JB/T 8812-1998 This standard is equivalent to ISO 7131: 1984 "Earthmoving Machinery - Loader Terminology and Commercial Technical Specifications". It is a revision of ZB J83 002-87 "Loader Terminology". This standard specifies the terminology and commercial technical documentation of self-propelled crawler or tire loaders and their working devices. This standard applies to loaders defined in GB 8498.