GB/T 8770-2014Determination of dynamic water adsorption capability for molecular sieve (English PDF)

Foreword

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

This standard replaces GB/T 8770-1988 "molecular sieve dynamic water adsorption measurement method", compared with the GB/T 8770-1988 Technical Changes are as follows.

--- Cancel the size requirements of the sample, the measurement conditions close to the conditions conditions of use;

--- Changing the feed gas adsorption temperature and humidity, a simple measurement method. The standard proposed by China Petroleum and Chemical Industry Association.

1 Scope

This standard specifies the method for determination of molecular sieve shaped product moisture adsorption nitrogen flow, a dynamic water adsorption zeolite shaped product Quantity and dynamics of water adsorption rate measurement method.

This standard applies to all types of granular molecular sieve.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. Laboratory use specifications and test methods GB/T 6682 Analysis

3 Terms and Definitions

The following terms and definitions apply to this document.

4 Instruments

4.1 All testing equipment, instruments should be qualified measurement, and within the validity period. Its accuracy should meet the requirements in Table 1.

4.2 All test equipment, instrumentation installation, use should be consistent with the use of the provisions of the relevant instruments and meters.