... and compression, which can meet various test requirements. 1.Better than 0.5% of reading value accuracy effectively ... standards:ISO 37, GB 8808, GB/T 1040.1-2006, GB/T 1040.2-2006, GB/T ... 1-2008, GB/T 7122, GB/T 2790, GB/T 2791, GB/T 2792, GB14232.1-2004, GB15811-2001, GB/T1962.1-2001 ... , GB2637-1995, GB15810-2001, ASTM E4, ASTM D882, ASTM ...