化学品，成品油，植物油和其他动植物油通常作为散货用化学品液货船和成品油轮运输。自海上贸易以来，这些货物的质量问题一直是个争端，即使拥有先进技术，其质量纠纷还是会持续不断。
液体货在船上可能会受到诸如温度变化，与空气接触，光线，污染物，或其他污染物的影响。其他污染源包括自身生产的不合格，遭受岸上储罐和岸上管线的外部污染物质，还有船舶上一批货物的残留物和洗涤水。检验员将会在装货港和卸货港登船取样做货物质量检验。但是，检验常常是出自于货主的意图和利益。因此，建议船员自己收集货样以保护船方利益。适时且正确的液货取样是船舶管理团队监管所必不可少的。
详细信息请参阅附件。
Sampiling of Liquid Cargoes
Chemical cargoes, petroleum products, vegetable oils and other fats are often carried as bulk cargoes on board chemical and product tankers. Quality problems with these cargoes have been an issue since the dawn of this trade, and even with modern techniques these quality issues are likely to continue.
Liquid cargoes on tanker vessels may be exposed to influences such as temperature change, contact with air, light, pollutant, or other products. Other sources of contamination include failure in the production process and exposure to external substances from shore tanks and shore lines, as well as remnants of previous cargoes or wash water onboard the vessel. Cargo inspectors will be present on board the vessels to take samples from the cargoes at both the load- and discharge ports for quality check. However, the examinations are often conducted from the cargo company’s perspective and interests. Crew members of the vessel are, therefore, advised to collect their own samples to protect the vessel interests. Timely and proper sampling of liquid cargoes is essential of the vessel management team to observe.
See attached file: Sampling of Liquid Cargoes.pdf
