Company Address:No.189, Sihu Rd., Dali City, Taichung County 412, Taiwan (R.O.C.) Service Tel:+886424933303    Fax:  +886424927091

Technical Communication
Comparison List
Rinse processes
Inspection method
268 Washing Baskets
520 Dish washers

 

Inspection method


     一、ABS residual Inspection method  

     二、Adipose - residual Inspection method   

      Amylo-residual Inspection method

一、ABS residual- Inspection method

 

Purpose: In order to check if dishes or food boxes are clean, and any residual or deposit of detergent leaves on them.

  圖片
   
 

Reagent, devices::

 

‧methyl alcohol
‧acetone
‧1% azure A reagent
‧10% hydrochloric acid
‧Chloroform
‧Droppers or test tubes
‧PH litmus paper

 

 

 

Inspection procedure:

 

圖片

 

圖片

 

圖片

1.

Droppers or test tubes

need to be washed with

methyl alcohol and

propyl alcohol before

use.


 

 

2.

Add 5ml water in the test object.

 

 

3.

Pour the test liquid into the dropper.

 

圖片

 

圖片

 

圖片

4.

Add 1 drop of 1% azure

A.

 


 

 

5.

Add 10% hydrochloric

acid, dilute the liquid to

PH.3.

 

 

6.

Add chloroform as much

as test liquid, and mix

them up completely.

 

圖片

 

7.

If chloroform turns blue,

it means ABS residual

remains on the surface of

the test object.


 

 

 

Suggestion: 

1. The dishes need to be soaked in advance, and rinsed with spray water for 5 seconds at least. Then clean the dishes with detergents.

2. Do not wash fruits or utensils with washing powder. 

 

Adapted from 「Simple Food Inspection」of Environmental Protection Authority.

TOP

 

二、 Adipose - residual  -  Inspection method

 

Purpose:In order to check if dishes or food boxes are clean, and any adipose residual or deposits leaves on them.

  圖片
   
  Reagent:
 

sudan IV or sudan III

methyl alcohol

sudan reagent                                                                                 

Dissolve 0.1g sudan IV or sudan III in 100ml alcohol as reagent.

   
  Inspection procedure:
 
圖片   圖片    
1.

Drop reagent on a clean

plate for inspection.

 

 
 
2.

Shake the plate slowly

until reagent spreads to

everywhere.

 
   
圖片   圖片    
3.

Smoothly rinse the plate

with water.

 

 
 
4.

The color will turn red if

adipose residual remains.

 
   
 

Note: The result of inspection depends on red spots. If the plastic plate for inspection is red, and

cannot be cleaned with water, methyl alcohol can remove the spots.

Suggestion: 

1.Improve rinse methods and had better wash dishes with 3-tank methods if adipose residual

   remains.

2.If dishwashing equipments are not available, please use disposal utensils and paper cups.

 

Adapted from 「Simple Food Inspection」of Environmental Protection Authority.

TOP

 

Amylo-residual   -  Inspection method

Purpose:  In order to check if dishes or food boxes are clean, and any amylum residual or deposits leaves on them.

Reagent:Iodine liquid

Dissolve 20g Potassium Iodine in 100ml water, later add 12.7g iodine in it. After completely dissolving, take 1ml from the dissolving water, and dilute it with 1000ml water once again as iodine reagent liquid.

Inspection method / procedure:

圖片

 

圖片

 

 

1.

Reagent


 

 

2.

Drop iodine reagent on a

clean plate for inspection

 

 

圖片

 

圖片

 

 

3.

Shake the plate slowly

until reagent spreads to

everywhere.

 


 

 

4.

The color will turn blue if

amylum residual

remains.

 

Suggestion:

1.Improve rinse methods and had better wash dishes with 3-tank methods if   amylum residual remains.

2.Use disposable chopsticks.

 

Adapted from 「Simple Food Inspection」of Environmental Protection Authority.

TOP

 

© 2007 G-winner Environmental Protection Co., Ltd. All Rights Reserved.Design by KDAN

About US Service Items Product Introduce Customer List Technical Communication Members Contact Us

Company Address:No.189, Sihu Rd., Dali City, Taichung County 412, Taiwan (R.O.C.)   

Service Tel:+886424933303    Fax: +886424927091  E-mail: service@g-winner.com