Standards related to:

QC/T 1158-2022**QC/T 1158-2022: PDF in English (QCT 1158-2022) **

QC/T 1158-2022

QC

AUTOMOBILE INDUSTRY STANDARD

OF THE PEOPLE’S REPUBLIC OF CHINA

ICS 43.020

CCS T 04

Method of calculating comprehensive water consumption for

unit output of automobile products

ISSUED ON: APRIL 08, 2022

IMPLEMENTED ON: OCTOBER 01, 2022

Issued by: Ministry of Industry and Information Technology of PRC

Table of Contents

Foreword ... 6

Introduction ... 7

1 Scope ... 8

2 Normative references ... 8

3 Terms and definitions ... 8

4 Statistical requirements ... 9

5 Calculation method ... 10

Method of calculating comprehensive water consumption for

unit output of automobile products

1 Scope

This document specifies the terms and definitions, statistical scope, calculation methods

of comprehensive water consumption for unit output of automobile products.

This document is applicable to the calculation of comprehensive water consumption for

unit output of automobile products.

2 Normative references

The contents of the following documents constitute the essential provisions of this

document through normative references in the text. Among them, for dated references,

only the version corresponding to the date applies to this document; for undated

references, the latest version (including all amendments) applies to this document.

GB/T 21534-2021 Water saving - Terminology

GB 24789 General rules for equipping and managing of the water measuring

instrument in water-use organization

3 Terms and definitions

The terms and definitions, as defined in GB/T 21534-2008, as well as the following

terms and definitions, apply to this document.

3.1

Total comprehensive water consumption of automobile products

The amount of water, which is actually consumed during the entire production

process of automobile products, within a certain measurement period.

3.2

Comprehensive water consumption for unit output of automobile products

Within a certain measurement period, the ratio -- of the comprehensive water

consumption of automobile products TO the total amount of qualified products

4.3 Types of comprehensive water consumption statistics

The types of automobile comprehensive water consumption statistics include surface

water (measured by water supply from water purification plants), groundwater, urban

water supply projects, other water or water products purchased by enterprises from the

market (such as steam, hot water, geothermal water, etc.). However, for steam, hot water,

underground hot water and other heated water or aquatic products, that do not enter the

unit product or use condensed water, they are not included in the statistics.

The types of comprehensive water consumption statistics for automobiles do not

include seawater, brackish water, rainwater, reused water, which is taken by the

enterprise itself, as well as the amount of water used by the enterprise for water products

supplied to the market (such as steam, hot water, and geothermal water, etc.).

Note: Recycled water refers to the wastewater, which is generated by enterprises, as stipulated

in 3.21 of GB/T 21534-2018, which is used directly or after treatment in a water unit or system.

4.4 Statistical cycle

The statistical cycle shall be a certain period of continuous production, which has a

statistical cycle of at least no less than 12 natural months.

4.5 Statistics on the quantity of automobile products

The statistics of quantity of automobile products shall be the quantity of qualified

automobile products, which are produced within the statistical cycle.

5 Calculation method

5.1 Calculation method of comprehensive water consumption of automobile

products

5.1.1 Calculation method of water intake in production system

The water consumption Q1 of the production system, in the production process of

automobile products, is calculated according to formula (1):

Where:

Q1 - The maximum value of water, which is taken from the production system,

during the production of automobile products, in cubic meters (m3);

QA - The numerical value of the water intake for the stamping process, in cubic

meters (m3)

......

Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.