This part of GB/T 8570 specifies the apparatus and the procedure to be used for taking a representative laboratory sample of liquefied anhydrous ammonia (liquid ammonia), from a container (steel cylinder, tank car or storage tank).
2 Normative References
The following normative document contains provisions which, through reference in this part of GB/T 8570, constitute provisions of this part. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this part. However parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 3723 Sampling of Chemical Products for Industrial Use - Safety in Sampling (GB/T 3723-1999, idt ISO 3165:1976)
3 Principle
Removal of a liquified anhydrous ammonia sample into a stainless steel cylinder, which has previously been cleaned, dried and evacuated. Filling the sampling cylinder with the stipulated quantity that is permissible with regard to safety.
