Can we say Spring Batch is an implementation of the JSR 352 (spec for Batch Applications for the Java Platform) ?
What are some other implementations of JSR 352 ?
Yes. Spring Batch does implement the SE requirements for JSR-352. You can read more about that in the documentation here: http://docs.spring.io/spring-batch/trunk/reference/html/jsr-352.html
EDIT: This implementation was removed in Spring Batch 5. Versions of Spring Batch prior to Spring Batch 5 do include an implementation of JSR-352.