做此试验必须在通风良好处，并戴手套，面具以防水蒸气及锡焊剂烫伤。

Do this test must be in a well-ventilated place, and to wear gloves, masks in case of water vapor and tin flux burns.

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锡炉内至少容纳2磅以上的锡焊剂，并且定期分析焊剂中的不纯物，若不纯物含量超过表一所示的值时应立即更换焊剂。

At least in tin stove for two pounds of tin flux, and regularly analysis of things, not pure flux if not pure content of more than a table shows the value should be replaced immediately flux.

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下列因素是必须被考虑的：包括合金的类型、锡粉的粒径大小以及助焊剂的类型。

Factors, which must be taken into consideration, include the type of alloy, the size of the solder powder and the type of flux.

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