This standard specifies the following quantitative methods: Orthophosphate (see Chapter 1) Orthophosphate after extraction (see Chapter 2) Hydrolyzable phosphate and orthophosphate content (see Chapter 3) Total soluble phosphorus and after decomposition Total phosphorus (see Chapter 4)
JIS K 0400-46-40:2000 history
2016JIS K 0102:2016 Testing methods for industrial wastewater
2013JIS K 0102:2013 Testing methods for industrial wastewater
2008JIS K 0102:2008 Testing methods for industrial wastewater
2000JIS K 0400-46-40:2000 Water quality -- Determination of phosphorus -- Part 1: Ammonium molybdate spectrometric method