Standard No.:	QB/T 1803-1993
Chinese Name:	工业酶制剂通用试验方法
English Name:	General methods of determination for industral enzymes
Professional Classification:	X60 Foods fermentation and brewing in general
Professional Classification:	QB Professional Standard - Light Industry
Issued by:
Issued on:	1993-07-29
Implemented on:	1994-03-01
Status:	VALID
Replace:	QB547-1980
Language:	English
File Format:	PDF
Word Count:	9500 words
Price(USD):	285 (USD)
Delivery:	via email in 1-3 business day

1 Subject content and application scope

This standard specifies the methods of determination for industrial enzymes.

This standard is applicable to the test of industrial enzymes.

2 Normative references

GB 601 Chemical reagent - Preparations of standard volumetric solutions
GB 603 Chemical reagent - Preparations of reagent solutions for use in test methods
GB 604 Chemical reagent - General method for the determination of pH ranges corresponding the colour transition of acid-base indicators
GB 1250 Rules for expression and judgment of limiting values
GB 4789.2 Microbiological examination of food hygiene - Detection of aerobic bacterial count
GB 4789.3 Microbiological examination of food hygiene - Detection of coliform bacteria
GB 4789.4 Microbiological examination of food hygiene - Examination of salmonella
GB 4789.15 Microbiological examination of food hygiene - Enumeration of molds and yeasts
GB 6004 Test sieves - Woven metal wire cloth (square opening series)
GB 6682 Water for laboratory use - Specification
GB 8170 Rules for rounding off of numerical values
GB 8451 Method for limit test of heavy metals in food additives
GB 9721 Chemical reagent - General rules for the molecular absorption spectrophotometry (ultraviolet and visible)

3 General and basic requirements

3.1 General requirements