Safety diamond

NFPA 704 (NFPA 2012) defines the fire or safety diamond used by emergency personnel to quickly and easily identify the risks posed by nearby hazardous materials. It is also used within process facilities, particularly in storage areas and tank farms. 

A fresh start and the true beginning of bicycles becoming a popular means of transportation can be traced to around 1886 and the efforts of John Kemp Starley and William Sutton. With equal-sized wheels, tubular steel diamond-shaped frame geometry, and a chain-and-sprocket chain drive to the rear wheel, the safety bike looked much like the modern version. 

Rotary Speed. Diamond bits can usually be rotated at up to 150 rpm without any problem when hole conditions and drill string design permit. Rotary speeds of 200 and 300 rpm can be used with stabilized drill strings in selected areas. Diamond bits have also operated very successfully with downhole motors at 600 to 900 rpm. The actual rotary speed limits are usually imposed by safety. 

Ankley, G.T., Degitz, S.J., and Diamond, S.A. et al. (2004). Assessment of enviromnental stressors potentially responsible for malformations in North American annran amphibians. Ecotoxicology and Environmental Safety 58, 7-16. 

Pyrophoric and other spontaneously combustible substances will generally be identified as such on their product literature, material safety data sheets (MSDSs), or International Chemical Safety Cards (ICSCs). If transported, these substances should be identified as DOT/UN Hazard Class 4.2 materials for shipping purposes and labeled as spontaneously combustible. For pyrophoric substances, the NFPA 704 diamond for container or vessel labeling has a red (top) quadrant with a rating of 4, indicating the highest severity of flammability hazard (NFPA 704, 2001). Note that pyrophoric materials often exhibit one or more other reactivity hazards as well, such as water reactivity. 

It wasn t until 1874 that the first truly modem bicycle appeared on the scene. Invented by another Englishman, H. J. Lawson, the safety bicycle would look familiar to today s cyclists. The safety bicycle had equal-sized wheels, which made it much less prone to toppling over. Lawson also attached a chain to the pedals to drive the rear wheel. By 1893, the safety bicycle had been further improved with air-filled rubber tires, a diamond-shaped frame, and easy braking. With the improvements provided by Lawson, bicycles became extremely popular and useful for transportation. Today, they are built, used, and enjoyed all over the world. 

Moller M, Torp-Pedersen C, Kober L. Dofetilide in patients with congestive heart failure and left ventricular dysfunction safety aspects and effect on atrial fibrillation. The Danish Investigators of Arrhythmia and Mortality on Dofetilide (DIAMOND) Study Group. Congest Heart Fail 2001 7(3) 146-50. 

Borison RL, Albrecht JW, Diamond BI Efficacy and safety of a putative anxiolytic agent ipsapirone. Psychopharmacol Bull 26 219-222, 1990 Born GVR, Grignani G, Martin K Long-term effect of hthium on the uptake of... 

R.K. Warner, "Measuring Output, Safety and Reliability of Explosive Components , Harry Diamond Laboratories HDL-TM-71 -34 (Nov 1971)... 

Pictorials are designed for quick reference in emergency situations, but they are also useful as minimal summaries of safety information for a chemical. They are not required on chemicals you purchase, so it s a good idea to add a label pictorial to every chemical you receive if one is not already present. The entrance to areas where chemicals are stored should carry a fire diamond label to represent the materials present. 

Note. Patterned tile such as the diamond pattern will harbor grease and organic residue. It is not acceptable under some local sanitary laws. Labor safety laws often require a non-skid surface. Emery grit embedded in the surface of the quarry tile will meet the non-skid criteria. However, the employees may complain that the emery surface wears out their shoes too quickly and is difficult to clean. Warn the owner. 

The NFPA diamond provides safety information at a glance. 

NFPAfire diamonds, HMIS system, RCRA, DOT, and OSHA. National Safety Council Purchase 595... 

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