You should always check the guidelines set forth by your local municipalities or local fire department for disposal of hazardous materials.
ABS/Acrylonitrile-Butadiene-Styrene is only used for drainage, waste and vent (DWV) systems. PVC/Poly Vinyl Chloride is normally used on DWV systems, but in some cases can be used in pressure fluid applications (check with pipe manufacture for specific application guidelines). CPVC/ Chlorinated Poly Vinyl Chloride is normally used exclusively with pressure fluid systems with a variety of temperatures and pressures (check with pipe manufacture for specific application guidelines).
Green transition cement can be used to join ABS to PVC or any variation of the two, but only if local building codes approve the application.
VOC means “Volatile Organic Compound”. Volatile describes a liquid that evaporates at room temperature and Organic is a compound that contains carbon. A low VOC level is considered at or below 150g/L and g/L are grams per liter.
The heavy duty cement has the shortest working time once the joint has been assembled on pipe sizes up to 4” diameter. However, the heavy duty cement has the slowest set up time before the joint is assembled because of the slow evaporation process. Any pipe sizes over 4” should be discussed with the technical department.
The regular body cement has the longest working time once the joint has been assembled on pipe sizes up to 4” diameter. However, the regular body cement has the quickest set up time before the joint is assembled because of the quick evaporation process. Any pipe sizes over 4” should be discussed with the technical department.
There are a few specialty PVC and CPVC cements which do not require the pipe / fittings to be primed before the cementing process, but you still must check with your local municipality to see if they require priming the pipe and fittings first. Remember to never use primer on or with ABS products. 
The only cement that this applies to, is the Oatey All Weather. There is still the possibility of trace MEK residue since multiple cements are mixed in the mixers.
The primer should still be wet when applying the cement. This means that the chemicals within the primer are still evaporating, but the appearance will look dry. The proper time frame to apply cement and finish the joint assembly is within five (5) minutes after the primer is applied.  
If you have questions regarding what product to use, please contact our technical department for job specific application guidelines.