本周我们将继续发布液体化学品船安全指南(第四版)TANKER SAFETY GUIDE CHEMICALS Fourth edition中所涉及的知识点及相关内容，本期继续向业界发布所涉及的名词解释(中英文对照)，后续会陆续发布指南内容。希望给业界提供参考。

✍ Explosion proof/flame proof equipment

防爆装置/防止火焰装置

Equipment or apparatus which will withstand, without damage and in accordance with its prescribed rating (including recognised overloads), any explosion of a prescribed flammable gas to which it may be subjected under practical operating conditions and which will prevent the transmission of flame to the surrounding atmosphere.

是指一种装备或装置，该装置能承受住在实际作业中任何已知的可燃气体爆炸所产生的冲击波(包括已预计到的超负荷)而不被损坏，并能阻止火焰进入所防护的周围气体中。

✍Filling limit(or ratio)

货舱装载极限

That volume of a tank, expressed as a percentage of the total volume, which can be safely filled, having regard to the possible expansion(and change in density)of the liquid. 

是指货舱的体积，常用总体积的百分比来表示，该数值表示在考虑了货物最大的膨胀系数(和比重的变化)后货舱所能安全装载的货物数量。

✍Flame arrester

阻火器

A device used in gas vent lines to arrest the passage of flame into enclosed spaces.

是指一种装置，安装在通风管线上用以阻止火焰进入密闭舱室。

✍Flame screen(gauze screen)

防火网(铁纱网)

A portable or fitted device incorporating one or more corrosion resistant wire woven fabrics of very small mesh used for preventing sparks from entering a tank or vent opening, or for a short period of time preventing the passage of flame, yet permitting the passage of gas(not to be confused with Flame arrester).

是指一种移动式或固定式装置，有一层或多层耐腐蚀金属网组成极其细密网眼的防火网，以防止火花进入舱室或通风开口；或在短时间内保持舱室通风的同时防止火焰的进入(勿与阻火器混淆)。

✍Flammable

可燃物

Capable of being ignited and burning in air.A vapour/air mixture within the flammable range.

在空气中能被点燃并燃烧的物质。蒸气/空气混合物的浓度在可燃范围内。

✍Flammable gas

可燃气体

The minimum and maximum concentrations of vapour in air which form explosive(flammable)mixtures are known as the Lower Explosive Limit(LEL) and Upper Explosive Limit(UEL)respectively.(For the purpose of this Guide, these terms are synonymous with Lower Flammable Limit(LFL)and Upper Flammable Limit(UFL)respectively.).

在空气中能燃烧或爆炸的最小浓度称之为爆炸下限LEL、在空气中能燃烧或爆炸的最大浓度称之为爆炸上限UEL(等同于可燃下限LFL、可燃上限UFL)。

✍Flammable limits

爆炸极限

The range of flammable vapour concentrations in air between the lower and upper flammable limits. Mixtures within this range are capable of being ignited and burning.

可燃下限LFL与可燃上限UFL之间的范围即为爆炸极限，在这个浓度范围内的混合物能被点燃和燃烧。

✍Flammable range Flash point

可燃范围闪点

The lowest temperature at which a liquid gives off sufficient vapour to form a flammable mixture with air near the surface of the liquid or within the apparatus used. This temperature is determined by laboratory testing in a prescribed apparatus.

是指液体表面产生足够的蒸气与空气混合形成可燃性气体时的最低温度，或在规定的容器中进行。这个温度只能在实验室内使用规定的设备进行测定。

✍Gas dangerous space or zone

气体危险空间或区域

A space or zone within the cargo area which is designated as likely to contain flammable vapours and which is not equipped with approved arrangements to ensure that its atmosphere is maintained in a safe condition at all times.

是指在货物区域内的一个空间或区域，这个空间或区域很有可能含有可燃蒸气且在那里没有安装认可的装置对气体进行连续监测以确保该区域的气体处于安全的状态。

✍Gas detector

测爆仪

An instrument which alerts someone to the presence of gas, especially in spaces where gas is not normally expected.

是指一种设备，能提示某人是否暴露在可燃气体中，特别是在一些通常认为不会存在可燃气体的空间内。