National Test House

Standard followed in the N.T.H. for Testing and Calibration

Testing, Calibration, R&D and Project Consultancy

Country's Name	Standard followed
Indian	1. Indian Standard (IS) 2. Indian Railways Standard (IRS) 3. Indian Boiler Standard (IBR) 4. Rights 5. MNRE 6. DHMS 7. Customers Standard 8. MORTH
International	1. ISO 2. IEC
American	1. ASTM 2. ASME 3. AISI 4. AOIC 5. MIL 6. SAE
British	1. BS 2. NCB
German	DIN
French	OIML
Japanese	JS