Underwriter’s laboratories

CAL = California MVSS = Motor Vehicle Safety Standard UL = Underwriter s Laboratory. 

UL Underwriter s Laboratories Z-twist twisting fiber direction... 

Underwriter s Laboratories Inc. (UL), UL 886. Safety Outlet Boxes and Fittings for Use in Hazardous (Classified Locations. Tenth Edition, UL, Northbrook, IL, 1994. 

Underwriter s Laboratories Classification (uic). This is a standard classification for grading the relative fire hazard of flammable liquids against the following standards ... 

Underwriter s Laboratories Subject 94 test. 6 Added to Blend 3 of Table III. 

The United States has two nationally accepted codes the National Fire Protection Association s Lightning Protection Code (ANSI C5. 1), and the Underwriter s Laboratories Master Labeled Lightning Protection System (Standard UL 96A). The requirements of these two codes are quite similar and are probably equally utilized on structures throughout the nation. The major difference between the two is that the Master Label can be certified upon both a factory inspection and labeling of the lightning protection materials and upon performance of a field inspection by an authorized inspector. 

Fire resistance rated wall assemblies are tested and listed by nationally recognized testing laboratories such as Underwriter s Laboratories, Wamock-Hersey or Factory Mutual. These listings are published in each organization s listing directory or approval guide. 

UL Listed listed by the Underwriter s Laboratory to indicate special construction requirements have been met. 

Class A - Optimum fire rating issued by Underwriter s Laboratories on roofing. The building codes in some areas require this type of roofing for fire safety. 

Underwriter s Laboratories (UL) during 2001 developed a standard for pallets. The new UL 2335 was created to classify plastic pallets to meet requirements of the recently revised National Fire Protection Assoc, standard NFPA 13. That change allows plastic pallets to be treated like wood pallets if test data indicate that the burning characteristics of the plastic pallets are equal or better than wood (UL telephone 847-664— 1508). 

Each national and international standards arganizatimi, government, and private industries from each country, listed above and others, use their own standard test methods for the evaluation of the products and materials. Consequently, there are literally thousands of standard test methods used on a worldwide basis [37-41], The national and international standards organizations list their test methods in catalogues for standards such as the European Conunittee for Standardization, CEN [42], FM Approvals [43], Underwriter s Laboratories (UL) [44], International Standards Organization (ISO) [45], American Society of Testing and Materials (ASTM) [46] and others. 

Underwriter s Laboratory (UL ) certified equipment has met criteria for electrical safety and as long as you follow instructions for equipment and don t defeat or disable the protections, you should be safe with UL equipment. You should always be concerned about non-UL equipment, ungrounded equipment, or unprotected equipment or outlets that don t have ground fault protection. This is especially true about equipment and instruments near water and plumbing. 

Testing of BSCs involves evaluation of the inflow velocity of air, the downflow velocity of air within the cabinet, and airflow smoke patterns, a HEPA filter leak test, a cabinet leak test, and an electrical connection integrity test (must meet Underwriter s Laboratory requirements), as well as other tests for lighting, vibration, and noise. 

The polymer has very high tensile strength, an Underwriter s Laboratories (UL) temperature index of 170°C, flame resistance, and low smoke emission. The polymer is resistant to alcohols, acids, and hydrocarbon solvent but will dissolve in partially halogenated solvents. Both glass- and carbon fiber-reinforced grades are available. 

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