指定天然气总硫的测定方法。适用于硫含量在0.5 mg/m3和1 000 mg/m3之间的气体。在吸收溶液中总硫含量超过0.1mg硫的情况下，可以选择用指示剂进行视觉滴定，而较低含量的比浊滴定是优选的

Specifies a method for the determination of total sulphur in natural gas. It is applicable to gases with sulphur contents between 0,5 mg/m3 and 1 000 mg/m3. With a total sulphur content of more than 0,1 mg sulphur in the absorption solution, visual titration with an indicator can be chosen, whereas for lower contents turbidimetric titration is preferable.