a viscosity test for the finished PC as well as std tests for the ingredient under several Fed Specs. However, some of these Fed Specs are outdated and are currently being replaced. A recent PATR (Ref 8) made recommendations to update JAN-C-99... 

The quantitative measurement of toxicity level is expressed by parameters like NOEL (no observed effect level), NOAEL (no observed adverse effect level), and ADI (acceptable daily intake). The NOEL values are divided by 100 to obtain ADI values. The 100 safety factor derives from 10 x 10, where the 10s represent the animal-to-human conversion rate and the human variability factor. Currently, the most useful index of safety is the ADI, expressed as milligrams of test substance per kilogram of body weight (ppm), with the recommendation not to eat more than the ADI per day. The FDA, EU, and WHO agree on the ADI principle. 

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