ARB

TEST FOR CONCENTRATED SOURCES THRESHOLD VALUE ON STANDARD DEVIATION (intNa). SCREEN ALL SOURCES WHOSE COUNTS ARB BELOW THRESHOLD... 

Chen C K, de Castro ARB and Shen Y R 1981 Surface enhanced second-harmonic generation Phys. Rev. Lett. 46 145-8... 

In the late 1980s attempts were made in California to shift fuel use to methanol in order to capture the air quaHty benefits of the reduced photochemical reactivity of the emissions from methanol-fueled vehicles. Proposed legislation would mandate that some fraction of the sales of each vehicle manufacturer be capable of using methanol, and that fuel suppHers ensure that methanol was used in these vehicles. The legislation became a study of the California Advisory Board on Air QuaHty and Fuels. The report of the study recommended a broader approach to fuel quaHty and fuel choice that would define environmental objectives and allow the marketplace to determine which vehicle and fuel technologies were adequate to meet environmental objectives at lowest cost and maximum value to consumers. The report directed the California ARB to develop a regulatory approach that would preserve environmental objectives by using emissions standards that reflected the best potential of the cleanest fuels. 

Mobile Source Division, AlcoholEueled Vehicle Elect Test Program 9th Interim Report, Pub. ARB /MS-89-09, California Air Resources Board, El Monte, Calif., Nov. 1989. 

L-cysteine DL- 2- amino thia2 oline- 4- c arb 0 xyUc hydrolase + racemase Pseud, thia olinophilum ... 

N- c arb amyl-D -/)-hydr o xy DL-/)-hydroxyphenylglycine hydantoinase Pseud, putida ... 

D,D-endopeptidase acting on maturing peptidoglycan D, D - c arb o xyp ep tidase transpeptidation is absent none apparent... 

Analogous reactions form sodiummethyldithiocarbamate [137-42-8] from methylamine, and disodiumethylenebis(dithiocarbamate) [142-59-6] from ethylenediamine. Iron, manganese, and 2iac salts can be prepared from the sodium salts heavy metals form characteristically colored compounds with dithio c arb amate s. 

SC = suspension culture ARB = automated roUerbotdes MA = mouse ascites. 

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