Compatibly Groups

Max. rated voltage of 24 V Electrical installation of loadcarrying compartment to be dust-protected (at least IP54 or equivalent) or in case of Compatibility Group (see Table 14.9) flame-proof Ex d (at least IP65 or equivalent)... 

Division (see Table 14.8) Compatibility group and form (see Table 14.9) Special goods vehicle Ordinary goods vehicle Private light goods vehicle... 

Explosives, See also Explosive chemicals Transportation carriage, 447, 460, 594 compatibility groups, 456 hazard classification, 447, 455 Exposure limits. See Hygiene standards Eye protection, 435... 

If chemical-specific information is not available, the consequences may be able to be predicted by methods using compatibility groups, or chemicals with similar chemical structures that are expected to have similar chemical reactivity characteristics. One computerized tool that uses this approach is the Chemical Reactivity Worksheet made available by the U.S. National Oceanic and Atmospheric Administration (NOAA 2002). This program has over 6000 chemicals, mixtures, and solutions included in its database. It also predicts chemical reaction consequences of combining two materials at a time (e.g., "Heat generation by chemical reaction, may cause pressurization"). Examples from the Chemical Reactivity Worksheet are shown in Section 4.2. It is critical that all chemicals be positively identified to have a complete evaluation of all potential incompatibilities. 

To produce fruit, pears need to be pollinated by another compatible cultivar—that is, you need to grow two different pears—and their compatibility groupings are quite complex, so seek advice when you buy. A specialty fruit nursery or mail order company can advise you on appropriate combinations of cultivars. Pears are slower to start cropping than apples. It is well worth buying a tree grown for three years In the nursery to shorten the time before you harvest your first crop. 

Compatibility Group G comprises any substance which is an explosive substance because it is designed to produce an effect by heat, light, sound, gas or smoke, or a combination of these as a result of non-detonative, self-sustaining, exothermic chemical reactions, or an article containing such a substance or an article containing both a substance which is explosive because it is capable by chemical reaction in itself of producing gas at such a temperature and pressure. 

Shape Charge Effectiveness — ca 120% of TNT Storage — Dry Hazard Class 9> Compatibility Group I... 

The combination of the Hazard Division and the Compatibility Group is known as Hazard Classification. Though 78 combinations seem possible from 6 Hazard Divisions and 13 Compatibility Groups, only 35 Classification Codes exist as shown in Table 6.1. 

Fire Division 4 These explosives present no significant explosion hazard but have a moderate fire hazard. The effects of fire are usually confined within the package. An external fire would not cause mass explosion of a package of such items. There could be toxic substances in them which may evolve toxic fumes on burning. These explosives belong to UN Compatibility Group K. 

Fused ammunition (Compatibility Group F ) should invariably be transported separately. 

Boracitol. A HE compn listed in Ordn Safety Manual ORDM 7 224(1958),Tables 1904 1905,pp 19-3 19 15 as Storage Compatibility Group L and Explosive Hazard Class 9. The compn props of this HE could not be found in std ref works, reports or in Ord manuals... 

Storage (for every expl) Dry hazard class (quantity - distance) 9 and compatibility group ... 

The various separations as used for the old QD classes have not been changed, but new storage compatibility groups (SCG) are used with the new system. Table 2 compares the SCG with the old DOT and the old military hazard classifications. Table 3 was excerpted from the UN safety standards and lists QD values in metric units... 

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