ph value guangfan test paper 1-14 ph water quality cosmetics urine soil ph ph ph test paper
ph value guangfan test paper 1-14 ph water quality cosmetics urine soil ph ph ph test paper
ph value guangfan test paper 1-14 ph water quality cosmetics urine soil ph ph ph test paper
ph value guangfan test paper 1-14 ph water quality cosmetics urine soil ph ph ph test paper
ph value guangfan test paper 1-14 ph water quality cosmetics urine soil ph ph ph test paper

ph value guangfan test paper 1-14 ph water quality cosmetics urine soil ph ph ph test paper

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ph value guangfan test paper 1-14 ph water quality cosmetics urine soil ph ph ph test paper

About the product

Characteristic

Origin

Yangzhou

Item number

Cases 1-14

Brand

Kases

Description

 

试纸尺寸详情



pH试纸1-14的使用方法

  步骤1:

  打开试纸的包装袋露出黄色的条状纸片,纸片为pH试纸,盒子表面有1-14种色卡,此色卡为pH标准色卡;

pH广范试纸1-14

  步骤2:

  取出试纸片,平放于干燥的玻璃片或塑料片上面(注明:玻璃片或塑料片必须是干燥清洁的);

pH广范试纸1-14

  步骤3:

  用玻璃棒或吸管取被测溶液滴于试纸的一端;

pH广范试纸1-14

  步骤4:

  一秒钟后试纸的溶液部位与试纸产生色的变化,此时与标准色卡对比,读出pH值,在检测中,pH值越小,则说明溶液的酸性越强,pH值为7时,溶液呈中性,pH值越大,则溶液的碱性越强;

pH广范试纸1-14

Characters

Properties

Origin

Yangzhou

Item number

Cases 1-14

Brand

Kases

Description

 

试纸尺寸详情



pH试纸1-14的使用方法

  步骤1:

  打开试纸的包装袋露出黄色的条状纸片,纸片为pH试纸,盒子表面有1-14种色卡,此色卡为pH标准色卡;

pH广范试纸1-14

  步骤2:

  取出试纸片,平放于干燥的玻璃片或塑料片上面(注明:玻璃片或塑料片必须是干燥清洁的);

pH广范试纸1-14

  步骤3:

  用玻璃棒或吸管取被测溶液滴于试纸的一端;

pH广范试纸1-14

  步骤4:

  一秒钟后试纸的溶液部位与试纸产生色的变化,此时与标准色卡对比,读出pH值,在检测中,pH值越小,则说明溶液的酸性越强,pH值为7时,溶液呈中性,pH值越大,则溶液的碱性越强;

pH广范试纸1-14

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