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The Underwriters Laboratories' UL 294 is a safety standard that addresses the construction, performance, and operation of access control systems intended to regulate or control entry into and exit from secured areas. These systems can also restrict access to certain devices through electrical, electronic, or mechanical means.
The UL enterprise [4] is a global private safety company headquartered in Northbrook, Illinois, composed of three organizations, UL Research Institutes, UL Standards & Engagement and UL Solutions. Established in 1894, the UL enterprise was founded as the Underwriters' Electrical Bureau (a bureau of the National Board of Fire Underwriters ), [ 5 ...
UL 94, the Standard for Safety of Flammability of Plastic Materials for Parts in Devices and Appliances testing, is a plastics flammability standard released by Underwriters Laboratories of the United States. [1] The standard determines the material's tendency to either extinguish or spread the flame once the specimen has been ignited.
Chemical Agents Warning Properties Latency Period Initial Symptoms Blister Agents Lewisite Gas: colorless Odor: geraniums Seconds to minutes
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Siddiqi, Muhammad Mian (1977). Tazkira Maulana Idrees Kandhlavi Rh (in Urdu). Lahore, Pakistan: Maqtaba Usmania, Jamia Ashrafia. Urgancı, İbrahim (2020). Hadis Şerhçiliği – Muhammed İdrîs el-Kandahlevî'nin et-Ta'lîku's-Sabîh Özelinde-[Interpretation of Hadith - A Study of Muhammed Idris Kandhlawi's Al-Taleeq al-Sabeeh ala Mishkat al-Masabih] (PDF) (in Turkish).