GB/T 10504-2017Molecular sieve 3A (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces GB/T 10504-2008 "3A molecular sieve", compared with GB/T 10504-2008, the main technical changes are as follows.

--- Improve some of the main technical requirements of the product (see Chapter 4);

--- Modify spherical 3A molecular sieve and hollow glass spherical 3A molecular sieve specifications (see 4.3 and 4.4);

--- Increasing the spherical glass 3A molecular sieve gas desorption amount, powder falling and temperature rise technical requirements (see 4.4);

--- Remove the hollow glass with spherical 3A zeolite wear rate and crushing resistance of the technical requirements (see 4.4);

--- Modify the hollow glass with spherical 3A molecular sieve adsorption of static water test conditions (see 5.4).

1 Scope

This standard specifies the 3A molecular sieve terms and definitions, technical requirements, test methods, inspection rules and packaging, labeling, storage and transportation.

This standard applies to 3A molecular sieve powder, spherical and bar products, the main uses for the chemical, petroleum, natural gas, insulating glass, medicine Industrial desiccants.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 191-2008 Packaging - Pictorial signs

GB/T 6286 zeolite bulk density determination method

GB/T 6287 molecular sieve static water adsorption determination

GB/T 6288 granular molecular sieve particle size determination method

GB/T 6678-2003 General principles of sampling of chemical products

GB/T 6679-2003 General Principles of Sampling for Solid Chemical Products

GB/T 8170-2008 Representation and determination of rules for repair of numerical values and limit values

GB/T 8770 molecular sieve dynamic water adsorption method

HG/T 2783 zeolite crush resistance test method

HG/T 2843 chemical analysis of fertilizer products commonly used standard titration solution, standard solution, reagent solution and indicator solution

3 Terms and definitions

The following terms and definitions apply to this document.

4 Technical requirements