AWWA B200-17 pdf download.Sodium Chloride
AWWA B200-17 describes sodium chloride in the forms of rock, vacuum-gran- ulated, compressed vacuum-granulated, solar, and compressed solar salt for use in the recharging of cation-exchange materials in water supply service for softening municipal and industrial potable water, wastewater, and reclaimed water supplies. Additionally, sodium chloride is used in the recharging of anion-exchange materi- als for nitrate removal or dealkalization of municipal and industrial supplies.
The purpose of this standard is to provide the minimum requirements for sodium chloride, including physical, chemical, sampling, packaging, shipping, and testing requirements.
This standard can be referenced in the purchaser’s documents for purchasing and receiving sodium chloride and can be used as a guide for testing the physi- cal and chemical properties of sodium chloride samples. Te stipulations of this standard apply when this document has been referenced and then only to sodium chloride used in the treatment of potable water, wastewater, or reclaimed water.
5.2.3 Bulk shipments. When delivered in bulk, the samples shall be repre- sentative of all parts of the bulk loads and shall not contain a disproportionate share of the top or bottom layers. Coarse material taken from bulk loads shall comprise at least 10 shovelfuls from diferent parts of the load, and the total material shall weigh not less than 100 lb (45 kg). Te material shall be mixed and divided to make a sample of approximately 10 lb (4.5 kg) and handled as described in Sec. 5.2.5.
5.2.4 Device. Finely divided material, whether in bulk or packages, may be sampled using a sampling tube that is at least ¾ in. (19 mm) in diameter. Special precautions shall be used to avoid taking a disproportionate amount of the sample from the top or the bottom layers of the material. If the sodium chloride is handled by conveyor or elevator, a mechanical sampling arrangement may be used.
5.2.5 Handling. Te gross sample, weighing at least 10 lb (4.5 kg), shall be thoroughly mixed and split to provide three 500-g material samples. Each mate- rial sample shall be sealed in an airtight, moisture-proof glass or plastic container. Each sample container shall be labeled to identify it, and the label shall be signed by the sampler.AWWA B200-17 pdf download.