Hemshell Services are now world first Proficiency Testing (PT) provider for WVTR & OTR as per ISO 17043 accreditation by NABL. Hemshell services (associated unit of Hemetek) has succesfully completed assesment for ISO 17043 & now awarded with ISO 17043 accrediation by NABL as PT provider for WVTR & OTR testing.Hemshell services provide support to NABL ISO 17025 accrediated & Non acrediated laboratory with Profocenty testing scheme in WVTR as per ASTM F 1249 & in OTR as per ASTM D 3985- In accordance with ISO 17043 (Simultaneous scheme on yearly basis).