Hello
your questions are may be a little bit "misleading"
Regarding:
"I want to know how many types of SDS it have with standard SAP, GHS & OHSA SDS same or different"
From SAP point of view. answer is "zero". You don't get any SDS layout delivered from SAP (only if you buy contetn !). And the number of SDS you get is defined by you (and not by SAP; only if you buy content: then story is different) (if we specify that the "generation variant" is the "leading" factor for report generation)
Same for: What about REACh SDS is it come with standard or we have to customize?
You don't get "SDS" from SAP (only if you buy content !)
But focusing on your last topic
"My client need REACh SDS & OHSA,GHS Can we map both GHS & OHSA in same property tree??"
This is what I understand:
SAP delivers "default customizing" of many kind. You can us this to extend the solution to e.g. create a "SDS" (WWI layout etc). One important piece of delivery is the "STANDARD" property tree
You need to differentiate now "legislation" (e.g. GHS, REACH, OSHA) and property tree (and later document generation etc.)
To make it simple. you can use the STANDARD tree to support:
REACH
GHS
OSHA
and many other regulations. Check e.g. SAP EHS Standard Data model (EHS classic)
Your SAP philosophy (to use the STANDARD tree) depends on mainly these two factors:
a.) are you buying content from SAP (or from a different provider)?
b.) do you make sure that any property tree update (which is done via implementation of a SP) is implemented?
In context of: "Can we map both GHS & OHSA in same property tree?" My answer is: yes: you can use STANDARD tree; but in most cases you create "document" special driven trees to make maintenance "easier".
The "REACH" data model in STANDARD tree is the "most" complex one (because of the "special" approach to generate the "annex". If you have here no experience: don't try to do it on your own. The data model and the corresponding WWI layout are not easy to understand
C.B.
PS: any "regulation" trend is supported e.g. if you buy content from SAP. To my knowlegde: you are right. The "old" OSHA" rules are now getting "GHS" rules
But still the tree you have shown support the many demends from outside to e.g. a chemical company
PPS: some "kind" of similar discussion can be found e.g. here:
Mapping regulatory data for food contact in property tree
EH&S Property Tree Data Update/Delete
Missing characteristics in new eSDS properties
Save NFPA (National Fire Protection Association) Diamond Data in SAP
Recommand std EHS substance structure, properties, characteristic ?
Last PPS:
Are OSHA and GHS the same? answer: No ! GHS is not "GHS" any country does have their "own" GHS. You can not compare "OSHA to "GHS".
First you need to look for: who is acting (which authority in which country)? Which rule is "written"? GHS (and OSHA) are "big" terms. If you write them down normally more than one regulation need to be considered..
One important question you have not addressed (or asked): is customer maintaining the needed phrases by himself (or is he buying content)?